bluuebunny/crossref_metadata_2025 huggingface dataset:
Physical-Layer Secure Optical Communication Based on Private Chaotic Phase Scrambling
Authors: Zhao Anke , Jiang Ning , Liu Shiqin , Zhang Yiqun , Qiu Kun
Published: October 2021

We propose a novel high-speed physical-layer secure optical communication scheme based on private synchronous chaotic phase scrambling, and experimentally demonstrate an exemplary 25-Gbps secure QPSK transmission over 50-km single-mode fiber.
Improving -coefficient detection via signal Continuous Spectrum in Soliton Transmissions
Authors: Zhou Gai , Lau Alan Pak Tao
Published: October 2021

We showed strong correlations between noise in -coefficient () of discrete eigenvalues and -coefficient () of signal continuous spectrum, which can be leveraged to further reduce noise in () for soliton transmissions with () modulation.
Photonic-assisted Wideband RF Beamformer on InP Membrane on Silicon Platform
Authors: Trinidad Ailee , van Zantvoort Johan , van Engelen Jorn , Jiao Yuqing , Tangdiongga Eduward , Koonen Ton
Published: October 2021

We report the experimental performance of a compact beamformer fabricated on the novel InP membrane on silicon platform exhibiting large steering angle (±90˚ at 26 GHz), high throughput (12 Gbps), and fast reconfiguration time (~250 ns). © 2021 The Author(s)
Energy and Data Efficient Photonic Time Stretch Imaging
Authors: Wang Chao
Published: October 2021

Ultrafast single-pixel optical imaging based on photonic time stretch has become an indispensable tool for high-throughput operations. This paper reviews recent advances in improving the energy and data efficiency of the system using optical approaches.
3.129-Gbit/s OFDM Visible Light Communication Using Semipolar Green μ-Light Emitting Diode (μ-LED) Array
Authors: Chang Yun-Han , Chang Guan-Hao , Liou Fang-Jyun , Peng Ching-Wei , Gunawan Wahyu Hendra , Chow Chi-Wai , Kuo Hao-Chung , Liu Yang , Yeh Chien-Hung
Published: October 2021

We propose and demonstrate 3.129 Gbit/s orthogonal-frequency-division-multiplexing (OFDM) visible-light-communication (VLC) system using 550 nm wavelength green semipolar (20-21) InGaN/GaN μ-LED-array. The produced μ-LED-array has a high 3-dB bandwidth of 1.06 GHz driven at 90 mA.
Doubling the Spectral Efficiency with EVM as the Objective Function for Training Neural Networks in Non-Orthogonal Visible Light Communications Systems
Authors: Stainton Scott , Haigh Paul Anthony
Published: October 2021

We experimentally demonstrate, for the first time, that neural network detector performance can be enhanced by using EVM as the objective loss function. This method allows bandwidth compression up to 50% in non-orthogonal VLC systems.
VLC Using a Red SMD LED as 2.48 Gb/s Multi-Carrier Receiver and Wide Field-of-View 25 Mb/s OOK Transmitter
Authors: Milovančev Dinka , Vokić Nemanja , Schrenk Bernhard
Published: October 2021

A single-color LED is used as transceiver, achieving 2.48 Gb/s downlink reception with laser pencil beam over 2 m, and 25 Mbaud uplink transmission using APD- and SPAD-based receivers over 1 and 2 m, respectively.
Digital Orthogonal Filtering-Enabled Synchronous Transmissions of I/Q Waveforms and Control Words for Bandwidth-Efficient and Low-Complexity Mobile Fronthaul
Authors: Deng M. L. , Mamadou T. , Xing Z. B. , Kang X. , Luo Z. R. , Shi J. W. , Wang L.
Published: October 2021

We experimentally demonstrate digital orthogonal filtering-enabled synchronous transmissions of 24 20MHz LTE signals and CWs, achieving an EVM of 3.1% and a SNR of 31.4dB for I/Q waveforms and CWs, respectively, over a 6km SSMF.
Novel Scalable and Reconfigurable Optical Fronthaul Network for Converged Radio Frequency and Data Services Using Silicon Photonic Switching
Authors: Xia Junfei , Li Tongyun , Cheng Qixiang , Yang Shuai , Bergman Keren , Penty Richard
Published: October 2021

We propose and demonstrate a converged optical fronthaul network for RF and data services with scalable silicon photonic switching. A 1.5dB power penalty at a 10-9 BER and over 40dB RF dynamic range are demonstrated.
Coherent optical communications using coherence-cloned Kerr soliton microcombs as carriers and local oscillators
Authors: Geng Yong , Han Xinjie , Deng Guangwei , Zhou Qiang , Qiu Kun , Zhou Heng
Published: October 2021

