bluuebunny/crossref_metadata_2025 huggingface dataset:
Quasi-stationary hydrodynamics in high repetition rate filamentation
Authors: Löscher Robin , Kesim Denizhan K. , Schroeder Malte C. , Saraceno Clara J. , Moreno Victor , Wolf Jean-Pierre , Adamou Dionysis , Clerici Matteo
Published: May 2024

We present the first experiments and characterization of filamentation at high energy and high repetition rates (≥ 10 kHz), showing a quasi-stationary depletion offering improved electric discharge triggering and guidelines for future laser filamentation research.
High-average Power, Soft X-ray Generation Driver at 2.1 μm
Authors: Maksimenka Raman , Pinoteau Thomas , Forget Nicolas , Walke Daniel , Gores Florian , Wilkinson Iain
Published: May 2024

We present a high-average power OPCPA system that produces CEP-stable, few-cycle pulses centered at 2.1 μm. The system was built at the Helmholtz-Zentrum Berlin and serves as a driver for a table-top, coherent, ultrashort-pulse soft X-ray source.
Coherent combination of large-scale high-energy Nd:glass laser amplifiers
Authors: Lebegue P. , De Sousa J. , Rapeneau C. , Badarau D. , Andrieu J. , Audebert P. , Druon F. , Papadopoulos D. N.
Published: May 2024

We present, for the first time, coherent beam combination of 10 Joules nanosecond pulses in a Sagnac-interferometer configuration including large-diameter Nd:glass amplifiers. Efficiency over 90 % is demonstrated while maintaining good stability between shots.
Gas-Based Sono-Photonics Demonstrated via 20 GW-Scale Laser Pulse Deflection
Authors: Schrödel Yannick , Stawska Hanna , Dörsam Jan Helge , Hartmann Claas , Zheng Jiaan , Lang Tino , Steudel Max , Rutsch Matthias , Salman Sarper H. , Schuster Regina , Ilhan Murat-Jakub , Kellert Martin , Pergament Mikhail , Hahn-Jose Thomas , Suppelt Sven , Leemans Wim P. , Käartner Franz X. , Hartl Ingmar , Harth Anne , Kupnik Mario , Heyl Christoph M.
Published: May 2024

We employ intense ultrasound fields in ambient air, enabling light control in extreme parameter ranges. We acousto-optically modulate 1030 nm ultrashort pulses with 20 GW peak power efficiently (> 50%), paving the way toward novel gas-based light control methods.
Design and Implementation of a >25 TW Dual-Channel OPCPA System
Authors: Balčiūnas Ignas , Juodagalvis Tomas , Girdauskas Vytenis , Budriūnas Rimantas , Maslinskas Valdas , Stanislauskas Tomas
Published: May 2024

We present a dual-output Optical Parametric Chirped Pulse Amplification (OPCPA) system, capable of operating simultaneously at 100 Hz and 10 Hz repetition rates, generating independent output channels of 6 TW and 26 TW, respectively. The system incorporates an effective carrier-envelope phase (CEP) stabilization approach by combining passively stabilized seed pulses with feedback, achieving 251 mrad CEP stability exceptional for a NIR, multi-TW system.
High repetition rate Joule class TiSa laser for laser plasma acceleration
Authors: Chalus O. , Pellegrina A. , Jeandet A. , Lavenu L. , Larmonnier P. , Simon-Boisson C. , Besaucèle H. , Vernier A. , Flacco A. , Faure J.
Published: May 2024

Particle flux is not enough for societal applications when using TW/PW class lasers to generate high energy electron. To overcome this, we have developed a 100 Hz Joule class TiSa laser and report initial results.
Intense Few-Cycle Light Transients from the Terahertz to the Visible Domain Empowered by Hollow-Core Fibers
Authors: Piccoli Riccardo , Jeong Young-Gyun , Zanotto Luca , Morandotti Roberto , Schmidt Bruno E. , Razzari Luca
Published: May 2024

Starting from ~50-cycle-long pulses at 1035 nm, we show how gas-filled hollow-core fibers facilitate the generation of intense few-cycle light transients from the terahertz to the visible domain.
Compact Generation of Isolated Attosecond Pulses Driven by Self-compressed Sub-cycle Waveforms
Authors: Galán M. F. , Serrano J. , Jarque E. C. , Borrego-Varillas R. , Lucchini M. , Reduzzi M. , Nisoli M. , Brahms C. , Travers J. C. , Hernández-García C. , Roman J. San
Published: May 2024

We theoretically demonstrate a compact and robust scheme for the direct generation of extreme-ultraviolet isolated attosecond pulses from high-order harmonics driven by self-compressed sub-cycle waveforms produced in a gas-filled hollow capillary fiber.
Photoelectron spectroscopy with synthetically chiral laser pulses
Authors: Dube Zack , Katsoulis Giorgios P. , Wang Tian , Mi Yonghao , Burden Philippe G. , Naumov Andrei Yu. , Villeneuve David M. , Corkum Paul B. , Emmanouilidou Agapi , Staudte André
Published: May 2024

We report on experiments to detect molecular chirality using strong-field photoelectron spectroscopy. Gas-phase propylene oxide molecules were subjected to intense, femtosecond laser pulses which were arranged to synthesize a locally chiral electric field.
High-intensity mid-IR OPA at 250 kHz for time- and angle-resolved photoemission spectroscopy at ALLS
Authors: Longa A. , Parent J.M. , Frimpong B. , Légaré F. , Jargot G. , Boschini F.
Published: May 2024

We have developed an OPA providing intense optical excitation in the infrared region (1.7 to 8 µm) that is used as a pump for time- and angle-resolved photoemission (TR-ARPES). Preliminary TR-ARPES results are presented.
Polarized Spectroscopy of Ho:CALGO for Ultrafast Lasers
Authors: Loiko Pavel , Eremeev Kirill , Liebald Christoph , Wesemann Volker , Schwung Sebastian , Peltz Mark , Rytz Daniel , Yao Weichao , Wang Yicheng , Tomilov Sergei , Camy Patrice , Saraceno Clara J. , Braud Alain
Published: May 2024

We report on the polarized spectroscopy of Ho3+-doped CALGO crystals in the spectral range of 2-3 μm, confirming observed trends in recent mode-locking experiments. The role of multiphonon-assisted processes is discussed.
Optical Feedback Controlled Harmonic States in Mid-Infrared Quantum Cascade Laser Frequency Combs
Authors: Huang Baichuan , Kosan Nicholas , Wysocki Gerard
Published: May 2024

An external cavity optical feedback is utilized to coherently control generation of high-order harmonic comb states in mid-infrared quantum cascade laser frequency combs with an improved coherence and up to two times broader spectral coverages.
Post-compression of 5 μm Pulses to 53 fs with millijoule Energy in ZnSe
Authors: Bock Martin , von Grafenstein Lorenz , Griebner Uwe
Published: May 2024

