bluuebunny/crossref_metadata_2025 huggingface dataset:
Integrated twisted bilayer graphene photonic upconverter for D-Band wireless links
Authors: Montanaro A. , Boschi A. , Ducournau G. , Mišeikis V. , Soresi S. , Frecassetti M.G.L. , Galli P. , Happy H. , Pezzini S. , Coletti C. , Romagnoli M. , Sorianello V.
Published: May 2024

We report a compact D-band graphene photonics-based upconverter at 140 GHz for next generation 6G networks. We show 10Gb/s QPSK and 4Gb/s 16QAM transmission exploiting ultra-broadband (> 180GHz) operation of CVD-grown large-angle twisted-bilayer-graphene.
Applications of Multicore-Fiber Nonuniformly-Spaced Delay Lines in Microwave Photonics
Authors: González Mario Annier , Nazemosadat Elham , Gasulla Ivana
Published: May 2024

We experimentally demonstrate a flat-top bandpass microwave filter and a fractional Hilbert transformer in a multicore fiber. Both applications operate based on nonuniformly-spaced delay lines, providing equivalent negative tap coefficients by adjusting their time delays.
A TeraFLOP Photonic Matrix Multiplier using Time-Space-Wavelength Multiplexed AWGR-based Architectures
Authors: Pappas Christos , Moschos Theodoros , Moralis-Pegios Miltiadis , Giamougiannis George , Tsakyridis Apostolos , Kirtas Manos , Passalis Nikolaos , Tefas Anastasios , Pleros Nikos
Published: May 2024

We demonstrate experimentally a novel 8×8 AWGR-based photonic matrix multiplier that enables simultaneously time-, wavelength- and space- division multiplexed computing with a computational power of 1.28 TeraFLOP.
Unavailability Analyses of Hyperscale Data Center Interconnect Optical Networks with Optical Layer Protection
Authors: Wang Lingling , Wang Lei , Wang Chunxiao , Xie Chongjin
Published: May 2024

With massive field operation data collected from our production optical networks, we analyze the network unavailability of metro data center interconnect networks where optical layer protection is used, and the main factors affecting network unavailability are quantified.
Scaling Optical Network Fault Management with Decentralized Graph Learning
Authors: Lin Qunzhi , Chen Xiaokang , Ouyang Zhenlin , Gao Hanyu , Chen Xiaoliang , Li Zhaohui
Published: May 2024

We propose a decentralized graph learning framework for scaling cognitive fault management in optical networks. Results show the proposed design achieves > 96% fault identification and localization accuracy.
Spatio-Temporal Failure Prediction Using LSTGM for Optical Networks
Authors: Xing Cheng , Zhang Chunyu , Wang Yu , Duan Zhiyan , Song Wenjie , Zhang Min , Wang Danshi
Published: May 2024

A Latent Spatio-Temporal Graph Model is proposed for failure prediction in optical networks, which can effectively learn both spatial and temporal distribution of real equipment performance data and achieve F1-score up to 0.9745.
Non-uniform Quantization and RUM for Optimizing Implementation of Real-Time FIR Equalization in Short-Reach Optical Links
Authors: Sang Bohan , Wang Kaihui , Jiang Luhan , Wang Chen , Wang Yikai , Liu Jiaxuan , Zhang Long , Ge Jingtao , Zhou Wen , Yu Jianjun
Published: May 2024

We propose a low-complexity equalization scheme with non-uniform quantization and rotational update mechanism (RUM). The scheme is verified in implementation of DDLMS equalization for 92-Gbaud 10-km offline and 14.7456-Gbaud 25-km FPGA-based real time PA M4 IM/DD experimental transmission, results show up to 99.5% multiplications (DSP resource usage) are reduced comparing to normal DDLMS equalizer . A large number of equivalent taps can be achieved based on several active taps.
Fully-blind Neural Network Based Equalization for Severe Nonlinear Distortions in 112 Gbit/s Passive Optical Networks
Authors: Lauinger Vincent , Matalla Patrick , Ney Jonas , Wehn Norbert , Randel Sebastian , Schmalen Laurent
Published: May 2024

We demonstrate and evaluate a fully-blind digital signal processing (DSP) chain for 100G passive optical networks (PONs), and analyze different equalizer topologies based on neural networks with low hardware complexity.
402 Tb/s GMI Data-Rate OESCLU-Band Transmission
Authors: Puttnam B. J. , Luis R. S. , Phillips I. , Tan M. , Donodin A. , Pratiwi D. , Dallachiesa L. , Huang Y. , Mazur M. , Fontaine N.K. , Chen H. , Chung D. , Ho V. , Orsuti D. , Boriboon B. , Rademacher G. , Palmieri L. , Man R. , Ryf R. , Neilson D. T. , Forysiak W. , Furukawa H.
Published: May 2024

We combine 6 doped-fiber amplifier variants with lumped and distribute Raman-amplification to transmit in all of the low-loss transmission bands of silica fibers achieving an SMF record data-rate of 402.2 Tb/s (GMI)-378.9 Tb/s (Decoded) and 37.6 THz transmission bandwidth after 50 km.
Towards international clock comparisons on a telecom network: ultrastable optical frequency transfer over deployed multi-core fiber
Authors: Hoghooghi Nazanin , Mazur Mikael , Fontaine Nicolas , Liu Yifan , Hayashi Tetsuya , Di Sciullo Giammarco , Shaji Divya Ann , Mecozzi Antonio , Antonelli Cristian , Quinlan Franklyn
Published: May 2024

We present optical frequency transfer over deployed multi-core fiber at levels that support the world’s best optical clocks for the first time, achieving fractional frequency stability better than 3 10-19 through 25.2 km of fiber.
End-to-End Joint Digital and Optical Signal Processing Enabled by Interpretable Deep Learning for Coherent Optical Communication Systems
Authors: Liu Qiaoya , Fu Mengfan , Liu Xiaomin , Yi Lilin , Hu Weisheng , Zhuge Qunbi
Published: May 2024

Joint digital and optical signal processing is enabled by interpretable deep learning to realize end-to-end distributed equalization for optical transmissions. Up to 6.2 dB SNR gain is demonstrated for optical links with cascaded ROADMs.
O-Band SOH Mach-Zehnder Modulator Operating at a PAM4 Line Rate of 384 Gbit/s with Sub-Volt Drive Voltage
Authors: Schwarzenberger A. , Sarwar S. , Eschenbaum C. , Mertens A. , Martens M. , Kotz A. , Fang D. , Sherifaj A. , Singer S. , Kholeif H. , Kern P. , Erk P. , Kuzmin A. , Bräse S. , Randel S. , Freude W. , Koos C.
Published: May 2024

