bluuebunny/crossref_metadata_2025 huggingface dataset:
Inducing robustness and plausibility in deep learning optical 3D printer models
Authors: Chen Danwu , Urban Philipp
Published: April 2022

Optical 3D printer models characterize multimaterial 3D printers by predicting optical or visual quantities from material arrangements or tonal values. Their accuracy and robustness to noisy training data are crucial for 3D printed appearance reproduction. In our recent paper [ Opt. Express 29, 615 (2021)10.1364/OE.410796 ], we have proposed a pure deep learning (PDL) optical model and a training strategy achieving high accuracy with a moderate number of training samples. Since the PDL model is essentially a black-box without considering any physical grounding, it is sensitive to outliers or noise of the training data and tends to create physically-implausible tonal-to-optical relationships. In this paper, we propose a methodology to narrow down the degrees-of-freedom of deep-learning based optical printer models by inducing physically plausible constraints and smoothness. Our methodology does not need any additional printed samples for training. We use this approach to introduce the robust plausible deep learning (RPDL) optical printer model enhancing robustness to erroneous and noisy training data as well as physical plausibility of the PDL model for selected tonal-to-optical monotonicity relationships. Our experiments on four state-of-the-art multimaterial 3D printers show that the RPDL model not only almost always corrects implausible tonal-to-optical relationships, but also ensures significantly smoother predictions, without sacrificing accuracy. On small training data, it even outperforms the PDL model in accuracy by up to 8% indicating a better generalization ability.
10 Gbps Laser Communication for Low Earth Orbit Satellites with Volterra and Machine Learning Nonlinear Compensation Providing Link Budget up to 74 dB
Authors: Cai Yi-Jun , Yu Shao-Hung , Huang Zheng-Wei , Wang Yu-Wei , Ting Pin-Hsuan , Lan Yu-Pin , Fang Chen-Joe , Lin Hsin-Chia , Chen Bor-Chwan , Lin Chun-Ting
Published: April 2022

We invesigate the power-link budget of 10Gbps laser communication. The comparison of the DML nonlinearity effects between OFDM and SC-FDE is discussed. With Volterra and machine-learning nonlinear compensation, the power-link budget achieve up to 74 dB.
Delivery of 103.2 Gb/s 4096QAM signal over 180m wireless distance at D-band Enabled by Truncated Probabilistic Shaping and MIMO Volterra Compensation
Authors: Li Weiping , Wang Yanyi , Ding Junjie , Liu Jiaxuan , Wang Kaihui , Wang Feng , Wang Chen , Zhao Li , Liu Cuiwei , Zhou Wen , Yu Jianguo , Zhao Feng , Yu Jianjun
Published: April 2022

We experimentally demonstrated the delivery of 103.2 Gb/s 4096QAM signal over 180m wireless distance at D-band employing truncated probabilistic shaping and MIMO Volterra Compensation, with the value of NGMI exceeds the threshold of 0.83
Mobile 14-GHz Bandwidth Fronthaul Link Supporting 128 RF-Chain Signals for 6G Ma-MIMO Beamforming
Authors: Huang Yu-Jen , Lin Guan-Ting , Ting Pin-Hsuan , Huang Zheng-Wei , Yu Shao-Hung , Cai Yi-Jun , Wei Chia-Chien , Chi Sien , Lin Chun-Ting
Published: April 2022

We demonstrate fronthual links with delay-division-multiplexing 14-GHz bandwidth 64- QAM OFDM for 128 RF-chain signals. The corresponding CPRI-based capacity is 860.16 Gb/s. With I/Q Volterra nonlinear compensation, EVMs can be improved from 7.5% to 6%.
Comparison of transfer matrix stability between a 110 km 7-core coupled-core multi-core fiber and single-mode fiber
Authors: Mazur Mikael , Fontaine Nicolas K. , Corteselli Steve , Chen Haoshuo , Dallachiesa Lauren , Hayashi Tetsuya , Sakuma Hirotaka , Hasegawa Takemi , Ryf Roland , Neilson David T.
Published: April 2022

We use dual-comb spectroscopy to compare the stability and wavelength dependence of mode coupling in a 110 km coupled multi-core and a regular single-mode fiber. Phase and intensity fluctuations are compared, revealing differences in coupling dynamics.
SDM Enabled Record Field Trial Achieving 300+ Tbps Trans-Atlantic Transmission Capacity
Authors: Varughese Siddharth , Edirisinghe Sumudu , Stephens Marc , Boyanov Buen , Mertz Pierre
Published: April 2022

A per fiber-pair real-time capacity of 25.6 Tbps is demonstrated with 0.5 dB Q-factor commissioning margin across 6611 km of SDM enabled trans-Atlantic link aggregating to a record 307.2 Tbps on a single submarine cable.
Neural Network-based Fiber Nonlinearity Mitigation in High-speed Coherent Optical Transmission Systems
Authors: Zhang Fan , Fang Xiansong , Chen Xinyu
Published: April 2022

In this paper, we review the recent progress of neural network-based Kerr nonlinearity mitigation techniques in high-speed coherent optical fiber transmission systems. Current studies in both single-carrier and nonlinear frequency division multiplexing systems are discussed.
Efficient Training of Volterra Series-Based Pre-distortion Filter Using Neural Networks
Authors: Bajaj Vinod , Chagnon Mathieu , Wahls Sander , Aref Vahid
Published: April 2022

We present a simple, efficient “direct learning” approach to train Volterra series-based digital pre-distortion filters using neural networks. We show its superior performance over conventional training methods using a 64-QAM 64 GBaud simulated transmitter with varying transmitter nonlinearity and noisy conditions.
16-bit (4×4) Optical Random Access Memory (RAM) Bank
Authors: Pappas Christos , Moschos Theodoros , Alexoudi Theoni , Vagionas Christos , Pleros Nikos
Published: April 2022

A complete 16-bit all-optical RAM bank capable of storing 4×4-bit WDM-formatted optical data words at a 20Gb/s memory-throughput is experimentally presented for the first time, using sixteen 5Gb/s monolithic InP Flip-Flops and all-passive Row/Column Decoding circuits.
Scalable and Fast Optical Circuit Switch Exploiting Colorless Coherent Detection
Authors: Matsumoto Ryosuke , Konoike Ryotaro , Suzuki Keijiro , Inoue Takashi , Namiki Shu , Sato Ken-ichi
Published: April 2022

We present a scalable and fast wavelength-routing switch employing colorless coherent detection. Some thousand port-count and a few microsecond switching time are realized by using a Silicon-Photonic tunable-filter-based local oscillator bank that enables colorless detection.
Frequency Comb and Injection Locking Based Mutual Protections in Coherent Optical Access Network
Authors: Zhang Haipeng , Xu Mu , Jia Zhensheng , Campos Luis Alberto
Published: April 2022