Compact nonlinear compression of few-cycle multi-mJ pulses at 4.9-μm is presented. Using ZnSe as nonlinear medium for spectral broadening of 95-fs pulses, a duration of 53 fs with 1.9 mJ energy is achieved after compression.
High-power Ultrashort Pulse LWIR Lasers and Applications
Authors: Tochitsky S. Ya.
Published: May 2024

Advent of high-power, picosecond CO2 lasers opened new avenues in nonlinear optics and particle acceleration. Development of CO2 amplifiers of 0.3-3 ps pulses in the 4-16 μm range at a GW-TW power level is discussed.
Intracavity-Pumped, Noncritical CdSe OPO at 100 Hz
Authors: Wang Li , Chen Weidong , Divliansky Ivan B. , Pasiskevicius Valdas , Mhibik Oussama , Moelster Kjell M. , Zukauskas Andrius , Glebov Leonid B. , Petrov Valentin
Published: May 2024

Spectral narrowing of the first stage signal wave in a cascade optical parametric oscillator using a Volume Bragg Grating produced narrowband ⁓0.6-mJ idler pulses near 9.26 μm from the second stage.
Single Frequency Fiber Laser Strain Sensors: Principles and Applications
Authors: Cranch Geoffrey A , Richardson Logan , Williams Caitlin , Miller Gary , Seeley Ryan , Hardester Evan
Published: May 2024

Single frequency fiber laser sensors achieve displacement resolutions approaching attometer levels, operating at the fundamental limit of performance. These devices have found applications in structural health monitoring, medical and undersea monitoring. This presentation will review the operating principles of these devices and discuss recent demonstrations.
Optical Fiber Tags Based on Encoded FBG Array
Authors: Xiao Xiangpeng , Zhao Weiliang , Liu Yibo , Ai Ke , Wang Peng , Deng Lei , Liu Chen , Yang Qi , Sun Qizhen , Yan Zhijun
Published: May 2024

We proposed an optical fiber tag for identifying the massive passive optical networks, which were encoded by the FBG array with 7 wavelengths and 5 intensity grades, and achieved 57 optical tag identification.
CW-WDM MSA compatible 100-mW (up to 50°C), 400-GHz spacing highly-reliable CW-DFB 8-channel laser array
Authors: Hatai Ryosuke , Nakahara Kouji , Nakamura Atsushi , Nakajima Takayuki , Kobayashi Yoshihiko , Kageyama Takeo , Tanaka Shigehisa
Published: May 2024

We demonstrate a CW-WDM MSA compatible 8-channel 400-GHz spacing 100-mW CW-DFB laser array, with uniform channel spacings (±100 GHz) from 20 to 75°C, small channel-to-channel power deviations (0.56 dB) and over 2000-hour-operation reliability at 80°C.
Beyond the Beachfront: Integration of Silicon Photonic I/Os under a High-Power ASIC
Authors: Sahni Subal , Abhyankar Abhijit , Aggarwal Ankur , Bamiedakis Nikos , Bekker Zoltan , Benromdhane Mohamed , Bergstein Nadav , Bos Ties , Davies Christopher , Gimlett Andrew , Han Xiaoping , Lee Kelin , Mahadevaiah Kavya , Ozguc Hakki , Park Kevin , Plunkett Jeremy , Ramachandra Sujit , Redgrave Jason , Singh Ajmer , Staffaroni Matteo , Totovic Angelina , Vats Saurabh , Winterbottom Phil , Woodhouse Darren , Younis Waleed , Yu Shifeng , Lazovsky David
Published: May 2024

We present a photonics platform targeting optical connectivity at the point of compute in high-power ASICs. The platform uses bias-controlled electro-absorption modulators and is differentiated by broad temperature stability coupled with high bandwidth density.
First Line-rate End-to-End Post-Quantum Encrypted Optical Fiber Link Using Data Processing Units (DPUs)
Authors: Aguilera A. Cano , Abu Bakar R. , Alhamed F. , Garcia C. Rubio , Imaña J.L. , Monroy I. Tafur , Cugini F. , Olmos J.J Vegas
Published: May 2024

We demonstrate the first 92.3-Gbits/s line-rate, end-to-end post-quantum cryptography optical fiber link based on HW accelerators and processing offloading.
Broadband Polarization Beam Splitter Rotator Using Only Silicon Nitride
Authors: Vanani Fatemeh Ghaedi , Fardoost Alireza , Li Guifang , Doerr Christopher
Published: May 2024

We designed and fabricated a CMOS-compatible polarization beam splitter and rotator purely in Si3N4, achieving experimentally an insertion loss of ~1.5dB and a polarization extinction ratio greater than 15dB from 1280 to 1320nm.
Dual-band polarization beam splitter based on cascaded multimode anti-symmetric apodized Bragg gratings
Authors: Cheng Guanglian , Yi Qiyuan , Shen Zengfan , Yan Zhiwei , Li Qiyuan , Xiong Xinzhe , Xu Fanglu , Zheng Shuang , Cui Shuai , Yu Yuan , Zou Yi , Sima Chaotan , Shen Li
Published: May 2024

We design and demonstrate a dual-band polarization beam splitter with insertion losses of 0.5/1.2dB and 3.1/1.1dB for TE/TM-polarizations at 1550 and 2000nm, respectively. The measured bandwidths for extinction ratio >20dB are ~115/100nm for 1.55/2μm waveband.
Scaling to 100 modes by exploiting topological confinement
Authors: Ashok V. , Greenberg A. P. , Ma Z. , Boegholm I. L. , Peng C. , Kristensen P. , Ramachandran S.
Published: May 2024

By conducting a systematic study of the phenomenon of topological confinement for light transport, we demonstrate a record of 100 unmixed modes over ~22m of fiber with average nearest-neighbor crosstalk of -36 dB.
Comparison of Polarization Rotations Caused by Fiber Bending in Single- and Multi-Mode-Fibers
Authors: Spenner Christian M. , Petermann Klaus , Krummrich Peter M.
Published: May 2024

We measure mode group resolved polarization rotations caused by fiber bending in a 10-mode-GI-Fiber. For the fundamental mode of the GI-Fiber, we observe faster rotations than predicted from simulations.
Mode Coupling in Optical Fibers
Authors: Palmieri Luca
Published: May 2024

Mode coupling plays a crucial role in spatial-division-multiplexed transmission systems. This paper review and explores new approaches to modelling and characterization of mode coupling in multicore and multimode fibers.
4-lambda LAN-WDM 1.6-Tb/s 2-km Transmission with Nonlinear Maximum Likelihood Sequence Estimation
Authors: Taniguchi H. , Nakamura M. , Hamaoka F. , Yamamoto S. , Miyamoto Y. , Yamazaki E.
Published: May 2024

