bluuebunny/crossref_metadata_2025 huggingface dataset:
304 channel MicroLED based CMOS transceiver IC with aggregate 1 Tbps and sub-pJ per bit capability
Authors: Pezeshki Bardia , Rangarajan Suresh , Tselikov Alex , Afifi Emad , Huang Ivan , Pepper Jeff , Zou Sarah , Rourke Howard , Pocock Rowan , Fikouras Alasdair , Khoeini Farzad , Mirkhani Vahid , Novak Steve , Kalman Rob
Published: May 2024

1Tbps 16nm-CMOS transceiver IC with microLED array-based transmitter and hybrid silicon detector array runs at about 1pJ/bit using 304 channels at 3.3Gbps per lane. Initial results are shown for single lane and in various configurations.
Ultra-Compact and Ultra-Broadband Mode (De)Multiplexer Utilizing an Asymmetrical Coupler with SWG and Cascaded Tapered Waveguide
Authors: Mohammed Zakriya , Paredes Bruna , Rasras Mahmoud
Published: May 2024

A 25 μm two-mode (de)multiplexer on a silicon-on-insulator platform is demonstrated. Operating in 200 nm bandwidth, it achieves low insertion-loss (< 0.9 dB), minimal crosstalk (< 18.8 dB), and clear eye diagrams at 64 Gbit/s.
Multi-Dimensional Light Field Manipulation on Diverse Integrated Photonic Platforms
Authors: Wang Jian
Published: May 2024

We review advances in multi-dimensional (frequency, time, complex amplitude, polarization, spatial structure) light field manipulation on diverse integrated photonic platforms (silicon, silica, polymer, III-V, metal, fiber). Silicon photonic integrated circuits, femtosecond laser direct writing 3D photonic chips, InP active photonic integrated devices, and metasurfaces for shaping light are demonstrated. Potential applications and future perspectives are discussed.
Experimental Demonstration of Amplifier-Less 82GBaud PAM4 Transmission over 40 km Using APD at O Band
Authors: Wei Haiqiang , Ran Kemo , Zhong Kangping , Lau Alan Pak Tao , Yu Changyuan , Lu Chao
Published: May 2024

We experimentally demonstrated an amplifier-less transmission of a record high 82Gbaud PAM4 signal over 40km using O-band APD with a receiver sensitivity of -15.8dBm.
First Demonstration of 4×4 Distributed MIMO Communication with 3GPP-compliant 5G Smartphone utilizing SCM/WDM-Based IF-over-Fiber MFH Link
Authors: Nimura Shinji , Tanaka Kazuki , Yazdandoost Kamya Yekeh , Inohara Ryo , Suzuki Masatoshi , Tsuritani Takehiro
Published: May 2024

We successfully demonstrated the real-time bi-directional 5G-compliant 4×4 Distributed-MIMO communication for the first time utilizing SCM/WDM-based IF-over-Fiber mobile fronthaul link architecture and commercially available smartphone for realizing future antenna distribution mobile communication systems.
High Efficiency Single-Sideband Modulator using Coupled Bragg Grating Resonators on Thin-Film Lithium Niobate
Authors: Chen Nuo , Xiong Bo , Yue Hengsong , Lou Kangping , Chu Tao
Published: May 2024

We demonstrate an efficient single-sideband thin-film lithium niobate modulator with periodically cascaded Bragg gratings. The device achieves the highest modulation efficiency that has been reported (0.19 V/cm) with a compact phase-shifter length (542 µm).
Orchestration of Entanglement Distribution over a Q-LAN using the IEQNET Controller
Authors: Chung Joaquin , Ramesh Anirudh , Islam Shariful , Kanter Gregory S. , Peña Cristián , Xie Si , Valivarthi Raju , Sinclair Neil , Spentzouris Panagiotis , Spiropulu Maria , Kumar Prem , Kettimuthu Raj
Published: May 2024

We will demonstrate orchestration of entanglement distribution over a quantum local area network (Q-LAN) using a quantum network controller. Our controller enables multiple users to share a Q-LAN composed of commercial equipment for quantum communications.
Single-Shot Ultra-Broadband Spectrometer with Cascaded Nanobeam Mirrors
Authors: Yao Chunhui , Yao Chumeng , Bao Peng , Ma Jie , Yan Ting , Penty Richard , Cheng Qixiang
Published: May 2024

We present a novel reconstructive spectrometer with cascaded nanobeam mirrors. A compact SiN spectrometer is demonstrated achieving <0.5 nm resolution across 160 nm bandwidth with only 15 sampling channels, yielding a record-high spectral pixel-to-channel ratio.
Can the PON Legacy Infrastructure Host Quantum Key Distribution Services?
Authors: Parolari Paola , Gagliano Alessandro , Gatto Alberto , Boffi Pierpaolo , Martelli Paolo
Published: May 2024

The integration of quantum key distribution in the legacy access infrastructure is analyzed considering the optical distribution network characteristics and the coexistence of multiple passive optical network standards providing classical channels, sources of Raman crosstalk.
Reinforced Q-Learning Enabled Automatic Blind Working Wavelength Alignment Against Wide Input-Wavelength Shifts and Temperature Variations for Silicon Photonic Vernier Ring Filters
Authors: Cong Guangwei , Konoike Ryotaro , Suzuki Keijiro , Yamamoto Noritsugu , Kou Rai , Maegami Yuriko , Ohno Morifumi , Ikeda Kazuhiro , Namiki Shu , Yamada Koji
Published: May 2024

We experimentally demonstrate long-time (~10 hours) continuous full-C-band automatic working wavelength alignment for silicon photonic cascaded-ring vernier filters against wide input-wavelength and temperature changes using reinforced Q-learning method, without pre-building look-up table and temperature monitor.
56G VCSEL Transmission at 980 nm across 500 m Multimode Fiber
Authors: Hellmig Jochen , Chen Xin , Safaisini Rashid , Juarez Adrian , Dragt Jeroen , Hurley Jason E. , Moser Philip , Sassiya Bedouin , King Roger , Larisch Gunter , Li Ming-Jun , Koerner Roman
Published: May 2024