A P2MP coherent network features mutual protection between adjacent networks, and remote delivery of optical carriers that are injection locked to an optical frequency comb is proposed. System functionality and performance has been verified experimentally.
Photonic Integrated Unitary Processor based on Multi-Plane Light Conversion
Authors: Tanemura Takuo , Tang Rui , Tanomura Ryota , Nakano Yoshiaki
Published: April 2022

Recent progress of developing universal optical unitary processors (OUPs) based on the concept of multi-plane light conversion (MPLC) is reviewed. The inherent redundancy of MPLC provides unique scalability and excellent robustness against fabrication imperfectness, enabling large-scale OUPs integrated on silicon and InP platforms.
Hollow-core fiber capacities with receiver noise limitations
Authors: Klaus Werner , Winzer Peter J.
Published: April 2022

Hollow-core fiber promises low loss and low nonlinearity over wide operational bandwidths. However, considering realistic transponder noise floors reveals much lower capacity gains over standard single-mode fiber than generally assumed, even for optimistic fiber designs.
A 106 Gb/s 2.5 Vppd Linear Microring Modulator Driver with Integrated Photocurrent Sensor in 28nm CMOS
Authors: Li Hao , Sakib Meer Nazmus , Huang Duanni , Kumar Ranjeet , Rong Haisheng , Balamurugan Ganesh , Jaussi James
Published: April 2022

A low-power CMOS linear driver IC, optimized for microring modulator-based co-packaged optics, is presented. This 2.5 Vppd driver, assembled with a photonic IC, achieves 2 dB TDECQ at 106 Gb/s PAM4 with 1.33 pJ/bit efficiency.
A Low-power, 128-Gbit/s, DC-coupled linear driver IC for Electro-absorption Modulated DFB Laser
Authors: Misawa Taichi , Sugimoto Yoshiyuki , Tanaka Keiji
Published: April 2022

We demonstrate a 128-Gbit/s/λ optical transmitter with newly developed DC-coupled linear driver IC for electro-absorption modulator. High-quality PAM-4 eye diagram with higher extinction ratio is obtained with low-power consumption, which is suitable for 100G-LR1/ER1 application.
180 GBd Electronic-Plasmonic IC Transmitter
Authors: Moor David , Fedoryshyn Yuriy , Langenhagen Henning , Müllrich Jens , Schmid Rolf , Uhl Christopher , Möller Michael , Koch Ueli , Horst Yannik , Bitachon Bertold I. , Heni Wolfgang , Baeuerle Benedikt , Destraz Marcel , Xu Huajun , Delwin L. Elder , Johnson Lewis E. , Bakopoulos Paraskevas , Mentovich Elad , Zimmermann Lars , Leuthold Juerg
Published: April 2022

A monolithically integrated plasmonic SiGe-BiCMOS electronic transmitter operating at 180 GBd is demonstrated. Such compact high-speed electronic-photonic integrated circuit (EPIC) transmitters are key components for future high-performance computing (HPC) and data center interconnects (DCI).
High performance thin-film lithium niobate MZ modulator ready for massive production
Authors: Li Heng , Chen Quanan , Liu Ye , Tang Yongqian , Lu Qiaoyin , Lu Mingzhi , Guo Weihua
Published: April 2022

Through photolithography we fabricated high-performance thin-film lithium niobate modulators on full 4-inch wafers with low VπL, wide bandwidth and low insertion loss. The waveguide loss is one of the lowest among similar work.
Ultra Compact Athermal 400G-FR4 Silicon Photonics Receiver with Polarization Diversity
Authors: Ohta Atsunobu , Atlas Dogan A. , Timurdogan Erman , Deckoff-Jones Skylar , Watts Mike R. , Komoto Michihiro , Honda Hironori , Yoshimoto Naoto
Published: April 2022

We have successfully demonstrated an ultra-compact WDM 400G-FR4 ROSA module integrated with silicon photonics circuits operating at 53.125Gbaud PAM4 signal with a sensitivity of -6.0dBm optical modulation amplitude at KP4 Pre-FEC-BER=2.4e-4.
Optical Network Sensing: Opportunities and Challenges
Authors: Cantono Mattia , Castellanos Jorge C. , Batthacharya Shirshendu , Yin Shuang , Zhan Zhongwen , Mecozzi Antonio , Kamalov Valey
Published: April 2022

The scientific community is exploring complementary applications for optical fiber networks. We review recent developments in seismic sensing and discuss the challenge of telemetry pipelines to enable novel fundamental science and wider societal benefits.
Transoceanic Phase and Polarization Fiber Sensing using Real-Time Coherent Transceiver
Authors: Mazur M. , Castellanos J. C. , Ryf R. , Börjeson E. , Chodkiewicz T. , Kamalov V. , Yin S. , Fontaine N. K. , Chen H. , Dallachiesa L. , Corteselli S. , Copping P. , Gripp J. , Mortelette A. , Kowalski B. , Dellinger R. , Neilson D. T. , Larsson-Edefors P.
Published: April 2022

We implement a real-time coherent transceiver with fast streaming outputs for environmental sensing. Continuous sensing using phase and equalizer outputs over 12800 km of submarine cable enabled time resolved interferometry in broad spectral range of 10 mHz-1 kHz.
Vibration Detection and Localization in Buried Fiber Cable after 80km of SSMF using Digital Coherent Sensing System with Co-Propagating 600Gb/s WDM Channels
Authors: Guerrier Sterenn , Benyahya Kaoutar , Dorize Christian , Awwad Elie , Mardoyan Haik , Renaudier Jérémie
Published: April 2022

We report detection-localization-identification of true mechanical events on a buried fiber cable up to 82km SSMF using a digital sensing system copropagating with adjacent 600Gb/s WDM channels. Non-intrusive coexistence with WDM channels is demonstrated.
Perimeter Intrusion Detection with Backscattering Enhanced Fiber Using Telecom Cables as Sensing Backhaul
Authors: Wellbrock Glenn A. , Xia Tiejun J. , Huang Ming-Fang , Fang Jian , Chen Yuheng , Narisetty Chaitanya , Peterson Daniel , Moore James M. , Scarpaci Annabelle , Westbrook Paul , Li Jie , Lingle Robert , Wang Ting , Aono Yoshiaki
Published: April 2022