We demonstrate, for the first time, a capacity of 1.6 Tb/s over 2 km of single-mode fiber on the O-band LAN-WDM grid with 4-lane 400-Gb/s/lane signals with 155-GBd PAM-8 signals enhanced by NL-MLSE.
Toward 200G per Lane VCSEL-based Multimode Links
Authors: Murty M.V. Ramana , Wang Jingyi , Jiang Sizhu , Dolfi David , Wang T.K. , Vaughan Derek , Feng Zheng-Wen , Leong Nelvin , Sridhara Aadi , Joyo Sumitro T. , Chu Jason , Giovane Laura
Published: May 2024

Progress in the development of multimode 850 nm VCSELs is demonstrated at 100 GBd PAM4 operation, and at 53.125 GBd PAM4 with transmission over 100 m of OM3 fiber. Continued advances will help introduce the next generation of multimode links.
Converged Inter/Intra All-Optical DC Network Externally Distributing Optical Carriers to Coherent Transceivers
Authors: Hamagami Ritsuki , Fujiwara Masamichi , Shibata Naotaka , Kaneko Shin , Kani Jun-ichi , Yoshida Tomoaki
Published: May 2024

We propose a DCN that directly connects server racks distributed among DCs through ROADM-based nodes. External light sources are introduced to coherent transceivers to avoid laser-diodes being operated under high temperature conditions on top-of-rack switches.
Toward 1.6T Low-Power Coherent DSP: Challenges, and Lessons Learned from Preceding Generations
Authors: Fan Shu Hao , Nguyen Ray L. , Lust Jose Luis Correa , Chien Hungchang , Wang Shih-Cheng
Published: May 2024

We review the progression of coherent DSP ASIC technology since 40nm silicon and identify the critical path toward beyond-terabit-per-wavelength pluggable modules. Challenges in various aspects of ASIC design and optical components are explored.
AMUX-based Bandwidth Tripler with Time-interleaved Nonlinear Digital Pre-distortion Enabling 216-GBd PS-PAM8 Signal
Authors: Nakamura Masanori , Nagatani Munehiko , Yamazaki Hiroshi , Jyo Teruo , Mutoh Miwa , Shiratori Yuta , Wakita Hitoshi , Taniguchi Hiroki , Yamamoto Shuto , Hamaoka Fukutaro , Kobayashi Takayuki , Takahashi Hiroyuki , Miyamoto Yutaka
Published: May 2024

We propose an analog filterless InP-DHBT AMUX-based bandwidth tripler with a time-interleaved nonlinear digital pre-distortion for tripler and optical frontend impairments, achieving a net-bitrate 496.9-Gb/s signal generation and 483.9-Gb/s 11-km transmission with single-carrier 216-GBd PS-PAM8.
467 Gbit/s Net Bitrate IM/DD Transmission Using 176 GBd PAM-8 Enabled by SiGe AMUX with Excellent Linearity
Authors: Hu Qian , Tannert Tobias , Grözing Markus , Raybon Gregory , Borkowski Robert , Buchali Fred , Chen Xi , Iannone Pat , Rademacher Georg , Ryf Roland
Published: May 2024

Using a SiGe analog multiplexer (AMUX) integrated circuit we generate a PAM-8 signal at 176 GBd by time-interleaving two 88 GBd tributaries. High-quality signal is obtained after interleaving thanks to the excellent linearity of the AMUX. We successfully demonstrate net bitrates up to 467 Gbit/s after 2 km fiber transmission.
Secure Architecture for Quantum Key Distribution Networks
Authors: Huttner Bruno
Published: May 2024

We present a new architecture, designed to improve security of QKD networks. The Trusted Nodes are divided into Core Nodes, which XOR the keys from various QKD devices, and Edge Nodes, connected to key users.
Homebrew: Optical Polarization Change Detection for Ground Motion Sensing
Authors: Catudal Joseph , Zhou Zhenhao , Pan Weijun , Barford Paul , Fratta Dante , Wang Herb
Published: May 2024

We examine laser light polarization measurements using our own novel polarimeter design for ground motion sensing and show that efficacy is highly dependent on the coupling of fiber routes to vibration sources.
High-Power Micro-Ring Modulator and Multi-Channel Coupled Ring Resonator for WDM Design on a 300-mm Monolithic Foundry Platform
Authors: Liu Qidi , Aboketaf Abdelsalam , Pal Shantanu , Mosleh Salman , Banihashemian Seyedeh Fahimeh , Pavadai Sakthivel , Lee Jui-Chu , Bian Yusheng , Gong Ming , Orner Bradley , Wemple Colleen , Todorov Petar Ivanov , Dezfulian Kevin K. , Rakowski Michal , Lee Won Suk , Hirokawa Takako , Chandran Sujith , Hedges Crystal , Pavlik Frank , Charles Pike , Chatterjee Avijit , Nandi Riddhi , Giewont Ken , Sorbara Massimo , Nummy Karen , Patel Jignesh , Morgan Clifford , O'Malley Gregory , Anderson Frederick G
Published: May 2024

We present scaled, bidirectional silicon photonic ring modulator and multi-channel coupled ring resonator models, offering advanced simulation capabilities for high-power and thermal time constant analysis, facilitating comprehensive on-chip EO system design with GlobalFoundries PDK.
Towards Tbps Single-λ Interconnect by a Multimode Integrated Optical I/O on Silicon for Few-Mode Fibers
Authors: Chen Hao , Zhou Wu , Tong Yeyu
Published: May 2024

A six-channel multimode integrated optical I/O supporting two orthogonal polarizations of LP01, LP11a, and LP11b modes in a few-mode fiber was experimentally demonstrated, showing chip-to-fiber coupling efficiencies > –6.1dB for future Tbps-per-wavelength optical interconnects.
Feedback tolerant quantum dot lasers integrated with 300mm silicon photonics
Authors: Huang Duanni , Yerkes Shane , Su Guan-Lin , Mehta Karan , Cramer Marcus , O’Brien William , Dehghannasiri Razi , Dobek Stan , Mackos Chelsea , Ward Timothy , Patel Pari , Kumar Ranjeet , Liu Songtao , Wu Xinru , Wang Xiaoxi , Gao Junyi , Isenberger Mark , Frish Harel , Rong Haisheng
Published: May 2024

We demonstrate the first quantum dot lasers integrated with 300mm silicon photonics. The measured devices show a linewidth enhancement factor near zero and are resilient to optical feedback up to -16dB of back reflection.
On-chip InP/LiNbO3 microcomb laser
Authors: Ling Jingwei , Gao Zhengdong , Xue Shixin , Hu Qili , Zhang Kaibo , Javid Usman , Lopez-Rios Raymond , Staffa Jeremy , Lin Qiang
Published: May 2024