Transmission of 56-Gbps signals across a 500-meter 980 nm optimized multimode fiber with 14.2 GHz·km bandwidth using 980 nm multimode VCSEL is demonstrated. The results show promising performance within IEEE standards for short reach applications.
130.6-Tb/s Self-homodyne Coherent Transmission over Weakly-Coupled FMF for Data Center Applications
Authors: Qiao Gang , Yang Yu , Xu Zhaopeng , Zuo Mingqing , Long Chengbin , Zhang Jiarui , Wang Shangcheng , Liu Lulu , Wu Qi , Liang Junpeng , Shen Lei , Luo Jie , Ji Honglin , He Zhixue , He Yongqi , Chen Zhangyuan , Hu Weisheng , Li Juhao
Published: May 2024

We experimentally demonstrate high-capacity MDM self-homodyne coherent transmission over 30-km weakly-coupled 10-mode fiber with specially designed multiple-ring-core profile, achieving a total throughput of 130.6 Tb/s with 9 information-bearing modes carrying 16-λ 120-GBaud PCS 64-QAM signals.
Co-propagation of Classical and Continuous-variable QKD Signals over a Turbulent Optical Channel with a Real-time QKD Receiver
Authors: dos Reis Frazão João , van Vliet Vincent , van der Heide Sjoerd , van den Hout Menno , Gümüş Kadir , Albores-Mejia Aaron , Škorić Boris , Okonkwo Chigo
Published: May 2024

We demonstrate classical and quantum signal co-propagation over a turbulent free-space channel with 3 Tbit/s throughput and record 2.7 Mbit/s secret-key rate. Our real-time GPU-based receiver assessed quantum signal integrity under different turbulence scenarios for the first time.
Datacom-Agnostic Shortwave QKD for Short-Reach Links
Authors: Ramos Mariana Ferreira , Slater Marie-Christine , Hentschel Michael , Achleitner Martin , Hübel Hannes , Schrenk Bernhard
Published: May 2024

We investigate the co-existence of 852-nm and 1550-nm QKD with carrier-grade 4×25-Gb/s/λ LAN-WDM over a short-reach interconnect. Shortwave QKD yields a higher key rate and is insensitive to Raman noise, as opposed to 1550-nm QKD.
Free-space optical receiver with real-time self-configuration using a fully integrated CMOS controller
Authors: Sacchi E. , Andronie A. , SeyedinNavadeh S. , Zanetto F. , Morichetti F. , Melloni A. , Sampietro M. , Ferrari G.
Published: May 2024

We present a CMOS chip for closed-loop control of integrated photonic processors, able to configure 8 interferometers in 20ms while consuming 80mW. The chip autonomously mitigates the effect of atmospheric turbulence in free-space receivers.
Photon-Counting Technologies for Efficient High-Capacity Space-to-Ground Laser Communications§
Authors: Caplan D. O. , Darling Z. J. , Grein M. E. , Guyton M. , Russo D. , Tyrrell B. , Wagner A.
Published: May 2024

Photon-counting optical receivers have the best sensitivity but are practically limited to relatively low data rates < ~1 Gbit/s. Here, we present technologies that can extend sensitive photon-counting-performance into the 100 Gbit/s regime and beyond.
Demonstration of On-Chip Optical Frequency Comb Generation and Optical Injection Locking
Authors: Andrianopoulos Efstathios , Lyras Nikolaos K. , Qian Tianwen , Deumer Milan , Megas Georgios , Schwanke Garrit , Gupta Y Durvasa , Groumas Panos , Tegegne Zerihun G. , Schuler Ben , Ali Muhsin , Snyder Bradley , Nellen Simon , Tsokos Christos , de Felipe David , Massaouti Maria , Carpintero Guillermo , Kohlhaas Robert B. , van Kerkhof Joost , Keil Norbert , Kouloumentas Christos , Avramopoulos Hercules
Published: May 2024

We experimentally demonstrate for the first time a photonic integrated circuit comprising an optical frequency comb generation unit and an optical injection locking unit, as part of a fully packaged photonic wireless sub-THz receiver module.
All-Optical GOSNR Estimation on an Open Line System Using Polarization-Resolved Optical Spectrum Analysis
Authors: He Gang , Searcy Steven , Tibuleac Sorin
Published: May 2024

We introduce an all-optical method for estimating linear and nonlinear noise using an unmodulated laser source and varied state of polarization optical spectrum analyzer, then experimentally validate the technique against the conventional transceiver-based GOSNR approach.
102-Tbit/s C-Band WDM-MDM-PDM Transmission over 1000-km FMF Enabled by Advanced Block-Wise MIMO-FD-DFE
Authors: Wang Chen , Sang Bohan , Wang Kaihui , Ding Junjie , Zhou Wen , Long Jianyu , Zhao Xianming , Ye Bing , Chen Weizhang , Xin Xiangjun , Liu Bo , Shen Lei , Yu Jianjun
Published: May 2024

A high-performance block-wise MIMO-FD-DFE is proposed and experimentally verified in an 80-channel MDM system at the C-band for ISI compensation, which extends the transmission distance by over 33.33% at 20% SD-FEC threshold.
Enabling Technologies for Scalable ROADMs (invited)
Authors: Roorda Peter , Smith Brian , Colbourne Paul , McLaughlin Sheldon , Matthews Martin
Published: May 2024

Continued ROADM capacity scaling will require WSS devices in quad and octal configurations, with higher port counts, that operate across wider bands (C and L). Introduction of hybrid fiber/wavelength switching architectures for multi-rail will follow.
High-speed and low-power optical DAC transmitter using all-silicon lumped segmented modulator directly driven by CMOS inverter driver
Authors: Sobu Yohei , Tsunoda Yukito , Mori Toshihiko , Huang Guoxiu , Yamamoto Takuji , Tanaka Shinsuke , Hoshida Takeshi
Published: May 2024

We fabricated a 2×2-bit optical DAC transmitter using silicon segmented modulators and CMOS drivers. Highest symbol rates of 56Gbaud PAM4 and 50Gbaud 16QAM were achieved with transmitter density higher than 300Gbps/mm2 among optical DAC transmitters.
Activation Stretching for Tackling Noise in Photonic Aware Neural Networks
Authors: Paolini E. , De Marinis L. , Valcarenghi L. , Maggiani L. , Andriolli N.
Published: May 2024

This paper introduces a stretching strategy for nonlinear activation functions aimed to enhance noise resilience in photonic-aware neural networks. Its effectiveness is numerically demonstrated in counteracting different noise levels in low-resolution operations.
Learning to Extract Distributed Polarization Sensing Data from Noisy Jones Matrices
Authors: Farsi Mohammad , Häger Christian , Karlsson Magnus , Agrell Erik
Published: May 2024