We demonstrate an O-band SOH Mach-Zehnder modulator (MZM), enabling 192GBd PAM4 transmission at 384 Gbit/s with sub-volt drive voltages. This is the highest line rate so far demon-strated with an MZM on the silicon platform.
A 160 TOPS Multi-dimensional AWGR-based accelerator for Deep Learning
Authors: Pappas C. , Moschos T. , Prapas A. , Tsakyridis A. , Moralis-Pegios M. , Vyrsokinos K. , Pleros N.
Published: May 2024

We experimentally demonstrate a novel time-space-wavelength multiplexed AWGR-based photonic tensor multiplier that provides a total computational power of 163.8 TeraOP, offering a ~14x improvement compared to state-of-the-art waveguide-based optical accelerators.
1.6-Tbps Low-Power Linear-Drive High-Density Optical Interface (HDI/O) for ML/AI
Authors: Le Son Thai , de Valicourt Guilhem , Pupalaikis Pete , Giles Randy , Lamponi Marco , Elsinger Lukas , Liu Shawn , Sawyer Brett , Proesel Jon , Ho Eugene , Liu Karen , Homsey Glen , Lopez Joseph , Zhu Zhiqui , Corteselli Steve , Alloin Laurent , Daunt Chris , Ferriss Mark , Rahmani Behzad , Warning Fred , Bruno Ashok , Abbaslou Siamak , Zaman Mehdi , Pan Zeyu , Fischer George , Haigh Paul , Reichert Gannon , Gazman Alexander , Fesharaki Faezeh , Winzer Peter
Published: May 2024

We demonstrate a high-density, high-speed, low-latency, low-power, fully-packaged optical engine operating real-time at 16x106.25-Gbps (full-duplex) and achieving a chiplet edge I/O density of 246 Gbps/mm. The engine is 2D-arrayable to Tbps/mm-class I/O densities.
Net 1.6 Tbps (4×400Gbps/λ) O-Band IM/DD Transmission Over 2 km Using Uncooled DFB Lasers on the LAN-WDM grid and Sub-1V Drive TFLN Modulators
Authors: St-Arnault Charles , Bernal Santiago , Berikaa Essam , Wei Zixian , Gutiérrez-Castrejón Ramón , Zhang Jinsong , Alam Md Samiul , Nikic Aleksandar , Krueger Benjamin , Pittalà Fabio , Plant David V.
Published: May 2024

We report the first 1.6 Tbps (4×400Gbps/λ), O-band, 2 km IM/DD transmission system using uncooled DFB lasers and a sub-1 Vpp TFLN modulator operating at 160 Gbaud PAM8 under the 20% SD-FEC threshold.
Heterogenous InP Electro-Absorption Modulator with Si Waveguides for Beyond 200 Gbps/λ Optical Interconnects
Authors: Ostrovskis Armands , Szczerba Krzysztof , Salgals Toms , Norberg Erik , Koenigsmann Michael , Sonkoly John , Rubuls Kristaps , Yun Han , Krüger Benjamin , Piels Molly , Sedulis Arvids , Pittalà Fabio , Spolitis Sandis , Gruen Markus , Louchet Hadrien , Jahn Robert , Yamaguchi Kazuo , Bobrovs Vjaceslavs , Pang Xiaodan , Guzzon Robert , Ozolins Oskars
Published: May 2024

We demonstrate an InP EAM with Si waveguides and achieve 256 Gbaud OOK, 170 Gbaud PAM4, 150 Gbaud PAM6, and 120 Gbaud PAM8 transmission over 500 meters of SMF below 6.25% OH HD-FEC threshold.
Liquid Cooling for Optical Networking Equipment
Authors: Mohajer Behzad , Ajersch Peter , Bishop Michael , Shearman Simon , Saturley Peter , Nicolici Marko
Published: May 2024

This article provides insights into a successful upgrade of an air-cooled coherent metro router into a Hybrid Liquid/Air-cooled system. Additionally, an innovative solution is presented for integrating liquid-cooling into the body of pluggable optical modules.
Stand-alone 3C-SiC-based Single-photon Source modules for Quantum Key Distribution
Authors: Choi Byung-Seok , Baek Ju Hee , Kim Kap-Joong , Choe Joong-Seon , Lim Kyongchun , Kim Minchul , Youn Chun Ju
Published: May 2024

We propose the stand-alone 3C-SiC-based single photon source modules for Quantum Key Distribution. They emit single-mode-fiber-coupled single photons at high count rates and operate at room temperature near the telecom O-band.
Multi-channel system with high-performance fractal superconducting nanowire single-photon detectors
Authors: Hao Zifan , Zou Kai , Meng Yun , Descamps Thomas , Iovan Adrian , Zwiller Val , Hu Xiaolong
Published: May 2024

We report on an eight-channel fractal SNSPD system in the wavelength range of 940 nm with minimal polarization sensitivity. The best channel exhibits 96% system detection efficiency and 19 cps dark-count rate.
Demonstration of 155 Gbaud PAM4 and PAM6 EML with Narrow High-Mesa EA Modulator for 400 Gbps per Lane Transmission
Authors: Uchiyama Asami , Okuda Shinya , Tsuji Toshiya , Hokama Yohei , Shirao Mizuki , Abe Kenichi , Yamatoya Takeshi , Yamauchi Yasuhiro
Published: May 2024

We experimentally demonstrated 400 Gbps-per-lane EML with narrow high-mesa EA modulator. TDECQ less than 3.3 dB at 310 Gbps (155 Gbaud PAM4) and clear eye diagram at 400 Gbps (155 Gbaud PAM6) were achieved.
Process-tolerant III-V/Si Membrane Distributed Reflector Lasers and 50-Gb/s Direct Modulation at 80°C
Authors: Takeda Koji , Fujii Takuro , Maeda Yoshiho , Segawa Toru , Matsuo Shinji
Published: May 2024

We demonstrate distributed reflector lasers based on a III-V/Si membrane platform that includes quantum well intermixed distributed Bragg reflectors offering tolerance to fabrication errors. The laser was used to transmit 50-Gb/s PAM4 signals at 80°C.
A 64 Gb/s NRZ O-Band Ring Modulator with 3.2 THz FSR for DWDM Applications
Authors: Xie Chuan , Raj Mayank , Joshi Anish , Mohammed Zakriya , Saha Gareeyasee , Wang Zhaowen , Upadhyaya Parag , Frans Yohan
Published: May 2024

We demonstrate the highest BW-FSR product O-band Si microring modulator to date. The device achieves 3.2 THz FSR, 41 GHz BW, 44 pm/V modulation efficiency, and operates at 64 Gb/s NRZ.
Advanced Low-Loss Fibers for High-Capacity Transmission: from Data Center to Undersea
Authors: Zhu B. , Geisler T. , Borel P. I. , Jensen R. , Stegmaier M. , Palsdottir B. , Peckham D. W. , DiGiovanni D. J.
Published: May 2024