We report a chip-scale InP/LiNbO3 laser that directly emits mode-locked microcomb on demand, with spectral bandwidth ~50 nm, individual comb linewidth ~600 Hz, frequency tuning rate > 2.4 × 1017 Hz/s, and 100% utilization of optical power for comb generation.
6.48 Tb/s Transmissions Using 50 GHz Integrated Lithium Niobate Flat-Top Electro-Optic Combs
Authors: Xu Chuang , Chen Yikun , Zhong Kangping , Zhang Ke , Lu Chao , Wang Cheng , Lau Alan Pak Tao
Published: May 2024

We demonstrate 6.48 Tb/s transmission using 50-GHz integrated lithium niobate flat-top electro-optic (EO) combs over a 53-km field-deployed link and show their flexibility in generating combs with variable frequency spacing and using multiple laser sources.
No-guard-band integration of digital coherent CV-QKD system into 400 Gbit/s 75 GHz grid DWDM systems
Authors: Kawakami Tetsuo , Kawahara Hiroki , Okamura Toshihiko , Yoshino Ken-ichiro , Maeda Wakako
Published: May 2024

We demonstrated no-guard-band integration of a digital coherent Continuous-variable QKD system into OpenZR+-compliant DWDM transmission systems. The estimated secret key rate was 19.9 kbit/s over a 75 km EDFA amplified SMF link.
Composable finite size key generation in a polarization diverse continuous variable quantum key distribution system
Authors: Chin Hou-Man , Andersen Ulrik L. , Gehring Tobias
Published: May 2024

We report on a polarization diverse continuous variable quantum key distribution system. Composable finite size key generation was assessed using 7.6×108 quantum states measured over 20 random states of polarization, secret key generation was achieved with 2 × 107 states.
Monitoring Data Augmentation of Spectral Information using VAE and GAN for Soft-Failure Identification
Authors: Kruse Lars E. , Kühl Sebastian , Dochhan Annika , Pachnicke Stephan
Published: May 2024

We propose data augmentation of monitoring information using VAE and GAN to reduce the amount of required soft-failure training data. Results show that only 5 samples per failure type are needed for F1-scores above 0.9.
Spectrum Resolved SNR Monitoring of In-Service Channel
Authors: Guo Qingyi , Tang Xuefeng , Lan Yang , Jiang Zhiping
Published: May 2024

We propose and experimentally demonstrate a novel scheme to monitor the spectrum resolved SNR with receiver ADC buffer data. SNR accuracy of 0.2dB can be achieved, and filtering impact can be separated from link noise.
Live Demonstration of Autonomous Link-Capacity Adjustment in Optical Metro-Aggregation Networks
Authors: Balanici Mihail , Safari Pooyan , Shariati Behnam , Jafari Aydin , Fischer Johannes Karl , Freund Ronald
Published: May 2024

We demonstrate a real-time ML-assisted network automation pipeline for dynamic, autonomous link-capacity allocation based on traffic-flow forecasting for optical metro aggregation networks. Its performance is compared to that of a classic, static bandwidth provisioning scheme.
Toward large-scale nonvolatile electrical programmable photonics with deterministic multilevel operation
Authors: Chen Rui , Tara Virat , Duta Jayita , Choi Minho , Sim Justin , Ye Julian , Zheng Jiajiu , Fang Zhuoran , Majumdar Arka
Published: May 2024

We present a deterministic multi-level scheme by electrically controlling multiple phase-change material (PCM) Sb2S3 segments through individual PIN heaters. PCMs are integrated on 300-mm silicon photonic fab dies back-end-of-line, promising for fast-prototyping and massive production.
Large-Scale Optical Phased Array Based on a Multi-Layer Silicon-Nitride-on-Silicon Photonic Platform
Authors: Lu Liangjun , Xu Weihan , Guo Yuyao , Liu Chuxin , Chen Jianping , Zhou Linjie
Published: May 2024

We review our recent progress on a chip-scale LiDAR transmitter on a multi-layer Si3N4-on-Si photonic platform. Experimental results show the high optical power budget of the chip and the feasibility for FMCW ranging.
Common cavity waveguide coil-resonator stabilized hybrid integrated WDM laser with 89 Hz integral linewidth
Authors: Liu Kaikai , Idjadi Mohamad Hossein , Grillanda Stefano , Kim Kwangwoong , Bolle Cristian , Cappuzzo Mark , Kopf Rose , Fontaine Nicolas , Mazur Mikael , Ryf Roland , Blumenthal Daniel J.
Published: May 2024

We stabilize a hybrid-integrated multi-wavelength laser to a photonic-integrated 4.0-meter-coil resonator, with 48 MHz FSR, achieving an 89 Hz integral linewidth and 4.3×10-13 frequency stability at 10.5 ms for 2 different wavelength channels.
Wafer-level fabrication of vacuum-gap Fabry-Pérot resonators with quality factors exceeding one billion
Authors: Jin Naijun , Liu Yifan , Lee Dahyeon , Cheng Haotian , McLemore Charles A. , Halladay Samuel , Luo Yizhi , Mason David , Diddams Scott A. , Quinlan Franklyn , Rakich Peter
Published: May 2024

We present a wafer-level fabrication method for high-Q, compact vacuum-gap Fabry-Pérot resonators. With quality factors surpassing one billion at 1560 nm, these resonators are well-suited in a range of applications as frequency references.
Proactive congestion control within 1-ms delay at mobile midhaul utilizing parallel traffic prediction and fast switchover of CU and optical path
Authors: Okamoto Yuka , Ujikawa Hirotaka , Asaka Kota , Shimada Tatsuya , Yoshida Tomoaki
Published: May 2024

We propose a proactive congestion control method that utilizes parallel traffic prediction and fast switchover of the CU and optical path. Our prototype controller can perform these tasks within a 1-ms delay at the MMH.
2.5 Gbps Error-free Physical Layer Key Distribution based on Signal Hiding over 80-km SSMF
Authors: Zhu Kongni , Li Yuang , Zhang Mingrui , Li Yajie , Zhao Yongli , Zhang Jie
Published: May 2024

We propose a physical layer key distribution scheme based on signal hiding and concatenated coding. Experimental results demonstrate that an error-free key can be obtained with the key generation rate of 2.5 Gbps over the 80-km standard single-mode fiber.
Squeezing recovery after detection with a completely free-running local oscillator
Authors: Nguyen Huy Q. , Chin Hou-Man , Hajomer Adnan A.E. , Andersen Ulrik L. , Gehring Tobias
Published: May 2024