We consider the problem of recovering spatially resolved polarization information from receiver Jones matrices. We introduce a physics-based learning approach, improving noise resilience compared to previous inverse scattering methods, while highlight-ing challenges related to model overparameterization.
08 fF, 0.72 nA dark current, 91% Quantum Efficiency, 38 Gb/s Nano-photodetector on a 45 nm CMOS Silicon-Photonic Platform
Authors: Fu Mingye , Ben Yoo S. J.
Published: May 2024

We demonstrated a Germanium-on-Silicon photodetector utilizing an asymmetric-Fabry-Perot resonator with 0.08 fF capacitance. The measurements at 1315.5 nm show 0.72 nA (3.40 nA) dark current, 0.93 A/W (0.96 A/W) responsivity, 36 Gb/s (38 Gb/s) operation at -1V (-2V) bias.
Filter-Less Synthesis of 50-GHz Double-Spaced Flat Optical Comb by In-phase/Quadrature Electro-Optic Modulator for High Bandwidth Transmission
Authors: Harada Shun , Ishijima Tatsuki , Sakamoto Takahide
Published: May 2024

50-GHz spaced flat optical comb is experimentally generated in the electro-optic modulation process by using an IQM driven with 25 GHz signals. We demonstrate that the double-frequency-spaced comb effectively carries multi-channel 5x28 Gbaud signals.
16.9 Gb/s Single-Channel LWIR FSO Data Transmission with Directly Modulated QCL and MCT Detector
Authors: Joharifar Mahdieh , Dely Hamza , Durupt Laureline , Ostrovskis Armands , Schatz Richard , Puerta Rafael , Bonazzi Thomas , Maisons Gregory , Gacemi Djamal , Zhang Lu , Spolitis Sandis , Sun Yan-Ting , Bobrovs Vjačeslavs , Yu Xianbin , Vasanelli Angela , Ozolins Oskars , Sirtori Carlo , Pang Xiaodan
Published: May 2024

We experimentally demonstrate a room-temperature LWIR FSO link with a 9.1-μm directly modulated QCL and an MCT detector. Net bitrate of up to 16.9 Gb/s is achieved at both 15°C and 20°C over a 1-meter distance.
Arbitrary Mode Size Conversion with 3D-Nanoprinted Couplers: A Generic Coupling Strategy
Authors: Huang Huiyu , Shi Zhitian , Talli Giuseppe , Kuschnerov Maxim , Penty Richard , Cheng Qixiang
Published: May 2024

We present a solution for efficient off-chip coupling with no requirement of on-chip mode engineering and additional manufacturing processes. A 10.4µm to 4µm fiber-to-chip mode-field-dimension conversion is demonstrated with ~2dB loss across >100nm wavelength range.
1 Million Intrinsic Q-Factor Microring Resonators From PVD Aluminum Nitride on SiO2-on-Si Substrate
Authors: Tong Amy S. K. , Chung Wing Wai , Goh Charmaine , Tobing Landobasa Y. M. , Lim Leh Woon , Akimov Yuriy A. , Quek Zhan Jiang , Anthur Aravind P. , Goh Jia Sheng , Lin Huamao , Singh Navab , Zhang Qingxin , Ng Doris K. T.
Published: May 2024

We present PVD AlN microring resonators on SiO2-on-Si substrate with intrinsic Q-factor >1 million at C-band. To the best of our knowledge, this is the highest intrinsic Q-factor reported for PVD AlN on SiO2-on-Si substrate.
Record Low Loss Optical Fiber with 0.1397 dB/km
Authors: Sato Shin , Kawaguchi Yuki , Sakuma Hirotaka , Haruna Tetsuya , Hasegawa Takemi
Published: May 2024

We have achieved low loss record of 0.1397 dB/km at 1566 nm wavelength and 0.1406 dB/km at 1550 nm on a Ge-free silica-core fiber that has been achieved by the further reduction of fictive temperature.
Moore’s Law Redefined for AI/HPC
Authors: Schmidtke Katharine , Schmidtke Hans-Juergen
Published: May 2024

Examining the impact of AI workloads on system performance, we reapply Moore’s law at the system level to uncover the implications for photonic components and the drivers that will propel the photonic industry forward.
High-efficiency ISAC to enable sub-meter level vibration sensing for coherent fiber networks
Authors: Wang Jingchuan , Lu Liwang , Wang Li , Yan Yaxi , Lau Alan Pak Tao , Lu Chao
Published: May 2024

We demonstrate 0.5 m resolution vibration sensing and 60 GBaud 16-QAM data transmission with negligible crosstalk over 10 km fiber using a new integrated communication and distributed acoustic sensing scheme with shared spectrum and transmitter.
Local Wind Impact Sensing using State of Polarization Measurement on a Live Short-Haul Aerial Fibre Cable
Authors: Skarvang Kristina Shizuka Yamase , Bjørnstad Steinar , Sæthre Erik , Hjelme Dag Roar
Published: May 2024

A short aerial cable spun on a high-voltage line is used to monitor wind-induced stress on the cable infrastructure. Span-by-span localized early warnings may be issued based on the state of polarization transients.
30 Gbit/s Visible Light Communication System with Optimized Color Temperature
Authors: Loureiro Pedro A. , Fernandes Gil M. , Correia Sandra F. H. , Ferreira Rute A. S. , Guiomar Fernando P. , Monteiro Paulo P.
Published: May 2024

We jointly optimize the bit rate and correlated color temperature (CCT) of a diffuse light RGB-VLC system using laser diodes. Bit rates of 27-33 Gbit/s and CCT of 2500-6500 K are experimentally demonstrated, respecting the lighting recommendations for a set of potential application scenarios.
1.6 Tbps (224 Gbps/λ) Silicon Photonic Engine Fabricated with Advanced Electronic-Photonic FOWLP for Co-Packaged Optics and Linear Drive Applications
Authors: Li Xin , Gourikutty Sajay B. N. , Wu Jiaqi , Lim Teck Guan , Guo Pengfei , Davies Jaye C. , Koh Edward Sing Chee , Long Lau Boon , Jong Ming Chinq , Li Chao , Lo Guo-Qiang , Bhattacharya Surya , Liow Jason Tsung-Yang
Published: May 2024