We report field test results of facility perimeter intrusion detection with distributed-fiber-sensing technology and backscattering-enhanced-fiber by using deployed telecom fiber cables as sensing backhaul. Various intrusive activities, such as walking/jumping at >100ft distance, are detected.
Advanced Fiber Sensing Leveraging Coherent Systems Technology for Smart Network Monitoring
Authors: Dorize Christian , Guerrier Sterenn , Awwad Elie , Benyahya Kaoutar , Mardoyan Haik , Renaudier Jérémie
Published: April 2022

We show that coherent technology developed in the past decade for transmission over core optical networks can benefit to Distributed Fiber Sensing technology in various fields as sensitivity, sensing range, and coexistence with data traffic.
Comparison of Models for Training Optical Matrix Multipliers in Neuromorphic PICs
Authors: Cem A. , Yan S. , de Moura U.C. , Ding Y. , Zibar D. , Da Ros F.
Published: April 2022

We experimentally compare simple physics-based vs. data-driven neural-network-based models for offline training of programmable photonic chips using Mach-Zehnder interferometer meshes. The neural-network model outperforms physics-based models for a chip with thermal crosstalk, yielding increased testing accuracy.
Partial Response O-band EML Transmission Beyond 300-GBd with a 128/256 GSa/s DAC
Authors: Hossain Md Sabbir-Bin , Rahman Talha , Stojanović Nebojša , Pittalà Fabio , Calabrò Stefano , Böcherer Georg , Wettlin Tom , Wei Jinlong , Xie Changsong , Kuschnerov Maxim , Pachnicke Stephan
Published: April 2022

We experimentally compared 128 and 256-GSa/s DACs using partial response signaling. Transmission of 310-GBd OOK is demonstrated with a single 128 GSa/s DAC for up to 5-km without optical amplification (net 268.84Gb/s, AIR ≈ 300Gb/s).
Real-Time Feedforward Clock Recovery for Optical Burst-Mode Transmission
Authors: Matalla Patrick , Mahmud Md Salek , Füllner Christoph , Freude Wolfgang , Koos Christian , Randel Sebastian
Published: April 2022

We compare three feedforward non-data-aided clock recovery algorithms suitable for burst-mode reception in PONs and datacenters. Our experimental setup allows real-time OOK transmission at 3 Gbit/s. The tolerable clock frequency mismatch is 475 ppm.
Single-span IM/DD Transmission over 120-km SMF with a Silicon Photonic Mach-Zehnder Modulator and THP
Authors: Li Jingchi , Wang Zhen , Li Xingfeng , Su Yikai
Published: April 2022

We experimentally demonstrate up to 120-km dispersion-uncompensated transmission in a SiP MZM-based IM/DD system. 28/42-Gbaud DSB PAM4 signal is transmitted over 80/120-km SMF enabled by Tomlinson-Harashima precoding and receiver-side linear equalization.
Simplified TC-MLSE Equalizer for 210-Gb/s PAM-8 Signal Transmission in IM/DD Systems
Authors: Zhou Jiahao , Zhang Jing , Zhao Xue , Jiang Wenshan , Hu Shaohua , Zhu Mingyue , Qiu Kun
Published: April 2022

We propose and experimentally demonstrate a trellis-compression MLSE in a 210-Gb/s PAM-8 signal transmission over 2-km SSFM transmission. We find TC-MLSE can reduce the complexity by 98% with only 0.2-dB penalty compared with conventional MLSE.
Implementation of Digital Chaotic Encryption in THz Wireless Communication
Authors: Wang Feng , Zhu Bowen , Liu Cuiwei , Wang Kaihui , Zhang Jiao , Ding Junjie , Shi Junting , Wang Chen , Zhao Li , Kong Miao , Wang Yanyi , Zhou Wen , Zhu Min , Yu Jianguo , Zhao Feng , Yu Jianjun
Published: April 2022

We implement a digital chaos-based encryption scheme in a photonics-aided terahertz radio-over-fiber (ROF) system operating at 340 GHz. The encrypted PS-64QAM-OFDM signal is successfully transmitted over 20 km SSMF and 54 m wireless link.
Over-67-GHz-bandwidth Membrane InGaAlAs EADFB Laser on Si Platform
Authors: Hiraki Tatsurou , Aihara Takuma , Maeda Yoshiho , Fujii Takuro , Sato Tomonari , Tsuchizawa Tai , Takahata Kiyoto , Kakitsuka Takaaki , Matsuo Shinji
Published: April 2022

A membrane InGaAlAs electro-absorption modulator with an over 67-GHz bandwidth is integrated with a DFB laser on a Si platform. The integrated device shows a dynamic extinction ratio of 3.8 dB for 100-Gbit/s non-return-to-zero signals.
Uncooled 100 GBd O-Band EML for Datacom Transmitter Arrays
Authors: Troppenz Ute , Theurer Michael , Moehrle Martin , Sigmund Ariane , Gruner Marko , Schell Martin
Published: April 2022

100 GBd is demonstrated from 30°C to 70°C with O-Band InP EML array chips. Modulation bandwidths are above 50 GHz, and an integrated SOA ensures 10 dBm, while a single active layer allows for cost effective manufacturing.
Reflectionless standing-wave operation in microring resonators
Authors: Al Qubaisi Kenaish , Gluhović Ðorđe , Onural Deniz , Popović Miloš A.
Published: April 2022

We demonstrate a scheme for microring resonators to operate as standing-wave resonators while eliminating reflections and maintaining traveling-wave-resonator-like through-port response, potentially enabling interdigitated p-n junction microring modulators to achieve higher performance than other junction geometries.
High-Speed Performance of 140 cm-long Flexible Multimode Polymer Waveguides Link Supporting 1 mm-radius Bend
Authors: Shi Ying , Ma Lin , Kaneta Motoya , Zhuang Yudi , He Zuyuan
Published: April 2022

We achieved 30 Gb/s error-free transmission using 140 cm-long flexible multimode polymer waveguides link with a measured bandwidth of 42 GHz·m. Bandwidth degradation is negligible under a bending radius of 1 mm with 3-turn twists.
DSP Enabled Next Generation Flexible PON for 50G and Beyond
Authors: Li Borui , Nesset Derek , Liu Dekun , Ye Zhicheng , Li Liangchuan
Published: April 2022

In fiber access, DSP is used for the first time in the ITU-T 50G-PON. Here, we review the benefits of DSP in enabling more flexible PON systems today with 50G-PON and into the future.
50Gb/s Real-Time Transmissions with Upstream Burst-Mode for 50G-PON using a Common SOA Pre-amplifier/Booster at the OLT
Authors: Simon Gaël , Saliou Fabienne , Potet Jérémy , Chanclou Philippe , Rosales Ricardo , Cano Ivan N. , Nesset Derek
Published: April 2022