We performed the first measurement and recovery of squeezed light using a free-running coherent receiver with a separate laser, 98% of the squeezing was preserved in our method relative to measurements with a shared laser.
Silicon Photonic Four-channel Dual-polarization Coherent Receiver Module for FMCW LiDAR application
Authors: Liu Chang , Qi Fan , Cai Pengfei , Li Su , Zhao JiaXing , Duan Yanhui , Hong Chingyin , Pan Dong
Published: May 2024

We demonstrate a four-channel dual-polarization FMCW LiDAR receiver module using a silicon photonic coherent receiver chip. The sensitivity of the module is better than -80dBm. The ranging operation within a distance of 81.9m is demonstrated.
Autoencoder Learning of Constellation Shaping Robust to Semiconductor Laser Noise and Nonlinearity in Fiber-THz System
Authors: Liu Xiang , Zhang Jiao , Zhu Min , Xin Zhigang , Tong Weidong , Wang Yunwu , Hua Bingchang , Cai Yuancheng , Lei Mingzheng , Ding Junjie , Chen Xingyu , Liu Bo , Yu Jianjun
Published: May 2024

We experimentally demonstrate the robustness of autoencoder-based constellation shaping against semiconductor laser noise and nonlinearity. Up to 46% lower BER and 1.5 dB gain are achieved in the fiber-THz system at 320 GHz.
1200-km Transmission of 4096-ary Eigenvalue-modulated Signal Using a Neural Network-based Demodulator and SD-FEC
Authors: Harada Ryotaro , Yoshida Tsuyoshi , Hisano Daisuke , Maruta Akihiro , Mishina Ken
Published: May 2024

We experimentally demonstrate the transmission of a 4096-ary eigenvalue-modulated signal using a neural network-based demodulator and SD-FEC. The experimental results indicate a successful operation with an error-free transmission through a 1200-km optical fiber line.
1 x 5 MEMS Mode Selective Switch with an Inverse-Designed Silicon Nitride MDM
Authors: Ruiz Julian L. Pita , Rabih Almur A. S. , Nabavi Seyedfakhreddin , Nabki Frederic , Ménard Michaël
Published: May 2024

We present the first experimental demonstration of an inverse-designed 5-mode division multiplexer (MDM) in silicon nitride for MEMS-based inter-chip switches. The MDM exhibits high efficiency, wide bandwidth, compactness, robust fabrication, and compatibility with commercial foundry production.
Continuous-variable quantum passive optical network
Authors: Hajomer Adnan A.E. , Derkach Ivan , Usenko Vladyslav C. , Filip Radim , Andersen Ulrik L. , Gehring Tobias
Published: May 2024

We report the first continuous-variable quantum passive optical network (CV-QPON), that supports secure key generation for 5 users simultaneously. This is achieved considering practical PON topology with an 11 km span of access links.
Adaptive Reconciliation for Experimental Continuous-Variable Quantum Key Distribution Over a Turbulent Free-Space Optical Channel
Authors: Gümüş Kadir , dos Reis Frazão João , van Vliet Vincent , van der Heide Sjoerd , van den Hout Menno , Albores-Mejia Aaron , Bradley Thomas , Okonkwo Chigo
Published: May 2024

We experimentally demonstrate adaptive reconciliation for continuous-variable quantum key distribution over a turbulent free-space optical channel. Additionally, we propose a method for optimising the reconciliation efficiency, increasing secret key rates by up to 8.1%.
Integrated Optical Parametric Amplifier with Record Gain
Authors: Xiao Junjie , Xia Di , Luo Liyang , Li Zhaohui , Zhang Bin
Published: May 2024

We report an innovative phase-sensitive optical amplification using GeSbS microresonators, obtaining 31.5 dB gain with 8.5 mW CW-pump power in phase-insensitive mode, a 4.95 dB additional gain and 18.9 dB extinction ratio in phase-sensitive mode.
Highly Efficient Second-Harmonic Generation in a Double-Layer Thin-Film Lithium Niobate Waveguide
Authors: Li Yuan , Cai Lutong , Zhang Lin
Published: May 2024

We demonstrate unprecedentedly efficient second-harmonic generation in a thin-film lithium niobate waveguide, with conversion efficiency as high as 9300% W-1cm-2 achieved, which is enabled by greatly enhancing the modal overlap of the higher-order mode in polarization-reversed dual-layer lithium niobate.
1.024-Tbit/s CDM-SDM Coherent PON over 10-km Weakly-Coupled MCF
Authors: Zhang Luxiao , Sun Lin , Xu Rendong , Xiong Junjie , Ma Lin , Chen Bin , Li Jun , Cai Yi , Shen Gangxiang , Liu Gordon Ning
Published: May 2024

1.024-Tbit/s CDM-SDM coherent PON is experimentally demonstrated based on weakly-coupled MCFs and Walsh code assignment. Space-time coding is utilized for balancing the inconsistency of the reception performances of CDM-assigned ONUs.
200G IM/DD Time-and-Polarization-Division-Multiplexed PON with >29dB Power Budget Using Boosted EML and APDs
Authors: Borkowski Robert , Vijayan Kovendhan , Houtsma Vincent , Hu Qian , Mahadevan Amitkumar , Iannone Pat , van Veen Doutje
Published: May 2024

We experimentally show feasibility of downstream 200 Gbit/s IM/DD TPDM PON system with >4 dB margin to 29 dB optical power budget based on two 100 Gbit/s polarization channels in a single wavelength window. The system uses SBS suppression to mitigate nonlinear fiber loss and duoternary modulation to overcome bandwidth limitation.
Optical Spectrum as a Service in Multi-Operator Environments: Challenges and Enabling Technologies for Transparent Optical Overlay Networks
Authors: Kaeval Kaida , Grobe Klaus , Elbers Jörg-Peter
Published: May 2024

This work reflects the challenges, intermediate solutions, and outlooks on the wide-scale implementation of Optical Spectrum as a Service in live multi-operator network environments..
Auto-DTWave: Digital Twin-Aided Autonomous Optical Network Operation with Continuous Wavelength Loading
Authors: Liu Xiaomin , Qiu Qizhi , Zhang Yihao , Cai Meng , Liu Yichen , Yi Lilin , Hu Weisheng , Zhuge Qunbi
Published: May 2024

We develop joint online digital twin (DT) construction and amplifier configuration with continuous wavelength loading in a commercial testbed. The DT achieves an RMSE of 0.37dB, assisting near-optimal amplifier configuration with <0.1dB average Q-factor deviation.
Effect of Modal Dispersion on the Nonlinear Interference Noise in SDM Transmissions
Authors: Lasagni C. , Serena P. , Bononi A. , Mecozzi A. , Antonelli C.
Published: May 2024