A 1.6 Tbps (8-channel 224 Gbps/λ) Silicon Photonic Engine, fabricated using advanced electronic-photonic FOWLP, is successfully demonstrated for the first time, enabling low-cost, volume-manufacturable and highly scalable terabit photonic engines for CPO and LPO.
Programmable Packet-Optical Networks using Data Processing Units (DPUs) with Embedded GPU
Authors: Castoldi Piero , Bakar Rana Abu , Sgambelluri Andrea , Olmos Juan Jose Vegas , Paolucci Francesco , Cugini Filippo
Published: May 2024

Data Processing Units (DPUs) with embedded GPU have the potential to rev-olutionize optical networks functionalities at the edge. Use cases are presented for optical data monitoring with local AI processing and embedded security.
Availability-Guaranteed Differentiated Provisioning in Integrated Satellite-Terrestrial Optical Networks
Authors: Zhang Lu , Li Xin , Tornatore Massimo , Xin Jingjie , Huang Shanguo
Published: May 2024

This paper investigates differentiated provisioning in integrated satellite-terrestrial optical networks. Two connection availability models are developed considering network dynamic nature. Two availability-guaranteed differentiated provisioning algorithms are proposed. Their effectiveness is verified by numerical results.
A Gaussian Boson Sampling Based Ising Solver
Authors: Zhu H. H. , Chen H. S. , Cai H. , Chen T. , Chin L. P. , Zhang X. D. , Liu A. Q.
Published: May 2024

This paper presents an on-chip Gaussian Boson Sampling microprocessor, powered by photonic technology, proficiently solving graph combinatorial problems like max cut and vertex cover. It demonstrates photonic quantum computing's potential to accelerate traditionally insurmountable computations.
Ultra-Wide Bandwidth and High Saturation Power Uni-Traveling Carrier Photodiodes
Authors: Xiong Bing , Tian Yuxin , Sun Changzheng , Hao Zhibiao , Wang Jian , Wang Lai , Han Yanjun , Li Hongtao , Gan Lin , Luo Yi
Published: May 2024

In this talk, we present our recent work on ultra-wide bandwidth (>100 GHz) uni-traveling-carrier photodetectors with high saturation power, by optimizing the photogenerated carrier transport and taking advantage of the inductive gain peaking effect.
C-band Net 1.8 Tb/s (240Gb/s/λ× 8λ) DWDM IM/DD Transmission over 1.4km AR-HCF with Linear FFE Only
Authors: Li Chao , Liu Zichen , Sun Yizhi , Gao Shoufei , Wang Qibing , Chen Hui , Jin Siyue , Luo Ming , Zhang Xu , Yang Chao , Wang Yingying , Ding Wei , Wang Lei , Xiao Xi , He Zhixue , Yu Shaohua
Published: May 2024

Record net 1.8Tb/s IM/DD optical interconnect supported by 8λ dense wavelength division multiplexing technique in C-band over wide-band low dispersion anti-resonant hollow-core fibre (AR-HCF) is experimentally demonstrated under 6.7% HD-FEC limit with linear FFE only.
MAC-assisted DSP Architecture for 50G TDM-PON Upstream Triple-Rate Reception
Authors: Zhang Nannan , Li Junwei , Bai Lirong , Zhao Xiangnan , Yu Miao , Hu Leiya , Liu Gengchen
Published: May 2024

We propose and experimentally demonstrate a MAC-assisted DSP for tri-rate upstream reception of 50G PON, which greatly reduces preamble time and achieves requirements of power budget C+ class for BTB and 20km transmission.
Real-Time Monitoring of Cable Break in a Live Network using a Coherent Transceiver Prototype
Authors: Mazur Mikael , Wallberg Dennis , Dallachiesa Lauren , Börjeson Erik , Ryf Roland , Bergroth Magnus , Josefsson Börje , Fontaine Nicolas K. , Chen Haoshuo , Neilson David T. , Schröder Jochen , Larsson-Edefors Per , Karlsson Magnus
Published: May 2024

We monitor a 524-km live network link using an real-time FPGA-based sensing-capable transceiver prototype during a human-caused cable break. Polarization sensing data shows minute-level potential break warning precursors, offering outage mitigation prospects.
32 ×100 GHz WDM filter based on ultra-compact silicon rings with a high thermal tuning efficiency of 5.85 mW/π
Authors: Deng Qingzhong , El-Saeed Ahmed H. , Elshazly Alaa , Lepage Guy , Marchese Chiara , Kobbi Hakim , Magdziak Rafal , De Coster Jeroen , Singh Neha , Filipcic Marko Ersek , Croes Kristof , Velenis Dimitrios , Chakrabarti Maumita , De Heyn Peter , Verheyen Peter , Absil Philippe , Ferraro Filippo , Ban Yoojin , Van Campenhout Joris
Published: May 2024

To the best of our knowledge, this paper has achieved the lowest thermal tuning power (5.85 mW/π) for silicon rings with FSR≥3.2 THz, and the first silicon ring-based WDM-32×100 GHz filter.
S+L Dual Band Silica Based EDFA Enabling Seamless Upgrade from C-band to S+C+L Triple Band System
Authors: Akasaka Youichi , Palacharla Paparao
Published: May 2024

We propose S+L dual-band silica-based EDFA, enabling seamless upgrade from C-band to S+C+L triband transmission system. We achieve ~20dB gain, ~6dB NF with this 3-stage EDFA and 1500nm-1600nm gain bandwidth when combined with C-band EDFA.
Computation with degenerate optical parametric oscillator networks
Authors: Takesue Hiroki , Inagaki Takahiro , Inaba Kensuke , Ikuta Takuya , Yamada Yasuhiro , Yonezu Yuya , Honjo Toshimori
Published: May 2024

We report the recent progress of a coherent Ising machine, which simulates the Ising model using a network of degenerate optical parametric oscillators (DOPO). We also describe a spiking neural network realized with DOPOs.
Nonlinear Vector Autoregressor Equalization for PAM-4 Micro-Ring Modulator-based Short-Reach Transmission
Authors: Osadchuk Yevhenii , Kong Deming , Zibar Darko , Ros Francesco Da
Published: May 2024

We experimentally demonstrate a nonlinear vector autoregressor equalizer for 40 and 50 GBaud PAM-4 transmission with microring modulators and show that it outperforms both Volterra and reservoir computing-based equalizers in B2B and 2 km scenarios.
Widely Tunable Laser Based on Thin-film Lithium Niobate / III-V Hybrid Integration
Authors: Wang Shuxin , Wang Qi , Ma Rui , Lin Zhongjin , Cai Xinlun
Published: May 2024