We perform real-time 50Gb/s transmission targeting the HS-PON standard. An SOA shared at OLT enables 30dB optical budget and 50km upstream burst-mode transmission. The SOA’s XGM impact from upstream to downstream is studied.
Demonstration of an Algorithm for Quantum State Generation in Polarization-Encoding QKD Systems
Authors: Mantey S. T. , Ramos M. F. , Silva N. A. , Pinto A. N. , Muga N. J.
Published: April 2022

We experimentally demonstrate a polarization-state generation algorithm using off-the-shelf components. The method was implemented using a laboratory QKD testbed running for 21 hours with an average QBER of 1.8%.
LYNX: A GNPy-based web application for multi-vendor optical network planning
Authors: Raza Mohammad Saad , D’Amico Andrea , Usmani Fehmida , Alavi Sami Mansoor , Taimoor Muhammad Ali , Curri Vittorio , Ahmad Arsalan
Published: April 2022

We demonstrate LYNX, a web-based application for network planning. Built on top of GNPy, it automates the design of user-defined or already built-in network topology, dynamic resource provisioning, network recovery and optimization.
Demonstration of AI-Light: an Automation Framework to Optimize the Channel Powers Leveraging a Digital Twin
Authors: Ferrari Alessio , Garbhapu Venkata Virajit , Le Gac Dylan , de Jauregui Ruiz Ivan Fernandez , Charlet Gabriel , Pointurier Yvan
Published: April 2022

We demonstrate a network automation framework called AI-Light able to: create a digital twin based on the monitoring, perform an SNR-based optimization by leveraging the digital twin and, push the optimized configuration into the network.
Autonomous Pulse Control for Quantum Transducers with Deep Reinforcement Learning
Authors: Metcalf Mekena , Chen Huo , Butko Anastasiia , Kiran Mariam
Published: April 2022

Quantum transducers are the back-bone technology and enabler for the Quantum Internet. We created a Deep Reinforcment Learning control framework to overcome current, low conversion efficiencies, bringing quantum transducers towards practical use.
Demonstration of a Resilient and Quantum-Secured Time-Shared Optical Network with Multi-Level Programmability
Authors: Oliveira R. D. , Arabul E. , Wang R. , Kanellos G. T. , Nejabati R. , Simeonidou D.
Published: April 2022

We have successfully implemented a multilevel programmable network resilience and security for Time-Shared Optical Networks (TSON). A SDN controller enables flexible control of FPGA-based network coding and encryption/decryption cores for secured and resilient TSON.
Using Network Operations Platform and Orchestrator to Enhance Programmable OpenROADM Optical Networks
Authors: Ellsworth Nathan , Mirkhanzadeh Behzad , Zhang Tianliang , Razo Miguel , Fumagalli Andrea
Published: April 2022

Automatic provisioning of server-to-server data transfer over OpenROADM compliant equipment is achieved through the combined use of NOP/PROnet Orchestrator. User’s request for datarate is achieved while accounting for the equipment’s ability to create wave services.
372 Tb/s Unrepeatered 213 km Transmission Over a 125 µm Cladding Diameter, 4-Core MCF
Authors: Luis Ruben S. , Puttnam Benjamin J. , Rademacher Georg , Awaji Yoshinari , Furukawa Hideaki
Published: April 2022

We demonstrate a 372.8 Tb/s unrepeatered 213.3 km link using a 4-core multi-core fiber with standard cladding diameter and bidirectional Raman amplification. We transmit 424×24.5 GBaud PM-64QAM signals in the C+L bands for a capacity-distance product of 79.5 Pb/s·km.
3-mode Real-time MDM Transmission Using Single-mode OTN Transceivers over 300 km Weakly-coupled FMF
Authors: Zuo Mingqing , Ge Dawei , Gao Yuyang , Cui Jian , Huang Shuailuo , Zhou Rui , Guo Qiang , Zhang Yin , Zhang Ding , Xiao Xinhua , Shen Lei , Wang Dong , Li Yunbo , Han Liuyan , Zhang Lei , Lan Xiaobo , Zhang Dechao , Li Han , He Yongqi , Chen Zhangyuan , Li Juhao
Published: April 2022

Utilizing non-degenerate LP01/LP02/LP03 modes in a weakly-coupled 10-LP-mode multiple-ring-core FMF and corresponding mode multiplexers/demultiplexers consisting of cascaded mode-selective fiber couplers, we experimentally demonstrate a real-time 300-km MDM transmission with commercial single-mode 200G OTN transceivers.
1.5-µm Indium Phosphide-based Quantum Dot Lasers and Optical Amplifiers
Authors: Bauer Sven , Sichkovskyi Vitalii , Eyal Ori , Septon Tali , Becker Annette , Khanonkin Igor , Eisenstein Gadi , Reithmaier Johann Peter
Published: April 2022

An overview will be given on the progress of quantum dot laser materials addressing the telecom C band and their high potential for the application in optical communication systems, where temperature stability of the device performance as well as a narrow linewidth emission plays an important role. Device results of quantum dot lasers and optical amplifiers will be shown, and the physical background discussed.
Over 100 mW Uncooled Operation of SOA-integrated 1.3-µm Highly Reliable CW-DFB Laser
Authors: Yokokawa Shoko , Nakamura Atsushi , Hamada Shigetaka , Nakajima Ryosuke , Okamoto Kaoru , Arasawa Masatoshi , Nakahara Kouji , Tanaka Shigehisa
Published: April 2022

We demonstrate the first SOA-integrated CW-DFB laser at 1.3 µm with kink-free and stable single-mode operation over 100 mW at up to 80 ºC. We also achieved reliable operation over 700 hours at 80 ºC.
III-V Micro/Nano-lasers and photodetectors in the Telecom Band Grown on SOI
Authors: Lau Kei May , Xue Ying , Han Yu , Yan Zhao
Published: April 2022

We present our recent progress on the III-V micro/nano-lasers and photodetectors (PD) grown on (001) silicon-on-insulators (SOI) for integrated silicon photonics (Si-photonics) using vertical and lateral selective epitaxy.
Reduced-Coated Fibers and Micro-Duct Cables
Authors: Sillard P. , Amezcua-Correa A. , Mentzler C. , Ferri G.
Published: April 2022

We investigate the cable miniaturizations and densities enabled by 180µm-coated fibers with standard 125µm cladding. We then explore the possibility to reduce the coating diameter down to 165µm while keeping a standard 125µm cladding.
Side-view Rotational Alignment Method for Trench-assisted 4-core Fibers
Authors: Ohzeki Masaki , Sasaki Yusuke , Takenaga Katsuhiro , Ichii Kentaro , Aikawa Kazuhiko
Published: April 2022