We review the effects of spatial mode dispersion and differential mode group delay on the nonlinear interference noise in space-division multiplexed systems based on few-mode fibers with weak linear coupling between mode groups.
Hyperaccelerated Power Optimization in Multi-Band Elastic Optical Networks
Authors: Arpanaei F. , Ghodsifar K. , Beyranvand H. , Hernández J. A. , Rivas-Moscoso José M. , Natalino C. , Zefreh M. Ranjbar , Napoli A. , Fernández-Palacios Juan P. , Larrabeiti D.
Published: May 2024

We show that solving interrelated inverse differential equations can address pre-tilt power optimization, resulting in a few-second-computed optimal power for each span and boosting average channel generalized signal-to-the-noise ratio (GSNR) by up to 0.5 dB.
Adaptive and DSP-Compatible Optical Multipath Interference Mitigation Scheme for 60Gbps PAM8-CRAN
Authors: Xue Rui , Huang Chuanming , Cheng Mengfan , Yang Qi , Liu Deming , Deng Lei
Published: May 2024

We proposed an adaptive DSP-compatible time-varying multipath interference noise mitigation algorithm based on probability distribution over 15.5km SSMF at 56/60Gbps PAM4/8. The signal-to-interference ratio tolerance improvement of 3dB PAM8 shows its potentiality for high-order PAM.
Sub-1 dB Loss SiN-to-Polymer Waveguide Coupling: an Enabler for Co-Packaged Optics
Authors: Van Asch Jef , Missinne Jeroen , He Junwen , Xu Pengfei , Podpod Arnita , Lepage Guy , Golshani Negin , Magdziak Rafal , Sar Huseyin , Kobbi Hakim , Bipul Swetanshu , Bode Dieter , Ban Yoojin , Ferraro Filippo , Van Campenhout Joris , Van Steenberge Geert
Published: May 2024

We report the design, fabrication and characterization of a broadband silicon nitride to polymer waveguide adiabatic coupling interface with sub-1 dB loss around 1310 nm, enabling a sub-2 dB chip-to-chip and chip-to-fiber coupling loss.
Crosstalk-Compensated Optical Phased Arrays for Wide-Angle Beam-Steering
Authors: Sharma Ankita , Straguzzi John N. , Xue Tianyuan , Govdeli Alperen , Chen Fu-Der , Stalmashonak Andrei , Sacher Wesley D. , Poon Joyce K.S.
Published: May 2024

We demonstrate beam-steering over ~115° using independent amplitude and phase control to compensate for optical crosstalk in an optical phased array with 1mm-long waveguide grating emitters spaced at a ~λ/2 (775 nm) pitch.
QoT-Aware Adaptive Multi-Band Networking over Hybrid Fibers Enabled by Wavelength-Selective Band Switching
Authors: Nakagawa Masahiro , Fukatani Takafumi , Seki Takeshi , Hayashi Rie , Kuwahara Takeshi
Published: May 2024

We investigate highly adaptive multi-band networking for diverse physical-layer conditions. Using our wavelength-selective band-switchable OXC prototype, we demonstrate adaptive C+L-band spectrum utilization over hybrid SMF/DSF links as link-by-link band selection can suppress nonlinear interference accumulation.
Experimental Demonstration of An Efficient Correlation Attack Method in 300km QAM/QNSC Transmission
Authors: Zhang Mingrui , Li Yajie , Zhu Kongni , Wei Shuang , Li Yuang , Zhao Yongli , Zhang Jie
Published: May 2024

We propose an efficient correlation attack based on low-order demodulation to recover the seed keys in QNSC. Experiment results prove its high success possibility and low computational complexity in 300km QAM/QNSC transmission.
Experimental Demonstration of Fidelity Enhancement for Chaotic Signals in Free-Space Turbulent Channels Utilizing Vector Optical Field Manipulation
Authors: Zhang Yiqun , Xu Mingfeng , Song Zheng , Zhou Mengjie , Ding Jiazheng , Pu Mingbo , Qiu Kun , Jiang Ning , Luo Xiangang
Published: May 2024

We experimentally demonstrate fidelity enhancement in transmitting chaotic signals through an indoor simulated kilometer-scale turbulence channel using vector optical field manipulation, which results in a 30% fidelity improvement relative to Gaussian beams under strong turbulence.
High Temperature and Large Bandwidth Blue InGaN/GaN Micro-LEDs
Authors: Rogers Daniel , Xue Haotian , Kish Fred , Pezeshki Bardia , Tselikov Alex , Wierer Jonathan J.
Published: May 2024

InGaN/GaN micro-light-emitting diodes with the highest bandwidths at very high temperatures (3.2 GHz at 290°C) are demonstrated. Differential carrier lifetime analysis is undertaken to understand recombination-related effects on the modulation response.
Narrowband Noise Filtering of Arbitrary Waveforms by Reversible In-Fiber Temporal Talbot Sampling
Authors: Goodarzi Majid , Fernandez Manuel P. , Zhu Xinyi , Azaña José
Published: May 2024

We effectively employ temporal Talbot effects to filter narrowband optical noise beyond optical bandpass filter capabilities in MHz-bandwidth temporal waveforms and random data signals, recovering buried optical signals and enhancing optical signal-to-noise ratio.
Multi-Transverse Mode Multiply-and-Accumulate Operation toward Advancement of Photonic Accelerators
Authors: Safaee Seyed Mohammad Reza , Mojaver Kaveh (Hassan) Rahbardar , Liboiron-Ladouceur Odile
Published: May 2024

We demonstrate a novel mode-division-multiplexing subsystem achieving four output power levels using two single-bit rings on two TE modes for photonic accelerators. The photodetector combines the energy of two TE modes without requiring coherent summation.
Latest Progress and Challenges in 300 mm Monolithic Silicon Photonics Manufacturing
Authors: Hirokawa Takako , Bian Yusheng , Giewont Ken , Aboketaf Abdelsalam , Chandran Sujith , Cho Jae-Kyu , Chowdhury Zahidur , Lee Won Suk , Liu Qidi , Sharma Prateek , Sorbara Massimo , Anderson Frederick G. , Barakat Farid , Dasgupta Arpan , Dezfulian Kevin , Houghton Thomas , Kim Jason , Lin Yarong , Robson Norman , Ruparelia Vaibhav , Song Shenghua , Sporer Ryan , Tang Teck-Jung , Tinkler Janet , Wong Helen , Zhang Michelle
Published: May 2024

In this paper we discuss the latest developments in the GlobalFoundries Fotonix™ program, including enhancements in device performance, packaging, PDK compact models, and in-house test capabilities.
Low-temperature and hydrogen-free silicon dioxide cladding for next-generation integrated photonics
Authors: Li Zihan , Qiu Zheru , Wang Rui Ning , Ji Xinru , Divall Marta , Siddharth Anat , Kippenberg Tobias J.
Published: May 2024