We review recent progresses of advanced ultra-low-loss (ULL) fibers, introducing an 85μm2 effective-area fiber with record-low-attenuation of 0.1474 dB/km at 1550 nm. We also highlight system demonstrations using ULL fibers and their relevance to DCI/metro and undersea network.
Reduced Single-Coating Diameter Fiber
Authors: Sillard P. , Mentzler C. , Amezcua A.
Published: May 2024

We report the fabrication of a colored 170µm single-coating diameter fiber with standard 125µm cladding diameter. This fiber shows good optical properties, including micro-bending sensitivity, and improved mechanical properties compared to reduced dual-coating diameter fibers.
Optofluidic microstructured fibers: a nanoparticle tracking analysis platform for understanding nanoscale objects such as SARS-CoV-2
Authors: Schmidt Markus A.
Published: May 2024

Understanding nanoscale processes at the single-species level is highly relevant for many areas. Here, we will present the details of fiber-assisted nanoparticle tracking analysis and show various experimental results relying on microstructured fibers.
In-Service Transmitter Calibration via Offloaded 4×2 WL MIMO Equalizer with Compensating IQ Imbalance
Authors: Sato Masaki , Noguchi Hidemi , Matsui Junichiro , Abe Jun’ichi , Le Taillandier de Gabory Emmanuel
Published: May 2024

In-service Tx-IQ imbalance calibration estimated with 4×2 MIMO equalizer for 96-Gbaud PM-PCS-64QAM was demonstrated over 120 km SMF. Q-penalties of 0.1 dB with 2 ps IQ skew and ±2.5 dB IQ peaking error were achieved.
Digital Coherent Sensing over Deployed Fibers for Advanced Network Telemetry
Authors: Guerrier Sterenn , Dorize Christian , Pavani Henrique , Mardoyan Haïk , Awwad Élie , Renaudier Jérémie
Published: May 2024

We discuss the performance of Coherent-MIMO-DFS over deployed optical networks in various configurations and address technological challenges such as adaptation to various fiber types, disturbance identification.
Field Detection and Localization of Digging Excavator Events using MIMO Digital Fiber Sensing over a Deployed Optical Network for Proactive Fiber Break Prevention
Authors: Guerrier S. , Mardoyan H. , Dorize C. , Pavani H. , Darwish K. , Biyahi M. , Re L. , Koubaa A. , Galal H. , Chenard S. , Renaudier J.
Published: May 2024

We demonstrate the detection and localization of the perturbations induced by a jackhammer and an excavator over a buried fiber cable from an operational optical network thanks to high sensitivity Multiple-Input-Multiple-Output digital fiber sensing.
Field Test of Communication Cable for Environmental Monitoring
Authors: Zhang Chuanbiao , Tang Xiongyan , Wang Guangquan , Shen Shikui , Zhang He , Chang Yanbiao , Cao Junzhong
Published: May 2024

A routing section of the communication cable in the live network is used, combined with distributed optical fiber sensing equipment, for long-term monitoring, and through data recording, to achieve a variety of dynamic event response analysis.
519.21 Gbps Optical Interconnect Using 50-Channel Pre-equalized WDM Visible Light Laser Communication System
Authors: Lin Xianhao , Zhang Haoyu , Lu Zhilan , Luo Zhiteng , Shen Chao , Shi Jianyang , Zhang Junwen , Li Ziwei , Chen Hui , He Zhixue , Yu Shaohua , Chi Nan
Published: May 2024

We demonstrate a record-breaking 519.21Gbps transmission using an integrated WDM visible light laser communication system and hardware pre-equalization for the first time. It is a promising solution for next generation optical interconnects in data centers.
All-in-one TO-can-Packed RGB-LD Lamp Enables 40-Gbit/s White-lighting Wireless DMT Link
Authors: Lin Gong-Ru , Cheng Chih-Hsien , Chen Po-Lun , Ho Pin-Wei , Lai Szu-En , Wu Yi-Chien , Liao Yu-Sheng , Chi Yu-Chieh , Matsumoto Atsushi , Akahane Kouichi
Published: May 2024

White-lighting lamp beam with an all-in-one TO-can-packaged RGB-LD chip is performed with an illuminance of >300 lux, a CRI of >80, and a CCT of 6500K for free-space-optical wireless 16-QAM DMT link at 38.4 Gbit/s.
Flexible WDM VLC System with LEDs as Multi-Gb/s Receivers and Beacon Emitters for Integrated Localization
Authors: Schrenk Bernhard
Published: May 2024

Multi-color in-door VLC is demonstrated at 5.3-Gb/s λ-bonded pencil-beam transmission after receiver localization through multi-purpose LEDs. Flexible spectrum allocation with <65-ms switching time and the robustness to optical reflections at the VLC fronthaul are proven.
Optical Beam Steerable and Beam Dividable of Non-Orthogonal Multiple Access (NOMA) Signal with Low-Density Parity-Check (LDPC) for Multi-User Optical Wireless Communication System
Authors: Jian Yin-He , Wang Chih-Chun , Chen Jian-Wen , Wei Tzu-Chieh , Chow Chi-Wai , Yeh Chien-Hung
Published: May 2024

We propose a spatial-light-modulator (SLM)-enabled optical beam steerable and beam dividable optical-wireless-communication (OWC) using orthogonal-frequency-division-multiplexing non-orthogonal-multiple-access (OFDM-NOMA) and low-density-parity-check (LDPC). Three-layer successive-interference-cancellation (SIC) is experimentally demonstrated.
40-Gbit/s Mobile FSO with High-speed Beam Stabilizer and 2D-PDA-based Diversity Receiver for Support Robots
Authors: Weng Zu-Kai , Yoshida Yuki , Umezawa Toshimasa , Bekkali Abdelmoula , Hattori Michikazu , Matsumoto Atsushi , Kanno Atsushi , Yamamoto Naokatsu , Kawanishi Tetsuya , Akahane Kouichi
Published: May 2024

A mobile free-space optical system is experimentally demonstrated with high-speed beam stabilizer and 2D-photodetector array-based diversity receiver. In the 2.1-m line-of-sight link, the 400-mm/s zigzag-moving transmitter successfully transmits the 40-Gbit/s PAM-4 within 7% FEC criterion.
Collective die-to-wafer bonding enabling low-loss evanescent coupling for optically interconnected System-on-Wafer
Authors: Xu Pengfei , He Junwen , Kennes Koen , Dvoretskii Anton , Podpod Arnita , Lepage Guy , Golshani Negin , Magdziak Rafal , Bipul Swetanshu , Bode Dieter , Verheyen Peter , Chakrabarti Maumita , Velenis Dimitrios , Miller Andy , Ban Yoojin , Ferraro Filippo , Van Campenhout Joris
Published: May 2024