We demonstrate cloning of two Kerr soliton combs via using the techniques of pump laser conveying and two-point locking. The cloned Kerr combs are used as carriers and local oscillators for coherent optical transmission.
Self-Coherent Single-Sideband Signal Generation by Injection Locking of a 2-Section Laser Diode
Authors: Hui Rongqing , Al-Qadi Mustafa , Laperle Charles , Charlton Doug , O'Sullivan Maurice
Published: October 2021

We propose a low complexity transmitter of optical single-sideband modulation based on injection locking of a 2-section DFB laser to generate mutually-coherent tones. The scheme is experimentally demonstrated in 17-Gbd 16-QAM transmission with Kramers-Kronig reception.
Ultra-Compact Silicon Mode Converter Based on a Zigzag-type Metasurface Structure
Authors: Wang Hongwei , He Yu , Sun Lu , Zhang Yong , Su Yikai
Published: October 2021

An ultra-compact silicon waveguide mode converter is proposed and experimentally demonstrated using an all-dielectric metasurface structure with zigzag-type periodic perturbations.
Experimental Demonstration of Broadband Silicon 4-Mode (de)Multiplexer Designed by Wavefront-Matching Method
Authors: Sawada Yusuke , Fujisawa Takeshi , Sato Takanori , Saitoh Kunimasa
Published: October 2021

A broadband silicon-based 4-mode multiplexer designed using a wavefront-matching method is experimentally demonstrated. Measured results strongly correlate with simulated results, and very flat transmission spectra are observed for the proposed device.
Butt-Coupled III-V Photodetector Monolithically Integrated on SOI with data reception at 50 Gbps OOK
Authors: Tiwari Preksha , Wen Pengyan , Mauthe Svenja , Baumann Michael , Bitachon Bertold Ian , Schmid Heinz , Leuthold Juerg , Moselund Kirsten E.
Published: October 2021

We demonstrate the first in-plane waveguide butt-coupled high-speed III-V p-i-n photodetector monolithically integrated on standard SOI and demonstrate data reception at 50 GBd using OOK and a 3 dB cut-off frequency approaching 70 GHz.
Recess-type waveguide integrated germanium on silicon avalanche photodiode
Authors: Huang Mengyuan , Magruder Kelly , Malinge Yann , Fakhimi Parastou , Liao Hao-Hsiang , Kohen David , Lovell Gregory , Qian Wei , Lee Kiyoung , Brandt Carsten , Hakami Mahtab , Chen Yen-jung , Carabajal Erin , Guillermo Erle , Slavin Seth , Liu Ansheng
Published: October 2021

We demonstrate a recess-type Ge on Si WGAPD receiver with 106Gb/s PAM4 overload >0dBm and unstressed/stressed sensitivities of -18.9/18dBm, which provides about 19dB dynamic range for 100Gb/s per lane applications.
Advanced Nonlinear Digital Signal Processing for Short-Reach Applications
Authors: Li Xiang , Faruk Saifuddin , Savory Seb J.
Published: October 2021

In this paper, we discuss different nonlinear impairments in short-reach fibre transmission systems. Recent progress on the nonlinear digital signal processing techniques to mitigate such nonlinear impairments are summarized.
465 Gbps Single Side Band Direct Detection Transmission over 40 km of SSMF using a Single-ended Photodiode
Authors: Le Son Thai , Schuh Karsten
Published: October 2021

We propose a novel adaptive algorithm to mitigate simultaneously the O/E front-end response and the SSBI in SSB direct detection transmissions and demonstrate a net data rate of 465 Gb/s over 40 km of SSMF using a single-ended photodiode.
Novel Link Architecture Minimizing Thermal Energy Dissipation for Cryogenic Optical Interconnects
Authors: Estrella Steven B. , Dorch Thomas P. , Cooper Trevor M. , Renner Daniel S. , Schow Clint L.
Published: October 2021

A novel cryogenic optical interconnect architecture and first demonstration is presented, using external laser tracking and ring resonator modulators – that provide both modulation and wavelength multiplexing – for scalable cryogenic interconnects with minimized thermal energy dissipation.
Synchronization of Electro-Optically Modulated Kerr Soliton Comb to a Chip-Scale Mode-Locked Laser PIC via Harmonic Injection Locking
Authors: Shirpurkar C. , Bustos-Ramirez R. , Trask L. , Pericherla S. , Briles T. C. , Stone J. R. , Yu S.P. , Bhardwaj A. , Hoefler G. E. , Papp S. B. , Delfyett P. J.
Published: October 2021