We demonstrate a process for hydrogen-free low-loss silicon oxide (SiO2) films deposited using S iCl4 and O 2 as precursors. A wide low-loss window from 1260 nm to 1625 nm is achieved at a deposition temperature of 300
◦
C, essential for next generation photonic integrated circuits.
Detecting Anomalies in the Optical Layer Using Unsupervised Machine Learning
Authors: Aladin Sandra , Wosinska Lena , Tremblay Christine
Published: May 2024

We propose an unsupervised machine learning (ML) approach using field data for the detection of optical layer anomalies. We show how multivariate ML models can forecast hard failures by detecting soft failures.
Machine Learning-Aided Nonlinearity-Tailored Carrier Phase Recovery for Subcarrier Multiplexing Systems
Authors: Neves M. S. , Lorences-Riesgo A. , Monteiro P. P. , Guiomar F. P.
Published: May 2024

Nonlinear phase noise (NLPN) hampers the benefits of digital subcarrier multiplexing (DSCM) systems. Our paper introduces a low-complexity carrier phase recovery (CPR) method for countering NLPN in DSCM systems, achieving 0.5 dB improvement over conventional CPR.
C+L+U-Band 14.85-THz WDM Transmission Over 80-km-Span G.654.E Fiber with Hybrid PPLN-OPA/EDFA U-Band Lumped Repeater Using 144-Gbaud PCS-QAM Signals
Authors: Kobayashi Takayuki , Shimizu Shimpei , Kawai Akira , Nakamura Masanori , Abe Masashi , Kazama Takushi , Umeki Takeshi , Nagatani Munehiko , Kimura Kosuke , Wakita Hitoshi , Shiratori Yuta , Hamaoka Fukutaro , Yamazaki Hiroshi , Takahashi Hiroyuki , Miyamoto Yutaka
Published: May 2024

We demonstrate 14.85-THz-bandwidth WDM transmission over G.654.E fiber using hybrid PPLN-OPA/EDFA for 4.5-THz U-band. Capacities of 115.3-Tb/s over 800 km and 72.6-Tb/s over 2,400 km for 144-Gbaud PCS-QAM signals are achieved with lumped amplifiers only.
18,090-km 2-core Fiber Transmission Using Circulatory Directional Fan-in/Fan-out Devices
Authors: Soma Daiki , Beppu Shohei , Galdino Lidia , Lorenz Michael , Ma Qiulin , Iwasaki Katsuhiro , Sumita Seiya , Komatsu Kosuke , Elson Daniel J. , Kiriyama Tomoaki , Kito Katsuya , Kitamura Keito , Takahashi Hidenori , Yoshikane Noboru , Kato Takashi , Tsuritani Takehiro , Böttcher Martin , Meissner Ansgar , Bennett Kevin , Makovejs Sergejs , Wakayama Yuta
Published: May 2024

A record distance of 18,090 km in bidirectional multicore fiber transmission is experimentally demonstrated. Ultra-low loss 2-core fibers and circulatory directional fan-in/fan-out devices synthetically enable to reduce span loss as comparable to single-core fiber systems.
Hollow Core DNANF Optical Fiber with <0.11 dB/km Loss
Authors: Chen Y. , Petrovich M.N. , Fokoua E. Numkam , Adamu A.I. , Hassan M.R.A. , Sakr H. , Slavík R. , Gorajoobi S. Bakhtiari , Alonso M. , Ando R. Fatobene , Papadimopoulos A. , Varghese T. , Wu D. , Ando M. Fatobene , Wisniowski K. , Sandoghchi S.R. , Jasion G.T. , Richardson D.J. , Poletti F.
Published: May 2024

We report the fabrication of a hollow-core DNANF with a geometry extensively optimized for minimum loss. Three independent loss measurements average 0.08±0.03 dB/km at 1550 nm, the lowest attenuation ever achieved in an optical fiber.
400 Gbps/λDP-16QAM O-band Link with SiP TX and RX PICs using only Heterogeneously Integrated Lasers and SOAs for Optical Gain
Authors: Misak Stephen , Wissing Aaron , Zhang Jinsong , Wei Zixian , Liu Junqian , Andrade Hector , Maharry Aaron , Gilardi Giovanni , Kumar Ranjeet , Su Guan-Lin , Liu Ansheng , Akulova Yuliya , Buckwalter James F. , Saleh Adel A. M. , Coldren Larry , Plant David V. , Schow Clint L.
Published: May 2024

We report the first net 400 G bps/λ O-band coherent, dual-polarization, 60 Gbaud 16QAM link using SiP TX/RX PICs with heterogeneously integrated lasers, operating below the 15% overhead SD-FEC limit over 2 km without external amplifiers.
Spectrally Sliced Optical Arbitrary Waveform Measurement (OAWM) Using a Photonic Multi-Chip Receiver Assembly
Authors: Fang Dengyang , Drayss Daniel , Chen Yung , Lauermann Matthias , Peng Huanfa , Lihachev Grigory , Quint Alexander , Valenziano Luca , Randel Sebastian , Zwick Thomas , Freude Wolfgang , Kippenberg Tobias J. , Koos Christian
Published: May 2024

We demonstrate the first spectrally sliced OAWM receiver assembly that combines slicing filters and optical receivers in a hybrid multi-chip module. We prove the viability of the device by receiving a wavelength-division-multiplexed signal over a bandwidth of 320 GHz.
IMDD Data Transmission with Microresonator Soliton Crystals
Authors: Ong K. Y. K. , Chia X. X. , Rahim A. A. , Chen G. F. R. , Tan D. T. H.
Published: May 2024

Intensity modulated direct detection data transmission using microresonator multi-soliton and 2-soliton crystal states are demonstrated. We achieve error free transmission of 10Gb/s NRZ data and BERs in the region of 10-4 with 28.05GBd/s PAM4 data.
Foundry compatible, efficient wafer-scale manufacturing of ultra-low loss, high-density Si3N4 photonic integrated circuits
Authors: Ji Xinru , Wang Rui Ning , Liu Yang , Riemensberger Johann , Qiu Zheru , Kippenberg Tobias J.
Published: May 2024

We demonstrate ultra-low propagation loss, lithographic precision, and wafer-scale manufacturing for high-density Si3N4 photonic integrated circuits using an efficient DUV-based subtractive approach. We show a propagation loss as low as 1.4 dB/m at 1.55 µm.
An integrated photonic-electronic quantum coherent receiver for sub-shot-noise-limited optical links
Authors: Gurses Volkan , Sarkar Debjit , Davis Samantha , Hajimiri Ali
Published: May 2024