A trench-assisted 4-core fiber has been successfully aligned in fusion splicing by determining an optimal focus position of a fusion splicer and matching the two fibers at the marker using a side-view rotational alignment method.
No-polish Air-gap Single-mode Low-loss Multi-fiber Anti-reflection Coated Connector
Authors: Wojewoda K. K. , Radice I. A. , Kearney M. O. D. , Thapa U. , Murgatroyd I. J.
Published: April 2022

We developed a multi-fiber air-gap optical connector which does not require polishing or physical contact between fibers. The developed single-mode connector has an average IL of 0.36dB and RL of 59.3dB with anti-reflective coating.
Stripping-Free Direct Fiber Insertion Connectors Using Thin-Coated Optical Fibers
Authors: Liu Jie , McClure Randy , Wu Qi , Niu Weijun , Drake Matthew R. , McCarthy Joseph E. , Stone Jeffery S. , Gu Yunfeng , Li Ming-Jun
Published: April 2022

Single-mode fiber connectors are demonstrated with 125 µm diameter thin-coated fibers directly inserted into connector ferrules. Low insertion loss of less than 0.3 dB is achieved due to the high concentricity of the coating.
Experimental Demonstration of a Metro Area Network with Terabit-capable Sliceable Bitrate Variable Transceiver using Direct Modulated VCSELs and Coherent Detection
Authors: Fabrega J. M. , Vílchez F. J. , Moreolo M. Svaluto , Martínez R. , Quispe A. , Nadal L. , Casellas R. , Vilalta R. , Muñoz R. , Neumeyr C. , Lee S. Y. , Shin J. U. , Jung H. D. , Mariani G. , Heuvelmans R. , Gatto A. , Parolari P. , Boffi P. , Tessema N. M. , Calabretta N. , Larrabeiti D. , Fernández-Palacios J. P.
Published: April 2022

We experimentally demonstrate a disaggregated metro area network that includes new photonic devices, node architectures, and sliceable bandwidth/bitrate variable transceiver, transmitting up to 8×11=88 spatial/spectral channels for a total capacity of 1.676Tb/s.
GNPy Experimental Validation for Nyquist Subcarriers Flexible Transmission up to 800 G
Authors: D’Amico Andrea , Le Guyader Bertrand , Frank Florian , Le Rouzic Esther , Pincemin Erwan , Napoli Antonio , Sun Han , Spinnler Bernhard , Brochier Nicolas , Curri Vittorio
Published: April 2022

We test the performance of Nyquist subcarriers flexible transponders up to 800 Gbit/s over a 20×80-km optical link operated at full WDM spectral load, obtaining excellent accuracy in GSNR and optimal power predictions using GNPy.
Reconfigurable PIC Transmitter for Short Reach Applications
Authors: Kaszubowska-Anandarajah A. , Sivapalan K. , Martin E. , Gutierrez-Pascual D. , Smyth F. , Braddell J. , Lakshmijayasimha P. , Anandarajah P. M
Published: April 2022

A novel reconfigurable photonic integrated transmitter, enabling dynamic resource allocation and sharing, is proposed. Architecture, functionality and a deployment scenario are discussed. Preliminary work on machine learning methods for controlling the device are also presented.
Analysis of Potential Four-wave Mixing Risk in 5G Front-haul System
Authors: Ge Dawei , Wang Dong , Zhang Dechao , Sun Jiang , Li Yunbo , Liu Sheng , Han Liuyan , Li Han
Published: April 2022

FWM is proposed as a new major impairment for 5G front-haul network for the first time. Corresponding theoretical analysis and experiment in FWM penalty have been done for two main commercial plans for comparison.
Silicon Photonics for 800G and Beyond [invited]
Authors: Dong Po , Chen Jing , Melikyan Argishti , Fan Tianren , Fryett Taylor , Li Changyi , Chen Jiashu , Koeppen Chris
Published: April 2022

Future optical transceivers will rely on silicon photonics to address the increasing need for high capacity density and energy efficiency. We review its applications in 800G and beyond and highlight the challenges ahead.
288 Gb/s 850 nm VCSEL-based Interconnect over 100 m MMF based on Feature-enhanced Recurrent Neural Network
Authors: Gao Yunfeng , Yang Chuanchuan , Wang Jiaxing , Qin Xin , Guo Haipeng , Zhang Xiaoyu , Shen Chih-Chiang , Li Hongbin , Chen Zhangyuan , Chang-Hasnain Constance J.
Published: April 2022

We experimentally demonstrate an ultra-high speed record of single-lane 288 Gb/s PAM-8 signal transmission over 100 m MMF attributed to the proposed design-optimized 850 nm VCSEL and feature-enhanced RNN equalization.
Real-time 100 Gb/s IM/DD DMT with Chirp Managed Laser Supporting 400 Gb/ CWDM-4 over 20 km
Authors: Le Son Thai , Drenski Tomislav , Hills Andrew , King Malcolm , Matsui Yasuhiro , Verma Ashish , Kwakernaak Martin , Sudo Tsurugi
Published: April 2022

We demonstrate the first real-time 100 Gb/s IM/DD DMT transmission with a chirp managed laser over - 65.6 ps/nm to + 48.6 ps/nm of dispersion which is sufficient to support 400 Gb/s CWDM-4 transmission over 20 km.
400-pixel high-speed photodetector for high optical alignment robustness FSO receiver
Authors: Umezawa Toshimasa , Matsumoto Atsushi , Akahane Kouichi , Kanno Atsushi , Yamamoto Naokatsu
Published: April 2022

We fabricated a 400-pixel high-speed photodetector with a 0.85-mm large square size, while maintaining high frequency performance. The high frequency characteristics and optical alignment robustness in a 20 m long distance FSO communication was demonstrated.
Precise Longitudinal Power Monitoring over 2,080 km Enabled by Step Size Selection of Split Step Fourier Method
Authors: Sasai Takeo , Nakamura Masanori , Yamazaki Etsushi , Kisaka Yoshiaki
Published: April 2022

We propose a step-size optimization scheme of the split-step Fourier method for longitudinal power profile monitoring. We observe only a 1.06-dB root-mean-square error from the theoretical power profile for a 2,080-km transmission link.
Optical Binary Switched Delay Line based on Low Loss Multimode Waveguide
Authors: Idres Samer , Hashemi Hossein
Published: April 2022