We present a collective PIC die-to-wafer dielectric bonding process, enabling SiN waveguide-based die-to-wafer evanescent couplers with insertion losses of 0.36 ±0.18dB at 1310nm wavelengths, paving the way to optically interconnected 300mm wafer-scale multi-chip compute systems.
The Role of Optical Networking in the 6G Era
Authors: Tomkos I. , Uzunidis D. , Moschopoulos K. , Christofodis C. , Papapavlou Ch. , Paximadis K. , Muñoz R. , Marom D. M. , Nazarathy M.
Published: May 2024

Sixth-generation (6G) networks will revolutionize the way we communicate and connect, with promises of higher data rate, lower latency and higher reliability. To efficiently support the 6G use cases and service requirements, the optical networking community needs to introduce a number of innovations at a component, system and control level. In this paper, we provide our view on these innovations and discuss their adaptation to the x-haul network.
Network for AI: Communication-Efficient Federated Learning with MST-based Scheduling and Multi-Aggregation over Optical Networks
Authors: Wang Ruikun , Zhang Jiawei , Ibrahimi Memedhe , Gu Zhiqun , Xiao Yuming , Musumeci Francesco , Tornatore Massimo , Ji Yuefeng
Published: May 2024

We propose a Minimum-Spanning-Tree-based scheduling and Multi-aggregation framework (MST-M) for communication-efficient Federated Learning. Simulation results show that MST-M saves over 10% in communication costs compared to existing heuristics.
Remote Entanglement of Quantum Memories over a Metropolitan Network
Authors: Assumpcao D. R. , Knaut C. M. , Suleymanzade A. , Wei Y.-C. , Stas P. -J. , Huan Y. Q. , Machielse B. , Knall E. N. , Sutula M. , Baranes G. , Sinclair N. , De-Eknamkul C. , Levonian D. S. , Bhaskar M. K. , Park H. , Loncar M. , Lukin M. D.
Published: May 2024

We generate remote entanglement between spatially separate color-center based quantum nodes at rates up to 1 Hz. In addition, we demonstrate remote entanglement across a deployed 35km long fiber loop in the Boston urban area.
Ultra-Fast Ge-on-Si Photodetectors
Authors: Lischke Stefan , Steckler Daniel , Peczek Anna , Morgan Jesse , Beling Andreas , Zimmermann Lars
Published: May 2024

A Ge-fin photodetector in which un-doped germanium is laterally sandwiched between complementary in situ-doped silicon is demonstrated, allowing for unprecedented 3-dB bandwidths up to 265 GHz. Here, we review our work on ultra-fast Ge photodiodes.
Type-II GaInAsSb/InP Modified Uni-Traveling Carrier Photodiodes Under Zero-Bias Operation
Authors: Chaudhary Rimjhim , Arabhavi Akshay M. , Hamzeloui Sara , Leich Martin , Ostinelli Olivier , Bolognesi Colombo R.
Published: May 2024

We report the first bias-free performance of Type-II modified GaInAsSb/InP UTC-PD for high-bandwidth and high-power applications. The UTC-PD achieves zero-bias bandwidth of 60 GHz and high output power of -11 dBm at 100 GHz.
110.7-Tb/s Single-Mode-Fiber Transmission over 1040 km with High-Symbol-Rate 144-GBaud PDM-PCS-QAM Signals
Authors: Hamaoka Fukutaro , Nakamura Masanori , Sasai Takeo , Sugawara Shuto , Kobayashi Takayuki , Miyamoto Yutaka , Yamazaki Etsushi
Published: May 2024

We demonstrate a 110.7-Tb/s net bitrate over 13×80-km low-water-peak G.652.D fiber transmission using a hybrid backward Raman amplifier and TDFA/EDFA in 18.3-THz triple-band WDM with an average 907.6-Gb/s/λ channel rate for 122-channel 144-GBaud PDM-PCS-16/64QAM signals.
Plasmonically Enhanced Optical Accelerator for Nonlinear Signal Processing Based on Artificial Neural Networks
Authors: Blatter Tobias , Zürrer Amane , Horst Yannik , Pappas Christos , Giamougiannis George , Tsakyridis Apostolos , Kohli Manuel , Koch Ueli , Moralis-Pegios Miltiadis , Pleros Nikos , Leuthold Juerg
Published: May 2024

We reconstruct a 48 Gbit/s nonlinearly distorted optical signal using an artificial neural network (ANN). The digital ANN execution exceeds traditional nonlinear equalizers, while its analog acceleration using plasmonic-organic-hybrid modulators surpasses conventional digital linear equalizers.
Optical Neural Networks with Tensor Compression and Photonic Memory
Authors: Xiao Xian , Cheung Stanley , Tossoun Bassem , Van Vaerenbergh Thomas , Kurczveil Geza , Beausoleil Raymond G.
Published: May 2024

This paper introduces our recent efforts on scalable, energy-efficient, and low-latency tensorized optical neural networks, including design considerations, options for wavelength-parallel photonic tensor cores, and photonic memory for non-volatile tuning.
EML-based Coherent Receiver for Low CSPR Single-Sideband Transmission Enabled by Injection Locking
Authors: Luo Siyu , Li Zhengxuan , Song Yingxiong
Published: May 2024

We propose a novel single-sideband self-coherent detection scheme employing an EML-based receiver and demonstrate a 6.5-dB sensitivity improvement compared with Kramers-Kronig receiver for the SSB 16-QAM signal transmission over 40-km SSMF.
Throughput Maximisation in Ultra-wideband Hybrid-amplified Links
Authors: Buglia Henrique , Sillekens Eric , Galdino Lidia , Killey Robert , Bayvel Polina
Published: May 2024

A semi-analytical, real-time nonlinear-interference model including ASE noise in hybrid-amplified links is introduced. Combined with particle-swarm optimisation, the capacity of a hybrid-amplified 10.5-THz 117x57-km link was maximised, increasing throughput by 12% versus an EDFAs-only configuration.
Parameter Estimation of Semi-Conductor Optical Amplifier Booster based on Digital Signal Processing
Authors: Eldahrawy Tarek , Hraghi Abir , Lorences-Riesgo Abel , Nguyen Trung-Hien , Demirtzioglou Iosif , Godard Loig , Hafermann Hartmut , Dahdah Nayla El , Zhao Yu , Frignac Yann , Charlet Gabriel
Published: May 2024

We propose a method for SOA characterization using conventional coherent transmission signals, including dual-polarization signals. Using 16QAM signals, we demonstrate that this method can be applied for several baudrates and wavelengths.
Low-Latency Physical-Layer Function Chaining Using Inter-Container Shared Memory for Fully Virtualized Access Networks
Authors: Suzuki Takahiro , Kim Sang-Yuep , Kani Jun-ichi , Yoshida Tomoaki
Published: May 2024