We demonstrate an integrated quantum-limited coherent receiver with co-packaged silicon photonics and electronics. The fully integrated receiver has 2.57 GHz bandwidth, 14.5 dB shot noise clearance, 587 µW knee power, and 2.7 × 0.8 mm2 footprint. With this system, we measure squeezed vacuum showing 0.156 ± 0.039 dB sub-shot-noise-level sensitivity.
Photon-number-resolving and ultra-fast multipixel SNSPD arrays for quantum photonic platforms
Authors: Resta G. V. , Stasi L. , Perrenoud M. , Thew R. , Zbinden H. , Bussieres F.
Published: May 2024

We report on a high-efficiency multipixel SNSPD array detecting at > 1.5 GHz and that has excellent photon-number resolving (PNR) capability at 1550 nm. This device enables ultrafast QKD with > 60 Mbps secret key rate, and also PNR detection with high n-photon efficiencies for photonic quantum processors with various types of photon sources.
SOA-integrated High-power EML-CAN for 50G-PON Downstream
Authors: Nishikawa Satoshi , Suzuki Ryoko , Matsuura Masahiro , Azuma Yusuke , Atsugi Kairi , Uwadoi Yu , Nakahara Hironori , Suzuki Yosuke
Published: May 2024

A high-power SOA-integrated EML was demonstrated for a 50G-PON downstream (20 dBm output power). An EML-CAN was developed using this chip and it could effectively satisfy the ITU-T standard, thereby demonstrating its remarkable characteristics.
High Speed InP Modulator for Beyond 200 Gbaud
Authors: Ogiso Yoshihiro , Ozaki Josuke , Sugiura Kenta , Saito Yusuke , Ishikawa Mitsuteru
Published: May 2024

We developed a next-generation InP twin-IQ modulator PIC for beyond 200-Gbaud operations. A 3-dB electro-optic bandwidth of the modulator exceeds 100 GHz while maintaining a half-wave voltage of 1.5 V and total on-chip optical insertion loss of less than 3.5 dB.
Distortion Characterization and Performance Estimation of Time-interleaved DAC and ADC Based on the Measurement of Nonlinear Noise Spectrum
Authors: Ye Tong , Zhang Ke , Su Xiaofei , Li Jingnan , Nakashima Hisao , Hoshida Takeshi , Tao Zhenning
Published: May 2024

Unlike many nonlinear devices, the time-interleaved DAC and ADC can be characterized by simple notch method accurately due to their unique nonlinear mechanism. By constructing equivalent model with measured noise spectrum, nonlinear system Q is estimated with 0.2-dB accuracy.
Hollow-Core-Fiber Placement in Latency-Constrained Metro Networks with edgeDCs
Authors: Sticca Giovanni Simone , Ibrahimi Memedhe , Di Cicco Nicola , Musumeci Francesco , Tornatore Massimo
Published: May 2024

We investigate the optimal placement of Hollow-Core Fibers (HCF) in latency-constrained metro networks with edgeDCs, performing physical-layer validation. Upgrading 24% of links to HCF reduces edgeDCs number by 29% compared to a network without HCFs.
A Roadmap Towards Entanglement Distribution Over Useful Telecom Distances
Authors: Malik Mehul
Published: May 2024

I review progress on the distribution of photonic entanglement under extreme conditions of noise and loss, enabled by high-dimensionally entangled quantum states of light.
CMOS photonic integrated circuit for flex-grid polarization entanglement
Authors: Miloshevsky Alexander , Lu Hsuan-Hao , Cohen Lucas M. , Myilswamy Karthik V. , Fatema Saleha , Alshowkan Muneer , Weiner Andrew M. , Lukens Joseph M.
Published: May 2024

We showcase a CMOS-fabricated silicon photonic integrated circuit employing a bidirectionally pumped microring and polarization splitter-rotators for high-fidelity polarization entanglement. Spanning the optical C+L-band, this source is ideal for wavelength-multiplexed entanglement distribution in multi-user networks.
Ultrafast 67 GHz Waveguide-Coupled Silicon-Germanium Avalanche Photodiode
Authors: Shi Yang , Zou Mingjie , Li Zuhang , Zhang Xinliang , Yu Yu
Published: May 2024

We demonstrate a silicon-germanium avalanche photodiode with record-high bandwidth of 67 GHz under a modest gain of 6.6, by levering the gain and bandwidth through comprehensively manipulating photocurrent density and electric field in multiplication region.
Polarization-Independent Photodetector with Integrated Optical Preamplifier and 60 GHz 3 dB Bandwidth
Authors: Boerma Hendrik , Kieckhefel Tom , Tran Thanh T. , Runge Patrick , Schell Martin
Published: May 2024

An InP-based photodetector monolithically integrated with a semiconductor optical amplifier is presented. The chip operates in the O-band and is polarization-independent. Eye pattern measurements at 56 GBaud confirm the lower detection limit of signals with -13 dB optical power compared to a photodetector without preamplification.
Optics-informed Neural Networks: Bridging Deep Learning with Photonic Accelerators
Authors: Moralis-Pegios M. , Tsakyridis A. , Pappas C. , Moschos T. , Giamougiannis G. , Kovaios S. , Roumpos I. , Kirtas M. , Passalis N. , Tefas A. , Pleros N.
Published: May 2024

We discuss our work in optics informed photonic neural networks, an architectural framework bridging the idiosyncrasy of integrated photonic architectures with a set of Deep Learning algorithms, towards harnessing the full potential of light-based accelerators.
Demonstration of Neural Heterogeneity with Programmable Brain-Inspired Optoelectronic Spiking Neurons
Authors: Lee Yun-Jhu , On Mehmet Berkay , El Srouji Luis , Zhang Li , Abdelghany Mahmoud , Ben Yoo S.J.
Published: May 2024

Neural heterogeneity enables spiking neural networks to implement complex functions with fewer neurons. We designed, simulated, and demonstrated programmable optoelectronic spiking neurons that can achieve multiple neuron characteristics based on external tuning voltages.
Semi-Analytical Methodology for Advanced Filter Design in Chirped-Managed Lasers
Authors: Maram Reza , Alam Md Samiul , Shahriar Kh Arif , Ricciardi Pasquale , Plant David V.
Published: May 2024

We introduce a novel semi-analytical method for the deterministic design of advanced optical filters in chirped-managed lasers (CMLs), enhancing transmission reach for access networks. This approach can be applied to any baud rate of NRZ and PAM-4, overcoming previous trial-and-error methods.
Highly Sensitive Co-trench Detection of Optical Fibers by Correlation Analysis with Field Test
Authors: Lin Jiachuan , Jiang Zhiping , Zhang Tao , Liu Qingpeng , Qin Haiming , Li Hao
Published: May 2024

A coherent-OTDR and correlation analysis-based method is proposed to detect co-trench fibers. High sensitivity and accuracy are demonstrated in a field test with two partially co-trenched fibers.