We demonstrate low loss, 7-bit, switched delay line, with 6.4 ns measured delay span. The geometrically-optimized delay lines achieve 3.3 dB/m (0.25 dB/ns) measured loss. The design is fabricated in a commercial silicon photonics process.
High-performance and Ultra-compact Endless Automatic Polarization Controller based on Thin-film Lithium Niobate
Authors: Lin Zhongjin , Lin Yanmei , Li Hao , Xu Mengyue , He Mingbo , Ke Wei , Yao X.Steve , Yu Siyuan , Cai Xinlun
Published: April 2022

Based on thin-film lithium niobate platform, we experimentally demonstrate an endless automatic polarization controller which only requires a driving voltage range of 10 V, and achieves a polarization tracking speed of 10 Krad/s.
Automated Tuning for Silicon Photonic Filters
Authors: Entesari Kamran , Palermo Samuel , Madsen Christi , Choo Gihoon , Rady Ramy , Cai Shengchang , Wang Binhao
Published: April 2022

An automatic monitor-based filter tuning technique for APF-based silicon photonic filters is presented. The proposed tuning approach calibrates the initial distorted filter response due to process variation by adjusting the locations of each pole and zero to reconfigure to different bandwidths and center wavelengths.
Photonic Lanterns as Wavefront Sensors
Authors: Leon-Saval Sergio G.
Published: April 2022

Photonic lanterns are low-loss mode convertors easily integrated with optical fiber technologies. We present the proof of concept of a focal plane low-order wavefront sensor based on a 19-core multicore photonic lantern and deep learning.
Fully Integrated Solid-State LiDAR Transmitter on a Multi-Layer Silicon-Nitride-on-Silicon Photonic Platform
Authors: Xu Weihan , Guo Yuyao , Li Xinhang , Liu Chuxin , Lu Liangjun , Chen Jianping , Zhou Linjie
Published: April 2022

We demonstrated a LiDAR transmitter incorporating both a hybrid-integrated tunable external cavity laser and a high-resolution 2-D optical phased array beam-steerer on a tri-layer silicon-nitride-on-silicon photonic platform.
Accelerating Distributed Machine Learning in Disaggregated Architectures with Flexible Optically Interconnected Computing Resources
Authors: Yan Shijia , Zhu Ziyi , Glick Madeleine S. , Wu Zhenguo , Bergman Keren
Published: April 2022

We introduce an optically interconnected disaggregated architecture for GPU resources and demonstrate a 3× increase in GPU utilization and up to 73.2% acceleration of application runtime for distributed machine learning workloads.
When Task Scheduling Meets Flexible-bandwidth Optical Interconnects: A Cross-layer Resource Orchestration Design
Authors: Chen Xiaoliang , Liu Che-Yu , Proietti Roberto , Chen Shaoyi , Li Zhaohui , Ben Yoo S.J.
Published: April 2022

We propose a cross-layer resource orchestration design for task scheduling in flexible-bandwidth optical data center networks. Results show the proposed design can achieve ~ 8.2×, ~ 1.9× and ~ 4.8× reductions of request blocking probability, end-to-end delay and packet loss rate, compared with the baseline.
Data Plane Technology-agnostic Control and Orchestration Architecture for Optical Disaggregated Data Centers
Authors: Agraz Fernando , Pagès Albert , Spadaro Salvatore
Published: April 2022

We propose a novel SDN control and orchestration architecture to provide composed IaaS over optical disaggregated data centers. We experimentally validate intent-based mechanisms that make the architecture independent from the underlying physical infrastructure technology.
A Fast Amplifier Gain and Tilt Configuration Algorithm for Dynamic C+L-band Networks
Authors: Song Yuchen , Fan Qirui , Wang Danshi , Lu Chao , Lau Alan Pak Tao
Published: April 2022

We propose a fast amplifier gain/tilt configuration algorithm for C+L-band systems in presence of Stimulated Raman Scattering (SRS). The running time is less than 5 seconds which can be used for real-time dynamic network control.
Probabilistic vs. Geometric Constellation Shaping in Commercial Applications
Authors: Vassilieva Olga , Kim Inwoong , Irie Hiroyuki , Koganei Yohei , Nakashima Hisao , Akiyama Yuichi , Hoshida Takeshi , Palacharla Paparao
Published: April 2022

We discuss performance and implementation aspects of geometric and probabilistic constellation shaping, which can be optimized for different applications. We show that symbol rate optimization with probabilistic shaping can further improve reach/capacity.
An Optimized Full-spectrum Modulated NFDM System by Combining Geometric Shaping and Linear Minimum Mean Square Error Estimator
Authors: Wei Jiacheng , Xi Lixia , Zhang Xulun , Deng Jiayun , Zhang Ruofan , Du Shucheng , Zhang Wenbo , Zhang Xiaoguang
Published: April 2022

We elaborately design a full-spectrum modulated NFDM system with b-scheme. A 1120km transmission with BER < 3.8 × 10−3 at 103.75 Gbps is achieved through geometric shaping (GS) and linear minimum mean square error (LMMSE) estimator.
Spectrally Efficient Non-Orthogonal Multi-band CAP UDWDM Fiber-MMW Integration for 6G RAN Employing NN-Based Direct Waveform to Symbol Conversion
Authors: Chen Jiang , Dong Boyu , Jia Junlian , Shi Jianyang , Li Tao , Shen Chen , Zhang Junwen , Chi Nan
Published: April 2022

We propose a novel neural-network-based direct waveform-to-symbol conversion method in non-orthogonal multi-band CAP based UDWDM fiber-MMW integration system for 6G radio-access-network. Spectrally efficient fiber-MMW transmission is achieved at totally 384-Gbps capacity with 24 non-orthogonal sub-bands.
Hybrid CAP / mm-wave OFDM Vector Modulation for Photonic Frequency Conversion in a Single-Sideband Feeder
Authors: Martí Aina Val , Vokić Nemanja , Zemen Thomas , Schrenk Bernhard
Published: April 2022

We demonstrate the simultaneous radio-over-fiber feed of 16-QAM 10-Gb/s CAP and 1-GHz OFDM radio at 28-GHz for HetNets. Independent sideband modulation yields photonic up-conversion to the mm-wave band and a dispersion-tolerant feed over 70km.
BTO-enhanced silicon photonics – a scalable PIC platform with ultra-efficient electro-optical modulation
Authors: Czornomaz Lukas , Abel Stefan
Published: April 2022

We demonstrate an advanced BTO-enhanced silicon photonic platform for high-volume applications in communication, optical computing, and sensing. Our platform exploits an ultra-strong Pockels effect, enabling large-scale, high-speed electro-optic photonic circuits with low power consumption and loss.
CMOS-level-voltage Substrate-removed Thin-film Lithium Niobate Modulator
Authors: Xu Mengyue , Gao Shengqian , Tan Heyun , Cai Xinlun
Published: April 2022