This paper proposes novel physical-layer function chaining utilizing inter-container shared memory for fully virtualized access systems. Our containerization of soft-warized 10G-EPON physical coding sublayer functions reduces latency from 1.56 ms to 0.408 ms.
Continuous Distributed Phase and Polarization Monitoring of Trans-Atlantic Submarine Fiber Optic Cable
Authors: Mazur Mikael , Fontaine Nicolas K. , Kelleher Megan , Kamalov Valey , Ryf Roland , Dallachiesa Lauren , Chen Haoshuo , Neilson David T. , Quinlan Franklyn
Published: May 2024

We perform submarine cable environmental sensing using an FPGA+GPU-based real-time polarization-resolved coherent OFDR prototype. Measurements of earthquake waves propagating across the Atlantic Ocean are recorded simultaneously at >70 evenly distributed points along the cable.
Earthquake Early Warning through Terrestrial Optical Networks: A Bi-GRU Attention Model Approach on SOP Data
Authors: Usmani Fehmida , Awad Hasan , Virgillito Emanuele , Bratovich Rudi , Straullu Stefano , Aquilino Francesco , Proietti Roberto , Pastorelli Rosanna , Curri Vittorio
Published: May 2024

We propose a smart grid fiber sensing approach based on a Bi-GRU model with an attention mechanism for earthquake early warnings exploiting terrestrial optical networks. Model training and testing use realistic synthetic earthquake waves.
Optical Fiber Sensing Network Control Plane Enabled by a Novel Sub µs Response Time Fiber Sensing Control Device
Authors: Szczerban Mijail , Mazur Mikael , Dallachiesa Lauren , Mardoyan Haïk , Bidkar Sarvesh , Ryf Roland , Simsarian Jesse
Published: May 2024

We propose and implement a novel fiber sensing control device and sensing control plane that controls backscatter and polarization-based fiber sensing. We experimentally demonstrate in a fiber network that this device achieves sub-µs response time.
Remote Sensing with High Spatial Resolution
Authors: Sandmann André , Azendorf Florian , Eiselt Michael H.
Published: May 2024

Distributed fiber sensing based on correlation-aided phase-sensitive optical time domain reflectometry is presented. The focus is on correlation as an enabler for high spatial resolution. Results from different applications are presented.
Is Ultra-High Order QAM Necessary for Delta-Sigma Modulator in Mobile Front-Haul?
Authors: Jian Yin-He , Chen Jian-Wen , Wang Chih-Chun , Wei Tzu-Chieh , Chow Chi-Wai , Yeh Chien-Hung
Published: May 2024

We propose a delta-sigma-modulator (DSM) using multi-stage-noise-shaping (MASH) structure. Record high efficiencies of 1.016 (hard-decision forward-error-correction, FEC) and 1.166 (soft-decision-FEC) are achieved in the proposed MASH-DSM without the need of ultra-high-order quadrature-amplitude-modulation (QAM).
W-Band Photonics-aided ISAC Wireless System Sharing OFDM Signal as Communication and Sensing
Authors: Liu Jiaxuan , Yu Jianjun , Zhao Xianming , Bian Chengzhen , Yang Xiongwei , Zhang Long , He Wenzhong , Long Jianyu , Zhang Yao , Zhang Yu , Ju Zhou , Wang Xinyi , Zhou Wen , Wang Kaihui , Zhao Feng
Published: May 2024

We experimentally demonstrate the dual functionality of OFDM signals for both communication and sensing. Photonics-aided ISAC system in W-band achieves range-Doppler imaging with 0.0102m resolution and data rate of 48.04 Gbit/s over wireless link.
Analog RoF Fronthaul Carrying 27.6-Tb/s CPRI-equivalent Rate and 512-QAM with Sideband Modulation for IQ Imbalance Separation and Bi-directional Transmission
Authors: Zhu Yixiao , Fang Xiansong , Zhang Chenbo , Xu Yicheng , Zhuge Qunbi , Xie Xiaopeng , Hu Weisheng , Zhang Fan
Published: May 2024

We leverage sideband modulation-based bidirectional scheme to separate the transmitter-side IQ imbalance and boost the SNR to 30.8dB. We experimentally demonstrate high-capacity coherent analog RoF fronthaul achieving 27.6Tb/s(=12λ×2.089Tb/s) CPRI-equivalent rate and 512-QAM over 10-km SSMF.
Fading-Free Integrated Digital and Analog RoF Fronthaul based on Dual-Drive MZM and Chirp Multiplexing
Authors: Zhu Yixiao , Fang Xiansong , Zhang Chenbo , Xu Yicheng , Yang Guangying , Zhuge Qunbi , Xie Xiaopeng , Zhang Fan , Hu Weisheng
Published: May 2024

We propose fiber dispersion fading-free integrated digital and analog radio-over-fiber fronthaul based on dual-drive MZM and chirp multiplexing. Single-wavelength co-transmission of 64-Gb/s PAM-4 and 6×1-GHz 64-QAM millimeter-wave signals is experimentally demonstrated over 10-km SSMF.
Recent Advances in Digital Longitudinal Monitoring of Fiber-Optic Link
Authors: Sasai Takeo , Takahashi Minami , Kaneko Runa , Sone Yoshiaki , Nakamura Masanori , Yamazaki Etsushi
Published: May 2024

We review digital longitudinal monitoring, particularly longitudinal power monitoring (LPM), which estimates fiber-longitudinal optical power at a coherent receiver. We highlight key experiments including precise LPM closely matching OTDR and its feasibility demonstration at operational powers.
Fiber Longitudinal Monitoring of Inter-band-SRS-induced Power Transition in S+C+L WDM Transmission
Authors: Kaneko Runa , Sasai Takeo , Hamaoka Fukutaro , Nakamura Masanori , Yamazaki Etsushi
Published: May 2024

We experimentally demonstrate the fiber-longitudinal power profile estimation (PPE) over the S+C+L band, which captures power transition in the propagation direction due to inter-band stimulated Raman scattering only using receiver-side signal processing.
Digital Vibration Detection and Localization using Carrier Laser Phase Noise Retrieval in a Conventional Coherent Transponder
Authors: Hu Yixiang , Mousa-Pasandi Mohammad E. , Gutiérrez-Castrejón Ramón , O’Sullivan Maurice , Kong Fanqi , Buscaino Brandon , Zhang Jinsong , Bernal Santiago , St-Arnault Charles , Plant David V.
Published: May 2024