We demonstrated a tunable laser based on thin-film lithium niobate and III-V hybrid integration, showcasing a tuning range over 41 nm, a maximum output power of 13.8 mW, and a linewidth of 9.42 KHz.
InP-based Optical Devices Integrated on Silicon Photonic Circuits
Authors: Okimoto Takuya , Fujiwara Naoki , Inoue Naoko , Hiratani Takuo , Kikuchi Takehiko , Mitarai Takuya , Kurokawa Munetaka , Tanaka Hajime , Fujikata Hidenari , Watanabe Tohma , Nitta Toshiyuki , Nishiyama Nobuhiko , Yagi Hideki
Published: May 2024

We review our III-V/Si hybrid integration platform using chip-on-wafer direct bonding technique and the performance of hybrid lasers with InP-based gain regions on Si photonic circuits.
Energy-efficient Spiking Neural Network Equalization for IM/DD Systems with Optimized Neural Encoding
Authors: von Bank Alexander , Edelmann Eike-Manuel , Schmalen Laurent
Published: May 2024

We propose an energy-efficient equalizer for IM/DD systems based on spiking neural networks. We optimize a neural spike encoding that boosts the equalizer’s performance while decreasing energy consumption.
Providing Anomalous Behaviour Profiling by extending SmartNIC Transceiver support in Packet-Optical Networks
Authors: Vilalta R. , Vílchez F. J. , Gifre Ll. , Manso C. , Carcel-Cervera J.L. , Leira R. , Aracil-Rico J. , Fernández-Palacios J.P. , Martínez R. , Casellas R. , Muñoz R.
Published: May 2024

This paper presents the architectural and data model extensions necessary to provide support for SmartNICs from SDN controller perspective. It later presents a use case for providing anomalous behaviour profiling support using the proposed extensions.
Flexible Optical Metro-access Networks leveraging SOA-based OADM Nodes and DSCM with Power Loading
Authors: Hu Zhouyi , Xia Shiyi , Santana Henrique Freire , Rombouts Marijn , Shi Bin , Calabretta Nicola
Published: May 2024

We demonstrate a flexible metro-access network exploiting SOA-based OADM nodes and digital subcarrier multiplexing with power loading. Results show that at least 4 nodes can be supported for 40-Gb/s transmission with bandwidth allocation on demand.
Polarization-insensitive, silicon-photonics circuit, four-mode spatial multiplexer matched to a rectangular core fiber
Authors: Halfon David , Rechtman Lior , Kukin Aleksey , Stone Jeffery S. , Peng Gaozhu , Li Ming-Jun , Marom Dan M.
Published: May 2024

We design and test a SiPh mode multiplexer circuit, utilizing 3µm-thick ridge waveguides having low polarization dependence. The multiplexer achieves low loss (2-3dB) and low PDL (<0.8dB) across the C-band. Output modes are coupled to rectangular core fiber.
High-Precision Frequency Difference Locking System for Up/Downstream Lasers with 30 nm Interval in Next Generation Coherent PON
Authors: Chen Zifeng , Lou Jiajun , Zhang Yuanhao , Chen Quanan , Liu Can , Xia Juan , Lu Qiaoyin , Guo Weihua
Published: May 2024

We demonstrated a high-precision frequency locking system based on asymmetric Mach-Zehnder interferometer (AMZI). The 1526 nm upstream laser realized a frequency difference stability of about 30 nm ± 25 MHz with 1556 nm downstream laser.
Broadband, Efficient, and Low Dark Current SiN-on-SOI Waveguide-Coupled Photodetectors for Visible Light
Authors: Govdeli Alperen , Mikkelsen Jared C. , Suriya Abhishek , Chua Hongyao , Lo Guo-Qiang , Poon Joyce K. S. , Sacher Wesley D.
Published: May 2024

We demonstrate foundry-fabricated waveguide-coupled photodetectors wherein silicon nitride waveguides pass overtop doped silicon-on-insulator patches. At a 5V reverse bias, dark currents < 8pA, and red, green, and blue-wavelength external quantum efficiencies >70% were measured.
Optimization of channel powers, Raman pumps and EDFAs in the wideband fiber optic transmission systems
Authors: Ivanov Viacheslav V. , Galdino Lidia , Downie John D.
Published: May 2024

A hybrid Raman/EDFA link design optimization method to maximize fiber capacity is proposed. The optimization method accounts for the interplay of signal power tilts due to channels ISRS, pump ISRS, and EDFA physics.
Experimental Demonstration of 51.2 Tb/s Self-Homodyne Coherent Interconnects on a 3D Photonic Chip Inspiring Coherent Technology Transfer to Centimeter-Scale Ultra-Short-Reach Applications
Authors: Yang Min , Cai Chengkun , Wang Kangrui , Yan Guofeng , Zheng Shuo , Wan Zhenyu , Zhu Yanjun , Zhang Hua , Yao Chaonan , Shao Yuchen , Wang Jian
Published: May 2024

We demonstrated a record net 51.2 Tb/s (800Gb/s PDM-64QAM x 64 Channels) ultrafast laser inscribed 3D photonic chip interconnects based on self-homodyne coherent detection, showing the feasibility of coherent technology transfer to ultra-short-reach applications.
Large-range and Seamless Rate-Adaptive Free-Space Optical System Based on Rate Compatible Modulation
Authors: Zou Yang , Shu Tao , Fan Qirun , Mei Tianjin , Chang Xinyu , Zhang Shenmao , Dai Xiaoxiao , Liu Chen , Cheng Mengfan , Deng Lei , Yang Qi , Liu Deming
Published: May 2024

A large-range and seamless rate-adaptive FSO scheme based on rate compatible modulation is proposed. Experimental results show that it can adaptively vary the rate from 6.7Gbps to 53.6Gbps within ~15 dB received optical power range.
Si-SiN-SiN Tri-Layer Strictly Non-blocking 8×8 Microring-Based Optical Switch
Authors: Sun Bohao , Zhang Ziyao , Chen Minjia , Yao Chunhui , Bao Peng , Shi Zhitian , Cheng Qixiang , Bergman Keren , Penty Richard
Published: May 2024