We demonstrate an O-band substrate-removed thin-film lithium niobate modulator with a low microwave loss of 0.24 dB cm−1 GHz−1/2. The device features a 1-V half-wave voltage and 1.4 dB EO response roll-off at 50 GHz.
A Highly Compact Thin-film Lithium Niobate Modulator with Low Half-wave Voltage
Authors: Liu Xuecheng , Liu Hao , Xiong Bing , Sun Changzheng , Hao Zhibiao , Wang Lai , Wang Jian , Han Yanjun , Li Hongtao , Luo Yi
Published: April 2022

Meandered thin-film lithium niobate modulators with capacitively loaded travelling-wave electrodes are demonstrated. Interdigitated T-rails are employed for reversed electric field, resulting in 1.08 V half-wave voltage and 3-dB bandwidth beyond 50 GHz for 8-mm-long devices.
Non-intrusive and Highly Sensitive Gas Flow Monitoring based on Distributed Acoustic Sensing
Authors: Yan Baoqiang , Li Hao , Li Ming , Fan Cunzheng , Zhang Keqing , Qian Hao , Xiao Fei , Yan Zhijun , Sun Qizhen
Published: April 2022

We propose and demonstrate a non-intrusive pipeline flow monitoring system based on the DAS. To the best of our knowledge, this is the first time a DAS system has been used for gas flow monitoring.
Traffic Tolerance of Nanosecond Scheduling on Optical Circuit Switched Data Center Network
Authors: Benjamin Joshua L. , Ottino Alessandro , Parsonson Christopher W. F. , Zervas Georgios
Published: April 2022

PULSE’s ns-speed NP-hard network scheduler delivers skew-tolerant performance at 90% input loads. It achieves >90% throughput, 1.5-1.9 ms mean and 16-24 ms tail latency (99%) for up to 6:1 hot:cold skewed traffic in OCS DCN.
Realization of EML Submodule for 100-Gbaud Operation Using LC Resonance with Optimization of Load Resistance
Authors: Yun Seok-Jun , Han Young-Tak , Lee Dong-Hoon , Kim Seok-Tae , Kwak Min-Jun , Shin Jang-Uk , Park Sang-Ho , Lee Seo-Young , Baek Yongsoon
Published: April 2022

By using LC resonance effect with optimization of load resistance, the 3-dB bandwidth of a lumped-EML submodule can be enhanced to > 55 GHz although an EAM length is 150 um, making it enable 100-Gbaud operations.
Non-Linear Effects of WDM Transmission versus Optical Routing Impairments: Does One Prevail at Network Level?
Authors: Zami Thierry , Lonardi Matteo , Rossi Nicola , Lavigne Bruno
Published: April 2022

The influence on network performance of WDM transmission non-linear effects is compared to the impact of optical filtering and crosstalk induced by the wavelength routing cross-connects, for 3 network topologies and 2 distinct transponder technologies.
100 Gbit/s THz Data Transmission and Beyond using Multicore Fiber Combined with UTC Photodiode Array
Authors: Sawadogo Bewindin A. , Bandyopadhyay Aritrio , Zegaoui Malek , Zaknoune Mohammed , Szriftgiser Pascal , Baudelle Karen , Bouet Monika , Bouwmans Géraud , Gaillot Davy P. , Andresen Esben , Ducournau Guillaume , Bigot Laurent
Published: April 2022

Photonics-driven transmitters are leading the race towards high data-rates at THz frequencies. Here, spatial-multiplexing based on multicore fiber and photodiodes array is considered to alleviate the limited output power. Sub-systems have been developed and validated.
Seven-Aperture Direct-Detection Receiver for Free-Space Optical Communication Systems
Authors: Thi Mat Nguyen , Mai Vuong , Kim Hoon
Published: April 2022

We experimentally demonstrate a free-space optical communication system utilizing seven-aperture direct-detection receiver. We estimate the instantaneous SNR from the AC-coupled photo-currents and implement the maximal ratio combining by optimizing the averaging time of the photo-current.
Ultra-Low-Complexity MAP Demapper for Bandwidth-Limited Pluggable Coherent Optics beyond 800G
Authors: Che Di
Published: April 2022

We reveal the benefit of adding a MAP demapper in bandwidth-limited coherent systems, and study a simplified MAP algorithm achieving a comparable performance with the conventional MAP for 100-GBd 16/64-QAM with more than 8-fold complexity reduction.
Domain Adaptation: the Key Enabler of Neural Network Equalizers in Coherent Optical Systems
Authors: Freire Pedro J. , Spinnler Bernhard , Abode Daniel , Prilepsky Jaroslaw E. , Ali Abdallah , Costa Nelson , Schairer Wolfgang , Napoli Antonio , Ellis Andrew D. , Turitsyn Sergei K.
Published: April 2022

We introduce the domain adaptation and randomization approach for calibrating neural network-based equalizers for real transmissions, using synthetic data. The approach renders up to 99% training process reduction, which we demonstrate in three experimental setups.
Biomimicry in Microwave Photonic and Fiber Optic Sensors Embedded Soft Robotics
Authors: Fok Mable , Liu Qidi , Yang Mei
Published: April 2022

Biomimicry offers natural and effective solutions to solve critical challenges in wide range of emerging technologies. This paper introduces several bio-inspired dynamic microwave photonic technologies as well as biomimicry in fiber-optic sensors enhanced soft robotics.
Segmented Silicon Photonic Modulator with a 67-GHz Bandwidth for High-Speed Signaling
Authors: Mohammadi Abdolkhalegh , Zheng Zibo , Lin Jiachuan , Rad Mohammad M. , Zhang Xiaoguang , Rusch Leslie A. , Shi Wei
Published: April 2022

We experimentally demonstrate an all-silicon segmented modulator with an electro-optic bandwidth beyond 67 GHz and a V
π
of 5V. Transmission of 120-Gbaud 8-ASK (336.4 Gb/s net) is achieved.
Auxiliary Graph based QKD Key Provisioning for End-to-End Security Service in Optical Networks
Authors: Zhu Qingcheng , Yu Xiaosong , Zhao Yongli , Nag Avishek , Wang Hua , Chen Liquan , Zhang Jie
Published: April 2022

We propose a quantum-key-distribution (QKD) key provisioning scheme by applying auxiliary graph for end-to-end security service in optical networks. Simulation demonstrates the good performance in terms of security level and key provisioning latency.
Microservice-Based Unsupervised Anomaly Detection Loop for Optical Networks
Authors: Natalino Carlos , Manso Carlos , Gifre Lluis , Muñoz Raul , Vilalta Ricard , Furdek Marija , Monti Paolo
Published: April 2022