We present an optical frequency division technique to transfer the timing stability of a stabilized Kerr Microresonator Soliton Frequency Comb (~305 GHz repetition rate) to a chip-scaled mode-locked laser (~10 GHz repetition rate).
All-Optical Bi-Directional Polarization Demultiplexing for Self-Homodyne Coherent Detection
Authors: Chen Yizhao , Wang Xuefeng , Zeng Yifan , Chen Junda , Li Weihao , Zhang Yao , Zhang Mingming , Zhao Can , Liu Deming , Tang Ming
Published: October 2021

An all-optical bi-directional polarization demultiplexing self-homodyne coherent system is proposed. In the 120-Gbit/s 16-QAM experimental demonstration, one adaptive polarization controller is applied to lock the polarization of uplink and downlink light at the same time.
Silicon Photonic Based Stacked Die Assembly for 4×200-Gbit/s Short-Reach Transmission
Authors: Zhao Ying , Chen Li , Aroca Ricardo , Zhu Ninghui , Ton Dinh , Inglis David , Doerr Christopher
Published: October 2021

We present a silicon photonic based stacked die assembly with driver and transimpedance amplifier for 4×200-Gbps applications. Various 200-Gbps pulse amplitude modulation formats over 2 and 10.5-km transmissions are demonstrated and compared.
Node-Oriented Traffic Prediction and Scheduling Based on Graph Convolutional Network in Metro Optical Networks
Authors: Bao Bowen , Yang Hui , Wan Yu , Yao Qiuyan , Yu Ao , Zhang Jie , Chatterjee Bijoy Chand , Oki Eiji
Published: October 2021

This paper proposes a node-oriented traffic prediction and scheduling in elastic metro optical networks by introducing the graph convolution network. Simulation results show the proposed scheme achieves efficient resource utilization with an accurate traffic prediction.
First Experimental Demonstration of Flexible Rate PON Beyond 100Gb/s with Probabilistic and Geometric Shaping
Authors: Kaneda Noriaki , Zhang Rui , Lefevre Yannick , Mahadevan Amitkumar , van Veen Doutje , Houtsma Vincent
Published: October 2021

The pairwise probabilistic combined with geometric shaping is applied to IMDD system. With shaped PAM signals, the flexible information rate beyond 100Gb/s is experimentally demonstrated for the first time in a practical PON link.
Spectrally Efficient Downstream 100 Gb/s PolMux Multi-CAP OSSB transmission and coherent reception Using 10G Electronics for Passive Optical Networks
Authors: Barrio M. , Izquierdo D. , Cerdá J. , Sarmiento S. , Altabás J.A. , Lázaro J.A. , Garcés I.
Published: October 2021

We present a 100Gb/s downstream PON link based on a PolMux, multi-CAP OSSB modulation signal received by a coherent receiver. 50km transmission is achieved using 10G electronic and photonic devices with a sensitivity of -20dBm.
Long-Term Reliable >200-Gb/s Directly Modulated Lasers with 800GbE-Compliant DSP
Authors: Che Di , Matsui Yasuhiro , Schatz Richard , Raybon Gregory , Bhatt Vipul , Kwakernaak Martin , Sudo Tsurugi
Published: October 2021

We demonstrate the long-term reliable operation of a 70-GHz-class DFB+R laser and its capability of 108-GBd PAM-4 signaling under +4.8-ps/nm dispersion using ultra-low complexity equalizations as well as faster-than-Nyquist PAM-2 signaling up to 280 GBd.
BOW: First Real-World Demonstration of a Bayesian Optimization System for Wavelength Reconfiguration
Authors: Zhong Zhizhen , Ghobadi Manya , Balandat Maximilian , Katti Sanjeevkumar , Kazerouni Abbas , Leach Jonathan , McKillop Mark , Zhang Ying
Published: October 2021

We demonstrate a practical Bayesian Optimization system for wavelength reconfiguration at Facebook backbone. Our system uses a firewall for safe deployment. It is open-source, compatible with any vendor, and achieves 4.76× faster wavelength reconfiguration.
Transparent Fiber–Radio–Fiber Bridge at 101 GHz using Optical Modulator and Direct Photonic Down-Conversion
Authors: Dat Pham Tien , Yamaguchi Yuya , Inagaki Keizo , Motoya Masayuki , Oikawa Satoshi , Ichikawa Junichiro , Kanno Atsushi , Yamamoto Naokatsu , Kawanishi Tetsuya
Published: October 2021