We report a Si-SiN-SiN tri-layer switch-and-select 8×8 optical switch with 128 thermally-driven microring-resonators. Crosstalk ratio and on-chip loss are measured in the range of -33.2 to -50.8dB and 2.1 to 10.5dB, respectively, with >70GHz passband.
Low-Complexity Multi-tap ET-DFE-PU for Soft-Input FEC in High-Speed IM/DD systems
Authors: Zhao Xue , Zhou Jiahao , Zhang Jing , Wang Rui , Ma Zhengyu , Hu Shaohua , Xu Bo , Qiu Kun
Published: May 2024

We propose a low-complexity multi-tap LUT-based ET-DFE-PU algorithm to alleviate the degradation on LLR by error propagation. The experimental results show that the proposed algorithm can achieve 3.4-dB receiver sensitivity improvement compared with conventional DFE.
Photon-counting single-pixel 3D imaging using a multimode-fiber-coupled fractal SNSPD
Authors: Zou Kai , Meng Yun , Hao Zifan , Hu Xiaolong
Published: May 2024

We demonstrate photon-counting single-pixel 3D imaging using a multimode-fiber-coupled fractal SNSPD and showcase 32 × 32-pixel imaging with reflectance and depth contrasts at the wavelength of 1560 nm.
Data Labeling Using Unsupervised Cascaded Pre-training with Fused Multi-port Data for Optical Failure Management
Authors: Yang Weijie , Zhang Chunyu , Wang Danshi , Zhu Hong , Xu Xinxing , Shi Degang , Zhang Min
Published: May 2024

We propose an unsupervised cascaded pre-training data labeling method that considers the intrinsic correlation of multi-port data, and verifies the scheme validity in failure prediction using real multi-port data from optical networks.
Ultra-Thin Bottom-Emission VCSEL-Based Optoelectronic Flexible Printed Circuit Module for High-Speed Transmission
Authors: Khan Zuhaib , Hong Chung-Yu , Hsieh Ming-Che , Wu Chun-I , Lin Long-Yi , Chen Chun-Chieh , Cheng David
Published: May 2024

Innovative integration of back emission VCSEL-based optoelectronic module with optical waveguide achieves remarkable 50Gbps PAM4 optical and 25Gbps NRZ electrical transmission speeds. An ultrathin USB3.2 type C optoelectronic module with 0.2mm thickness has been realized.
Identification of optical links with heterogenous fiber types in a production network
Authors: Seve Emmanuel , Bigo Sebastien , Layec Patricia
Published: May 2024

We develop a technique to identify fiber type within heterogeneous network links using correlation between lightpath accumulated dispersions. We successfully identified fiber types from real data issued from a continental-size production network running live.
Monolithic Integration of Silicon Quantum Photonics and Electronics in a 45nm SOI CMOS Foundry Platform
Authors: Kramnik Danielius , Wang Imbert , Fargas Cabanillas Josep M. , Ramesh Anirudh , Gluhović Ðorđe , Buchbinder Sidney , Zarkos Panagiotis , Adamopoulos Christos , Kumar Prem , Popović Miloš A. , Stojanović Vladimir M.
Published: May 2024

Silicon photonics can enable useful quantum information processing, but scaling the interface to calibration and control circuits remains challenging. We monolithically integrate quantum photonics with electronics in a standard CMOS foundry to address this issue.
Digital Coherent Receiver Based Optical Performance Monitoring Technology and its Application to Photonics Tomography
Authors: Oda Shoichiro , Shinzaki Ryu , Eto Motohiko , Tajima Kazuyuki , Sone Kyosuke , Yoshida Setsuo , Kim Inwoong , Vassilieva Olga , Palacharla Paparao , Hoshida Takeshi
Published: May 2024

Digital-coherent-receiver-based fiber-longitudinal power profile estimation (PPE) over multiple spans is presented. We then review three specific examples of applications of photonics tomography based on PPE and discuss the comparison between hardware and software implementation.
FPGA Prototyping of CCDM with On-line Configurable Probabilistic Distribution Based on Parallel Arithmetic Coding
Authors: Song Jingwei , Li Yan , Jia Xiaoshuo , Liu Zulin , Xu Kejia , Qiu Jifang , Guo Hongxiang , Hong Xiaobin , Yang Zhisheng , Wu Jian
Published: May 2024

The real-time CCDM and inverse CCDM were realized in an FPGA. The DM and inverse DM achieved a throughput of 16.8GBaud and supported on-line reconfiguration to realize different entropies with fine granularity.
Compensation of FEC induced Distribution Distortion based on Distribution Detuning in a 36-Tb/s (45×800-Gb/s) 2100-km Polar Coded PS-64QAM system
Authors: Jia Xiaoshuo , Li Yan , Song Jingwei , Luo Ming , Yang Chao , He Qingyu , Zhang Xu , Chen Daigao , Zhang Hongguang , Xiao Xi , Hong Xiaobin , Guo Hongxiang , Yang Zhisheng , Qiu Jifang , Wu Jian
Published: May 2024

In this paper, a detuned distribution enabled polar coded probabilistic shaped 64-QAM is proposed and experimentally investigated over a 36-Tb/s (45×800-Gb/s) 2100-km transmission system at the spectral efficiency of 8-bit/s/Hz.
Optimization of iterative Chase soft decoder based on cross entropy minimization
Authors: Yamazaki Etsushi , Sugiura Shinya
Published: May 2024

We propose a scheme to optimize the parameters of iterative Chase decoder. Minimizing the cross entropy loss of the final stage Chase decoder output in the form of log-likelihood ratio improves turbo product code performance.
U-band WDM Transmission over 90-km Deployed Fiber-optic Cable Leveraged by S+C+L-band WDM Channels
Authors: Kato Tomoyuki , Beppu Shohei , Soma Daiki , Muranaka Hidenobu , Okada Shun , Irie Hiroyuki , Wakayama Yuta , Yoshikane Noboru , Tsuritani Takehiro , Tanaka Yu , Hoshida Takeshi
Published: May 2024

We present SRS-assisted reach extension of U-band WDM transmission in deployed fiber-optic cable. It is verified that U-band channels benefit from the reduction of span loss in 90-km transmission co-propagating with S+C+L-band WDM channels.
Circularly-Polarized Self-Homodyne Free-Space Optical Communication using Partial Stokes-Vector Receiver
Authors: Ishimura Shota , Takahashi Hidenori , Soma Go , Komatsu Kento , Tanemura Takuo , Tsuritani Takehiro , Suzuki Masatoshi
Published: May 2024