Unsupervised learning (UL) is a technique to detect previously unseen anomalies without needing labeled datasets. We propose the integration of a scalable UL-based inference component in the monitoring loop of an SDN-controlled optical network.
Eigenvalue-domain Neural Network Receiver for 4096-ary Eigenvalue-modulated Signal
Authors: Takeuchi Hiroyuki , Mishina Ken , Terashi Yuhei , Hisano Daisuke , Yoshida Yuki , Maruta Akihiro
Published: April 2022

Demodulation scheme based on multilabel eigenvalue-domain neural network for a 4096-ary eigenvalue-modulated signal is demonstrated experimentally. Successful de-modulation with a 2.5 dB power margin compared with multiclass single-label classification is achieved at 10.7 Gb/s.
Shaped Four-Dimensional Modulation Formats for Optical Fiber Communication Systems
Authors: Chen Bin , Liga Gabriele , Lei Yi , Ling Wei , Huan Zhengyan , Xue Xuwei , Alvarado Alex
Published: April 2022

We review the design of multidimensional modulations by maximizing generalized mutual information and compare the maximum transmission reach of recently introduced 4D formats. A model-based optimization for nonlinear-tolerant 4D modulations is also discussed.
LIDAR-Assisted Channel Modelling for LiFi
Authors: Mana Sreelal Maravanchery , Gabra Kerolos Gabra Kamel , Kouhini Sepideh Mohammadi , Hinrichs Malte , Schulz Dominic , Freund Ronald , Jungnickel Volker
Published: April 2022

We present fast and accurate modelling of LiFi channels using data from LIDAR scans. Line-of-sight, first and residual reflections are modelled in the frequency-domain and using the integrating-sphere method. Model and measurement show good agreement.
Net 1 Tbps/λ Transmission Over 80 km of SSMF Using a Single Segment SiP IQM With All-Electronic Equalization
Authors: Berikaa Essam , Alam Md Samiul , Samani Alireza , Lessard Stéphane , Plant David V.
Published: April 2022

We achieve net 1 Tbps (line-rate 1.26 Tbps) transmission using a single-segment travelling-wave SiP IQ modulator at 105 Gbaud DP-64QAM below the 25% SD-FEC-threshold over 80 km of SSMF with all-electronic equalization and non-linear pre-distortion.
End-to-End Real-Time Service Provisioning over a SDN-controllable 60 GHz analog FiWi X-haul for 5G Hot-Spot Networks
Authors: Vagionas C. , Maximidis R. , Stratakos I. , Margaris A. , Mesodiakaki A. , Gatzianas M. , Kanta K. , Toumasis P. , Giannoulis G. , Apostolopoulos D. , Papatheofanous E. A. , Lentaris G. , Reisis D. , Soudris D. , Tsagkaris K. , Argyris N. , Syrivelis D. , Bakopoulos P. , Oldenbeuving R. M. , Roeloffzen C. G. H. , van Dijk P. W. L. , Dimogiannis I. , Kontogiannis A. , Avramopoulos H. , Miliou A. , Pleros N. , Kalfas G.
Published: April 2022

The first successful demonstration of real-time Ethernet trial services over an analog 2λ-WDM Fiber-Wireless mmWave X-haul is experimentally reported, controlled through Open Daylight SDN controller for flexibly allocating capacity via a low-loss Si3N4 ROADM.
Integrated optical transmitter with micro-transfer-printed widely tunable III-V-on-Si laser
Authors: Zhang Jing , Soltanian Emadreza , Haq Bahawal , Ertl Stefan , Rimböck Johanna , Matuskova Bozena , Pelucchi Emanuele , Gocalinska Agnieszka , Van Campenhout Joris , Lepage Guy , Verheyen Peter , Bogaerts Wim , Roelkens Gunther
Published: April 2022

We demonstrate a C-band optical transmitter with an integrated widely-tunable III-V-on-silicon laser on the imec iSiPP50G platform using micro-transfer printing. Back-to-back operation at 40 Gbit/s non-return-to-zero On-Off keying over the C-band is presented.
III-V-on-Silicon-Nitride Mode-Locked Lasers
Authors: Kuyken Bart , Cuyvers Stijn , Hermans Artur , Poelman Stijn , de Beeck Camiel Op , Haq Bahawal , Roelkens Gunther , Van Gasse Kasper , Kjellman Jon Ø. , Caër Charles , Roelkens Günther , Soussan Philippe , Rottenberg Xavier
Published: April 2022

We demonstrate heterogeneously integrated passively mode-locked lasers by microtransfer printing III-V semiconductor optical amplifiers on a silicon nitride photonic chip. Hereby, dense and low-noise optical laser comb sources can be made.
Dual Laser Indium Phosphide Photonic Integrated Circuits for Remote Active Carbon Dioxide Sensing
Authors: Sang Fengqiao , Rosborough Victoria , Fridlander Joseph , Gambini Fabrizio , Brunelli Simone Šuran , Chen Jeffrey R. , Kawa Stephan R. , Numata Kenji , Stephen Mark , Coldren Larry , Klamkin Jonathan
Published: April 2022

Two generations of indium phosphide photonic integrated circuits were fabricated, characterized, and their performance compared. Successful sampling of carbon dioxide was performed in a laboratory setting under continuous wave sampling.
16 Wavelengths Comb Source Using Large-Scale Hybrid Photonic Integration
Authors: Grillanda Stefano , Bolle Cristian , Cappuzzo Mark , Papazian Rick , Farah Bob , Fontaine Nicolas , Mazur Mikael , Kopf Rose , Earnshaw Mark
Published: April 2022

We demonstrate a 16 wavelengths comb source using hybrid integration of 16 gain chips, 32 balls lenses and an arrayed waveguide grating, with total output power >20 mW, SMSR > 56 dB, and kHz-scale linewidths.
Building a Global Content Provider Network at Scale
Authors: Nikolaidis Alexander
Published: April 2022

This tutorial covers scaling the backbone network of a global content provider. Key constraints on network growth are classified and scaling strategies discussed. Optimizations and architecture changes for higher scale are presented.
New Use Cases for PONs Beyond Residential Services
Authors: Bonk R. , Pfeiffer Th.
Published: April 2022

New use cases for PON are highlighted in critical network infrastructures and industrial factories. Introduction of more flexibility and increased determinism including bounded latency, low jitter, highly secure and available connectivity over PON is addressed.