We demonstrate digitally recovered carrier laser phase noise corrupted by vibration induced phase perturbations on signaling data without introducing ultranarrow linewidth lasers. We show >10 dB improvements in vibro-perturbation SNR versus bandpass filtering methods.
SDN Control of Multi-Band Over SDM Optical Networks With Physical Layer Impairments: OFC 2024 – Tutorial
Authors: Casellas Ramon , Martinez Ricardo , Vilalta Ricard , Muñoz Raul
Published: May 2024

This tutorial aims at presenting the key aspects in the design and development of control plane for Multi-Band over SDM optical networks following Software Defined Networking Principles. The tutorial will address system design considerations such as the systematic use of data modelling model driven development, will detail selected, industry adopted North Bound and South Bound interfaces for full and partially disaggregated networks and will introduce some advanced considerations such as accounting for Physical Layer Impairments, externalizing path computation and path validation functions or the multi-level control when considering the management of network media channels over dynamically switched spatial channels.
A 16 m High Bismuth-Doped Fiber Amplifier Provides 47.9 dB Gain in E+S-band
Authors: Liu Shaokun , Yin Xiaoke , He Le , Gu Zhimu , Li Wenzhen , Chen Yang , Xing Yingbin , Chu Yingbo , Dai Nengli , Li Jinyan
Published: May 2024

We report a bismuth-doped fiber with high bismuth active center concentration and low unsaturable loss, demonstrating a record 16m E+S-band bismuth-doped fiber amplifier with 47.9dB gain and gain per unit length of 4.06dB/m at 1450nm.
E-band transmission of 30-Gbaud PM-16-QAM supported by Neodymium-Doped Fiber Amplifier
Authors: Donodin Aleksandr , Kiani Leily , Noor Shabnam , Forysiak Wladek
Published: May 2024

We experimentally demonstrate the first E-band transmission through 50 km of G.652.D fiber using 30 Gbaud 16-QAM signals enabled by a neodymium doped fiber amplifier with 14 dB gain and 5 dB noise figure.
Gain optimization of Er-doped fibers doped with Er:BaF2 nanoparticles
Authors: Campbell Jennifer , Cahoon Mary Ann , Gachich Michael , Norlander Michael , Hawkins Thomas , Ballato John , Dragic Peter
Published: May 2024

An Er:BaF2 nanoparticle doped silica fiber (EDF) heavily doped with erbium exhibits mitigated quenching effects and possesses a high quantum efficiency (976 nm pumping). Investigations herein suggest the erbium concentration is scalable to 1 wt%.
Low-Complexity 4D×D MIMO Equalizer Enabling 2.6-Tb/s/λ SDM Signal Reception over Dynamic Four-Coupled-Core Cabled Transmission Line
Authors: Kawai Akira , Shibahara Kohki , Nakamura Masanori , Kobayashi Takayuki , Mori Takayoshi , Imada Ryota , Sakamoto Taiji , Yamada Yusuke , Nakajima Kazuhide , Miyamoto Yutaka
Published: May 2024

We propose a transceiver-impairment-tolerant 4D×D multiple-input/multiple-output equalizer with significantly reduced computational overhead and improved tracking performance for spatial-division-multiplexed receivers and demonstrated it in a 100-Gbaud transmission over a cabled four-coupled-core transmission line with MHz-class fluctuation.
20 GHz Silicon Integrated Optical Ternary Content Addressable Memory (CAM) Cell
Authors: Giamougiannis George , Pappas Christos , Moschos Theodoros , Tsakyridis Apostolos , Moralis-Pegios Miltiadis , Vagionas Christos , London Yanir , Van Vaerenbergh Thomas , Tossoun Bassem , Pleros Nikos
Published: May 2024

We propose and experimentally demonstrate an optical ternary content addressable memory cell operating at a record-high search speed of 20 Gb/s on a silicon photonic coherent Crossbar array with an energy efficiency of 0.2 pJ/bit.
A Novel Machine Learning-based Equalizer for a Downstream 100G PAM-4 PON
Authors: Shao Chen , Giacoumidis Elias , Li Shi , Li Jialei , Färber Michael , Käfer Tobias , Richter André
Published: May 2024

A frequency-calibrated SCINet (FC-SCINet) equalizer is proposed for downstream 100G PON with 28.7 dB path loss. At 5 km, FC-SCINet improves the BER by 88.87% compared to FFE and a 3-layer DNN with 10.57% lower complexity.
Multiplication-Free Equalization Schemes for 244-Gbps PAM-4 Transmission
Authors: Xie Fei , Huang Xiaoqian , Liu Shuangyue , Tang Du , Wang Zhengkang , Qiao Yaojun
Published: May 2024

We propose a multiplication-free equalization scheme using cluster-assisting lookup tables (CLUT). Results demonstrate an 11-order table size reduction compared to traditional LUTs, incurring only a 0.2-dB penalty.
Single-Mode Coherent Transmission over Universal Fiber for Data Center Interconnects
Authors: Barbosa Fabio A. , Rodigheri Mareli , Lennard Samuel , Li Ming-Jun , Ferreira Filipe M.
Published: May 2024

We demonstrate DP-16-QAM up to 42 Gbaud over 50 km of universal fiber, meeting current DCI requirements while allowing SDM upgrades. Multipath interference is analyzed experimentally using mandrel wrapping and matched by split-step simulation.
Experimental Demonstration of In-Field 400G Coherent Metro-Access Convergence
Authors: Rizzelli G. , Casasco M. , Pagano A. , Ferrero V. , Gaudino R.
Published: May 2024

We present an experimental demonstration and analytical scaling of optically amplified metro combined with PON access transmission over installed fibers, using coherent 50GBaud PM-16QAM and discuss the technical feasibility of future 400G metro-access convergence.
Will a metro-access optical continuum ever fly? deployment challenges and enabling technologies
Authors: Cavaliere Fabio , Percelsi Alessandro
Published: May 2024

We discuss optical continuum techniques to cut the total cost of ownership of telecom operators optical networks, and review enabling photonic technologies, particularly focusing on recent advances of silicon photonics-based reconfigurable optical add drop multiplexers.
Wideband FTTR PON Integrating Optical Wireless Access
Authors: Schrenk Bernhard
Published: May 2024

Symmetric 10 Gb/s wired access is shown in co-existence with 15 Gb/s optical wireless and 1.9 Gb/s visible-light communication. Shortwave-blind FTTR operation and robust few-mode transmission over installed fiber loops are demonstrated.
Large-Scale Network Field Trial Demonstrating the Evolution of 10G EPON to 50G PON Using Two-Generation Multi-PON Modules
Authors: Zhang Dezhi , Jin Jialiang , Wang Jianglong , Liu Dekun , Nesset Derek
Published: May 2024