We propose a circularly-polarized self-homodyne free-space optical (FSO) system using a partial Stokes-vector receiver (SVR) that enables polarization rotation-independent coherent signal reception. The advantage over the standard SVR is verified through a 100-Gbps FSO experiment.
Connecting Switch to Fiber: The Energy Efficiency Challenge
Authors: Tonietto Davide
Published: May 2024

Pressure for energy efficiency in distributed computing systems has put in sharp focus ASIC to fiber efficiency as an area needing improvement. What are the origin of the problem and the possible solutions?
Multi-Core Fiber Backscattered Crosstalk Statistical Distribution Model
Authors: Zakharian Aramais , Li Ming-Jun
Published: May 2024

Inter-core crosstalk statistical distribution due to Rayleigh backscattering is analyzed for bi-directional transmission in multi-core fibers. The counter-propagating crosstalk distribution is shown to be consistent with a chi-squared statistics with eight degrees of freedom.
Tunable intrinsic strong light–matter coupling in transition metal dichalcogenide nanoresonators
Authors: Ding Qi , Zhang Ruiyang , Bao Wenrui , Xie Peng , Yue Ling , Shen Shiyu , Zhang Hong , Wang Wei
Published: May 2024

Self-hybridizing structures based on transition metal dichalcogenides (TMDCs) are becoming promising candidates for the study of an intrinsic strong light–matter coupling because of the efficient mode overlap with much simplified geometries. However, realizing flexible tuning of intrinsic strong coupling in such TMDC-based structures is still challenging. Here, we propose a strategy for flexible tuning of the intrinsic strong light–matter coupling based on a bulk TMDC material. We report the first demonstration of the strong coupling of intrinsic excitons to whispering gallery modes (WGMs) supported by an all-TMDC nanocavity. Importantly, by simply controlling angles of incidence, a selective excitation of WGMs and an anapole can be realized, which enables a direct modulation of self-hybridized interactions from a bright WGM–exciton coupling to a dark anapole–exciton coupling. Our work is expected to provide unique opportunities for engineering a strong light–matter coupling and to open exciting avenues for highly integrated novel nanophotonic devices.
Older patients’ perspectives on the therapeutic relationship with young psychotherapists
Authors: Boschann Annika , Staats Hermann , Wiegand-Grefe Silke
Published: May 2024

The current demographic change means that young psychotherapists and older patients will increasingly come into contact. Unique for this constellation is the intergenerational therapeutic relationship, which forms the basis of psychotherapy, but has not yet been the focus of empirical research. This qualitative study provides preliminary insights into how older patients (aged over 65) experience and perceive the therapeutic relationship with young psychotherapists (aged in their mid-20s to mid-30s). We conducted semi-structured interviews with twelve older patients (8 women, 4 men) and analysed their data using the grounded theory approach. We found a connection between the type of transference a participant demonstrated and their biographical as well as social experiences, desires, and fantasies. Overall, a tendency to seek harmony was observed among the participants, which was reflected in their behaviour towards young psychotherapists: (a) conflict avoidance, (b) (fantasised) therapy discontinuation, (c) adaption/subordination, and (d) solidarity, support, and protection. Our findings demonstrated that various intergenerational transference phenomena, including the roles in which young therapists are perceived, are associated with certain particularities and challenges, such as the topic of sexuality. It can be valuable for young psychotherapists to become aware of a potential role reversal that may result in older patients trying to support them.
Evaluating and redesigning the teaching practices of the Kazakh Mythology- engraving techniques
Authors: Baigutov Karim , Ibragimov Aman , Gadilbek Kh. Alzhanov , Muratayev Kumarkan , Iskakov Taiyrzhan , Miyat Dzhanaev
Published: May 2024

The study was designed to explore and develop art students’ interest and engagement in Kazakh mythology and using engraving techniques. The archetypic and challenges of Kazakh mythology in art students were not previously explored. Therefore, the need for study in this domain was essential to cover the gap in the literature. The gap has been recently discovered by Kazakh scholars although it has been explored by foreign authors but the authenticity of such studies remains a question. The study was experimental and the results show a strong association between art’s student’s engagement with Kazakh mythology using engraving techniques. Moreover, the elective course was selected by 90% class of the art students voluntarily. The teaching method developed for the study provides strong results and the outcome of the experiment was well above 80%. The study used a systematic method along with comparative analysis based on Kazakh myths, culture, ethnology, folklore, mythology, and archeology.
Increased scalability and sequencing quality of an epigenetic age prediction assay
Authors: Mayne Benjamin , Chandler David , Noune Christopher , Espinoza Thomas , Roberts David , Anderson Chloe , Berry Oliver
Published: May 2024

Epigenetic ageing in a human context, has been used to better understand the relationship between age and factors such as lifestyle and genetics. In an ecological setting, it has been used to predict the age of individual animals for wildlife management. Despite the importance of epigenetic ageing in a range of research fields, the assays to measure epigenetic ageing are either expensive on a large scale or complex. In this study, we aimed to improve the efficiency and sequencing quality of an existing epigenetic ageing assay for the Australian Lungfish (Neoceratodus forsteri). We used an enzyme-based alternative to bisulfite conversion to reduce DNA fragmentation and evaluated its performance relative to bisulfite conversion. We found the sequencing quality to be 12% higher with the enzymatic alternative compared to bisulfite treatment (p-value < 0.01). This new enzymatic based approach, although currently double the cost of bisulfite treatment can increases the throughput and sequencing quality. We envisage this assay setup being adopted increasingly as the scope and scale of epigenetic ageing research continues to grow.
An experimental study on the influence of healthy physical education curriculum model on sports ability of Chinese senior high school students
Authors: Dai Shengting , Qiu Qian , Zhang Yuancai , Yan Jingfei , Yin Rongbin
Published: May 2024

In recent years, the growing incidence of health issues among Chinese students, including obesity, diabetes, and other chronic diseases, has been attributed to a sedentary lifestyle, lack of physical activity, and unhealthy eating habits. Physical education (PE) classes play a crucial role in promoting physical activity and fostering healthy lifestyles among Chinese students. The purpose of this study was to investigate the influence of the healthy PE curriculum model on the sports ability of senior high school students in China. The trial adopted a quasi-experimental design with equivalent groups. The experimental group followed the healthy PE curriculum model in their PE classes, while the control group received traditional technical instruction. During the 12-week intervention, 149 senior high school students completed the sports ability test as both the pre-test and post-test measurements for this experimental study. The results indicated that the experimental group showed significant improvements in sports ability compared to the control group, highlighting the positive effects of the healthy PE curriculum model. The structural characteristics of the healthy PE curriculum model provided essential support for students’ learning and proved to be an effective way to promote physical literacy among senior high school students in China.
Association of enterolactone with blood pressure and hypertension risk in NHANES
Authors: Weiner Cynthia M. , Khan Shannon E. , Leong Caleb , Ranadive Sushant M. , Campbell Sara C. , Howard Jeffrey T. , Heffernan Kevin S.
Published: May 2024

The gut microbiome may affect overall cardiometabolic health. Enterolactone is an enterolignan reflective of dietary lignan intake and gut microbiota composition and diversity that can be measured in the urine. The purpose of this study was to examine the association between urinary enterolactone concentration as a reflection of gut health and blood pressure/risk of hypertension in a large representative sample from the US population. This analysis was conducted using data from the National Health and Nutrition Examination Survey (NHANES) collected from January 1999 through December 2010. Variables of interest included participant characteristics (including demographic, anthropometric and social/environmental factors), resting blood pressure and hypertension history, and urinary enterolactone concentration. 10,637 participants (45 years (SE = 0.3), 51.7% (SE = 0.6%) were female) were included in analyses. In multivariable models adjusted for demographic, socioeconomic and behavioral/environmental covariates, each one-unit change in log-transformed increase in enterolactone was associated with a 0.738 point (95% CI: -0.946, -0.529; p<0.001) decrease in systolic blood pressure and a 0.407 point (95% CI: -0.575, -0.239; p<0.001) decrease in diastolic blood pressure. Moreover, in fully adjusted models, each one-unit change in log-transformed enterolactone was associated with 8.2% lower odds of hypertension (OR = 0.918; 95% CI: 0.892, 0.944; p<0.001). Urinary enterolactone, an indicator of gut microbiome health, is inversely associated with blood pressure and hypertension risk in a nationally representative sample of U.S. adults.
High-precision tracking and positioning for monitoring Holstein cattle
Authors: Luo Wei , Zhang Guoqing , Yuan Quanbo , Zhao Yongxiang , Chen Hongce , Zhou Jingjie , Meng Zhaopeng , Wang Fulong , Li Lin , Liu Jiandong , Wang Guanwu , Wang Penggang , Yu Zhongde
Published: May 2024

Enhanced animal welfare has emerged as a pivotal element in contemporary precision animal husbandry, with bovine monitoring constituting a significant facet of precision agriculture. The evolution of intelligent agriculture in recent years has significantly facilitated the integration of drone flight monitoring tools and innovative systems, leveraging deep learning to interpret bovine behavior. Smart drones, outfitted with monitoring systems, have evolved into viable solutions for wildlife protection and monitoring as well as animal husbandry. Nevertheless, challenges arise under actual and multifaceted ranch conditions, where scale alterations, unpredictable movements, and occlusions invariably influence the accurate tracking of unmanned aerial vehicles (UAVs). To address these challenges, this manuscript proposes a tracking algorithm based on deep learning, adhering to the Joint Detection Tracking (JDT) paradigm established by the CenterTrack algorithm. This algorithm is designed to satisfy the requirements of multi-objective tracking in intricate practical scenarios. In comparison with several preeminent tracking algorithms, the proposed Multi-Object Tracking (MOT) algorithm demonstrates superior performance in Multiple Object Tracking Accuracy (MOTA), Multiple Object Tracking Precision (MOTP), and IDF1. Additionally, it exhibits enhanced efficiency in managing Identity Switches (ID), False Positives (FP), and False Negatives (FN). This algorithm proficiently mitigates the inherent challenges of MOT in complex, livestock-dense scenarios.
Covid-19 vaccine uptake and its associated factors among adult population in Dangila district, Awi Zone, Northwest Ethiopia: A mixed method study
Authors: Wassie Girma Tadesse , Ambelie Yeshambel Agumas , Adebabay Tsion , Yeshiwas Almaw Genet , Fenta Eneyew Talie , Abebe Endeshaw Chekol , Wassie Gizachew Tadesse , Adella Getachew Asmare , Anley Denekew Tenaw
Published: May 2024

Introduction

Vaccination is the most cost-effective approach that significantly reduces morbidity and mortality related to Coronavirus disease -19 (COVID-19). Nevertheless, there is a lack of information on the COVID-19 vaccine uptake and related factors in Ethiopia including the research area.

Objective

To assess COVID-19 vaccine uptake and its associated factors among adult population in Dangila District, Awi Zone, Northwest Ethiopia, 2023.

Methods

A community-based mixed-type study design was conducted from Oct, 15-Nov 15/2022. The study population was chosen using the multistage stratified random sampling technique for the quantitative study and the purposive sampling method for the qualitative inquiry. The collected data were managed and analyzed using SPSS version 25. Bivariable and multivariable logistic regressions were employed to identify factors associated with vaccine uptakes. In the qualitative part of the study, key informant interview was applied. After the interview was listened, the transcripts were coded and categorized into themes, and analyzed using Atlas.ti 7 software. Finally, the finding was triangulated with the quantitative results.

Result

The vaccine uptake among the adult population was found to be 47% (95% CL: 42.7%, 51.0%). History of having test for COVID-19 (AOR: 1.70, 95% CI: 1.02, 2.84), good knowledge about COVID-19 vaccine (AOR; 3.12, 95% CI; 2.11, 4.59), no formal education (AOR: 1.78, 95%: 1.26, 2.58), good attitude (AOR: 3.21, 95% CI: 2.13, 4.89), being in poor Income category (AOR: 1.83, 95% CI: 1.08, 3.06), being female (AOR: 1.75, 95% CI: 1.2, 2.58) and living in rural area (AOR: 3.1, 95% CI: 1.87, 5.12) were significantly associated with vaccine uptake rate. The study also identified that misperceptions about the vaccine efficacy and safety, availability of vaccine, lack of knowledge about the vaccine, mistrust of the corona virus vaccine, fear of adverse effects, social media influence and religious beliefs were found to be barriers of COVID -19 vaccine uptake.

Conclusion

In the Dangila district, adult population vaccination uptake for COVID-19 was comparatively low. To raise the rate of vaccination uptake, interventions must focus on the identified modifiable factors.