We report the first large-scale network field trial demonstrating the evolution of 10G EPON to 50G PON using a newly two-generation multi-PON module, which validates the sustainable evolution for mass 10G EPON networks.
Breaking the interconnection limit by integrating CMOS electronics on PICs
Authors: Zanetto F. , Crico M. , Martinez A. , Toso F. , Morichetti F. , Melloni A. , Ferrari G. , Sampietro M.
Published: May 2024

We demonstrate the integration of electronic functionalities into state-of-the-art photonic platforms with zero changes to the technology. This enables time-multiplexed closed-loop control of programmable silicon photonic meshes with a reduced number of electrical interconnections.
Integrated Photonic Resonant Modulator-Based Equalization and Optimization for DWDM
Authors: Novick Asher , Hattink Maarten , Rizzo Anthony , Wang Yuyang , Gopal Vignesh , Wang Songli , Parsons Robert , Bergman Keren
Published: May 2024

We perform multi-wavelength signal equalization and optimization in a DWDM SiPh link by adjusting the operating regime of integrated resonant modulators. An effective increase in the optical link’s dynamic range of >3 dB is measured.
A 7×4 Silicon Photonic Reconfigurable Optical Analog Processor with Algorithmic Calibration
Authors: Shawon Md Jubayer , Saxena Vishal
Published: May 2024

This work presents a large-scale 7x4 square optical mesh-based programmable analog optical processor, or optical FPGA, fabricated in a standard CMOS-compatible foundry. The processor employs an electronic backend with optimized on-chip monitors and microheaters for algorithmic calibration for the automatic configuration of optical circuits.
Multi-Section Partially-Corrugated-Grating DFB Lasers for Achieving High Power, Low Noise, and Narrow Linewidth
Authors: Sulikhah Siti , Malicsi Dela Cruz Kryzchel Anne , Lee San-Liang , Tu Charng-Gan , Jang Ing-Fa , Shiao Hung-Pin , Wu Chao Hsin , Yen Hsiang-Chun
Published: May 2024

A novel DFB laser structure with multi-section partially-corrugated-gratings (PCG) is demonstrated with enhanced output power, reduced noise, and reduced linewidth, resulting from the equalized photon density in the laser cavity by the partitioned partial gratings.
Ultra-Efficient Interleaved Vertical-Junction Microdisk Modulator with Integrated Heater
Authors: Novick Asher , Wang Songli , Rizzo Anthony , Gopal Vignesh , Bergman Keren
Published: May 2024

We demonstrate a vertical-junction microdisk modulator with interleaved RF contacts and doped-silicon heater. We measure a resonance ER=36.5 dB, FSR=27.15 nm, and open eye diagrams at 32 Gb/s NRZ with 800 mV peak-to-peak driving signal.
Photonic Physically Unclonable Functions using Ring-Assisted Contra-Directional Couplers
Authors: Mahdian Mohammad Amin , Taheri Ebadollah , Mojaver Kaveh (Hassan) Rahbardar , Nikdast Mahdi
Published: May 2024

We demonstrate a novel silicon-photonic-based Physically Unclonable Function (PUF) using grating-assisted contra-directional couplers integrated with perforated mi-croring resonators. In the worst-case scenario, our device exhibits at least a 0.18 Hamming distance from the destined PUF.
Compact Hybrid-Integrated Multi-Wavelength O-Band Laser Source using Photonic Wire Bonding
Authors: Rosborough Victoria , Musolf Juergen , Liu Thomas , Garrett Henry , Kebort Don , Penniman Steve , Gavigan Devon , Grant Hannah , Wagner Sabrina , Morrison Gordon , Johansson Leif , Mašanović Milan
Published: May 2024

We present an O-band multi-wavelength source for wavelength division multiplexed optical transceivers. The source architecture comprises a monolithic DFB laser array hybrid-integrated with a Si3N4 star coupler via photonic wire bonds. The prototype source outputs an eight-wavelength comb into each of eight output fibers.
Experimental Analysis of Receiver Failure For 19-Core Randomly Coupled Core Fibre Transmission
Authors: van den Hout Menno , Ospina Ruby S. B. , Luís Ruben S. , Puttnam Benjamin J. , Di Sciullo Giammarco , Hayashi Tetsuya , Inoue Ayumi , Nagashima Takuji , Gross Simon , Ross-Adams Andrew , Withford Michael J. , Sakaguchi Jun , Mello Darli A. A. , Antonelli Cristian , Furukawa Hideaki , Okonkwo Chigo , Rademacher Georg
Published: May 2024

We experimentally investigate the impact of the failures of spatial channel receivers on the transmission performance of a randomly coupled 19-core fiber system. Severe penalties are observed when a spatial channel receiver fails.
Experimental demonstration of robust spatial-diversity combining for coherent free-space optical transmission
Authors: Johst Abraham , Nölle Markus , Molle Lutz , Perlot Nicolas , Rohde Michael , Freund Ronald
Published: May 2024

Spatial-diversity schemes are applied to improve signal quality of coherent free-space optical transmission systems with uncorrelated phase noise. We compare the performance of conventional schemes (MRC, SDC) to a newly proposed one (X-MRC).
Efficient Inter-Channel Interference Monitoring using DSP in Standard Coherent Receivers
Authors: Minelli Leonardo , Bosco Gabriella , Nespola Antonino , Straullu Stefano , Piciaccia Stefano , Pilori Dario
Published: May 2024

We experimentally demonstrate an efficient Optical Performance Monitoring algorithm, based on a Machine Learning-assisted Digital Signal Processing scheme suit- able for standard coherent receivers, for estimating asymmetric cross-talk between adjacent WDM channels.
Optimizing Key Consumption in Switched QKD Networks
Authors: Christodoulopoulos K. , Makris N. , Kanellos G. T. , Syvridis D.
Published: May 2024

We consider a switched QKD network and develop a novel scheduling algorithm that periodically configures the QKD links to optimize the generation and buffering of keys to maximize the key consumption rate across the network.
3D Freeform Millimeter-Wave and THz Structures Based on Multi-Photon Lithography
Authors: Maier Pascal , Kotz Alexander , Hebeler Joachim , Zhang Qiaoshuang , Benz Christian , Quint Alexander , Kretschmann Marius , Harter Tobias , Randel Sebastian , Lemmer Uli , Freude Wolfgang , Zwick Thomas , Koos Christian
Published: May 2024

We exploit high-resolution multi-photon lithography for fabricating 3D-freeform millimeter-wave and THz structures that overcome the limitations of conventional planar architectures. We demonstrate THz probes, suspended antennas, and ultra-broadband chip-chip interconnects offering bandwidths in excess of 0.3 THz.
Low-Divergent 940-nm Photonic-Crystal Surface-Emitting Laser for Short-Reach Free-Space Data Link
Authors: Cheng Chih-Hsien , Chen Po-Lun , Ho Pin-Wei , Hong Yu-Heng , Chen Shih-Chen , Chang Shu-Wei , Wu Chao-Hsin , Kuo Hao-Chung , Matsumoto Atsushi , Akahane Kouichi , Lin Gong-Ru
Published: May 2024

The photonic-crystal-structured surface-emitting laser with a low-divergent-beam angle of 4.5 mrad can perform either 5.5-Gbit/s NRZ-OOK, or 16-Gbit/s broadband QAM DMT or 19.2-Gbit/s bit-loaded DMT formats for 30-cm short-reach point-to-point free-space-optical communication link.
Reconfigurable Photonic Integrated Reservoir for Different Baud-Rate PAM-4 Signal Recognition
Authors: Liu Kailai , Zhu Ying , Chang Siyao , Lei Ming , Yang Chao , Wang Qiansheng , Xiao Xi
Published: May 2024

A reconfigurable photonic integrated reservoir based on Mach-Zehnder Interferometer nodes is proposed. It can be programmed to adapt to different baud-rate IMDD systems for PAM-4 signal recognition. The photonic reservoir-based receivers can achieve a lower bit error rate and consume 0.5 × power compared to their conventional electronic counterparts.
Denoising in Mode Conversion by Utilizing Diffractive Deep Neural Networks Optimized with Reinforcement Learning
Authors: Li Zheng , Zhang Wenbo , Wang Yang , Peng Guanju , Li Zongze , Zhou Xiaoyan , Zhang Lin
Published: May 2024

We propose a reinforcement-learning-optimized nonlinear physical diffractive neural network, which can simultaneously perform OAM-mode and LP-mode conversion with Gaussian noise removal. The PSNR and SSIM of the converted modes reach 27.94 dB and 0.838, respectively.
Cryogenic Ge-on-Si avalanche photodiodes operating at 1550 nm wavelength
Authors: Liu Xiaofei , Liu Jingchuan , He Funan , Ma Ruyuan , Zhao Xingyan , Zhong Qize , Dong Yuan , Hu Ting
Published: May 2024

We report the first demonstration of Ge-on-Si APD for 1550 nm wavelength photodetection at the cryogenic temperature down to 11 K, with I
dark
=0.369 μA, R=4.84 A/W and G=1840 at V
bias
= −20.8 V.
Mode Division Multiplexed Coherent Optical Transmission in Time Domain by Using Higher-order Hermite-Gaussian Pulses
Authors: Nakazawa Masataka , Yoshida Masato , Hirooka Toshihiko
Published: May 2024

We propose a new mode-division-multiplexing (MDM) technique in time-domain using higher-order Hermite-Gaussian pulses. 32-QAM, 450-km MDM transmission was successfully demonstrated with HG0, HG1, HG2, and HG3 pulses, where the time-domain orthogonality was used for demultiplexing.
New GAWBS Noise Interacting with Longitudinally Propagating Acoustic Waves in Few-mode Fibers
Authors: Yoshida Masato , Hirai Takaaki , Beppu Shohei , Kasai Keisuke , Hirooka Toshihiko , Nakazawa Masataka , Wakayama Yuta , Yoshikane Noboru
Published: May 2024

We describe the GAWBS noise characteristics in few-mode fibers (FMFs). We found that the GAWBS noise is newly generated due to an interaction between different LP modes through longitudinally propagating acoustic waves.
Super Wide-Flat Beam Transmission over Scatter-prone Underwater Channel Using Twin Parallel Flat-Narrow Beams Generated by Aspheric Lens Pair-type Beam Shaper
Authors: Ishikawa Tomoya , Kariya Ayumu , Kobori Fumiya , Tanaka Keita , Kodama Takahiro
Published: May 2024

Our experiments demonstrate that the use of a twin flat-narrow beam system with time-domain hybrid PAM signals in underwater channels of up to 4 m significantly improves the elastic transmission capacity from 625-Mbps to 1.25-Gbps.
60+60 km Weakly-coupled MDM-WDM Transmission Enabled by 4-LP-mode FM-EDFA
Authors: Huang Shuailuo , Qiao Gang , Gao Yuyang , Zuo Mingqing , Zhu Jing long , Shen Lei , Ding Yuanpeng , Zhang Lei , Luo Jie , He Yongqi , Chen Zhangyuan , Li Juhao
Published: May 2024

A 4-LP-mode FM-EDFA utilizing multiple-ring-core FM-EDF is designed and fabricated to support weakly-coupled MDM transmission, based on which 60+60 km simultaneous LP01/LP11/LP21/LP02 MDM-WDM transmission is experimentally demonstrated only adopting 2×2 or 4×4 MIMO-DSP.
Air/Water Path Switching with Beam Steering for Water Distance/Turbidity Adaptive Underwater Optical Wireless Communication Network: Concept and Demonstration
Authors: Kuwahara Kiichiro , Nagami Hyuga , Tanaka Keita , Kobori Fumiya , Kariya Ayumu , Hayashida Shogo , Kodama Takahiro
Published: May 2024

We conducted full-duplex class 1 eye-safe transmission experiments, including 4K video demonstrating robust connectivity to maximize transmission capacity under optimal paths by introducing aerial relay nodes within underwater optical wireless communication networks in shallow seas.
A low-complexity 64QAM-based probabilistically shaped OFDM for W-band RoF system
Authors: Zhang Long , Wang Kaihui , Liu Jiaxuan , Yang Xiongwei , Chen Ming , Wang Chen , Sang Bohan , Wang Yikai , Zhao Li , Zhou Wen , Yu Jianjun
Published: May 2024

We experimentally demonstrated a low-complexity probabilistic shaping (PS) 64QAM-OFDM in an IM-DD-based W-band RoF System. After 45-km SSMF and 4-m wireless transmission, the experimental results show that its receiver sensitivity is better than that of uniformly distributed-OFDM (UD-OFDM).
Integrated Coherent Transmit-Receive Optical Sub-Assembly (IC-TROSA) for 140 GBd Applications
Authors: Rouvalis Efthymios , Domburg Patrick , Honecker Jörg , Stephan Jens , Harbs Christopher , Henkel Johann , Technau Ulrich , Varon Andrés , Wissig Sebastian , Clarici Georg , Berger Matthias
Published: May 2024

We report on a high output power (>0 dBm), integrated coherent transmit-receive optical sub-assembly (IC-TROSA) integrating all electro-optical and control functions for single-carrier, coherent transmission up to 800 Gb/s.
Universal Optical Logic Gates on a Programmable Silicon Photonic Platform
Authors: Ashtiani Farshid
Published: May 2024

We propose and demonstrate the implementation of NOT, OR/NOR, and AND/NAND logic gates compatible with integrated photonics. Using a programmable photonic platform consisting of a Mach-Zehnder interferometer mesh, universal logic gates are experimentally demonstrated.