We demonstrate the first fiber–radio–fiber system in beyond 90 GHz using low loss optical modulator and direct photonic down-conversion. We successfully transmitted 32-/64-QAM OFDM and single-carrier signal with a record line rate of 71.4 Gb/s and net data rate of 53.7 Gb/s.
An Error-free 1 Tbps WDM Optical I/O Chiplet and Multi-wavelength Multi-port Laser
Authors: Wade M. , Anderson E. , Ardalan S. , Bae W. , Beheshtian B. , Buchbinder S. , Chang K. , Chao P. , Eachempatti H. , Frey J. , Jan E. , Katzin A. , Khilo A. , Kita D. , Krishnamoorthy U. , Li C. , Lu H. , Luna F. , Madden C. , Okada L. , Patel M. , Ramamurthy C. , Raval M. , Roucka R. , Robberson K. , Rust M. , Van Orden D. , Zeng R. , Zhang M. , Stojanovic V. , Sedgwick F. , Meade R. , Chan N. , Fini J. , Kim B. , Liu S. , Zhang C. , Jeong D. , Bhargava P. , Sysak M. , Sun C.
Published: October 2021

We demonstrate 128 Gbps/port (8-λ × 16 Gbps/λ) natively error-free transmission across eight optical ports using a 8-port, 8-λ/port WDM remote laser source and a pair of monolithically integrated CMOS optical I/O chiplets with 4.96-5.56 pJ/bit optical Tx+Rx chiplet energy efficiency.
Orbital Angular Momentum Mode Multiplexing and Data Transmission using a Silicon Photonic Integrated MUX
Authors: Liu Yaoxin , Rishøj Lars Søgaard , Ding Yunhong , Saudan Quentin , Oxenløwe Leif Katsuo , Morioka Toshio
Published: October 2021

We present a wavelength-independent orbital angular momentum mode-multiplexing chip-design and characterize a newly fabricated chip. We use the chip to simultaneously transmit three OAM modes, each carrying 10-Gbit/s OOK data, over an 800-m ring-core fiber.
Large-Scale Programmable Integrated Photonics
Authors: Raz Oded , Stabile Ripalta , Melskens Jimmy , Pagliano Francesco , Li Chenhui , Sproncken Christian C. M. , Gumí-Audenis Berta , Lazdanaité Emilija , Kessels Wilhelmus M. M. , Voets Ilja K. , Mohammed Mahir Asif
Published: October 2021

A comparison of scaling trends between CMOS and photonic integrated circuits (PIC) shows a need for programmable integrated photonics. Looking beyond current technologies we offer a perspective of nonvolatile and programmable photonic platforms as a route to large scale integration (LSI) photonics.
Photonic crystal modulator in a CMOS foundry platform
Authors: Qubaisi Kenaish Al , Onural Deniz , Gevorgyan Hayk , Popović Miloš A.
Published: October 2021

We report the first photonic crystal microcavity modulator realized in a foundry CMOS photonics platform. Bandwidth of 2.8 GHz and 5 Gbps data rate demonstrated utilizing an interdigitatedp-njunction in a WDM compatible structure.
Optical Modulator Based on Transition-Metal Dichalcogenides (TMDs)
Authors: Lipson Michal
Published: October 2021

We show that semiconductor monolayers exhibit strong electro-refractive properties at transparency wavelengths, with their |∆n/∆k| response outperforming that of graphene and conventional bulk materials such as silicon, rendering them ideal for large-scale photonic applications.
First Demonstration of 400ZR DWDM Transmission through Field Deployable Hollow-Core-Fibre Cable
Authors: Iqbal Asif , Wright Paul , Parkin Neil , Fake Mike , Alonso Marcelo , Sandoghchi Seyed Reza , Lord Andrew
Published: October 2021

We report characterisation of ISRS, Kerr-nonlinearity and the first demonstration of error-free DWDM transmission with 38×400G signals using commercial 400ZR QSFP-DD modules through a field deployable 10.25km hollow-core NANF cable with <1.2dB/km loss from 1525-1625nm.
Design Rules for Multi-Mode Anti-Resonant Hollow-Core Fibres
Authors: Shere William , Jasion Gregory T. , Fokoua Eric Numkam , Poletti Francesco
Published: October 2021

Hollow-core fibres typically guide a single low-loss, degenerate spatial mode. Here we present techniques to design HCFs guiding multiple modes with low loss that could be employed in short-haul datacoms or in power delivery.
End-to-end Autoencoder for Superchannel Transceivers with Hardware Impairment
Authors: Song Jinxiang , Häger Christian , Schröder Jochen , Amat Alexandre Graell i , Wymeersch Henk
Published: October 2021

We propose an end-to-end learning-based approach for superchannel systems impaired by non-ideal hardware component. Our system achieves up to 60% SER reduction and up to 50% guard band reduction compared with the considered baseline scheme.
Enabling S-C-L-Band Systems with Standard C-Band Modulator and Coherent Receiver using Nonlinear Predistortion
Authors: Emmerich Robert , Sena Matheus , Elschner Robert , Schmidt-Langhorst Carsten , Sackey Isaac , Schubert Colja , Freund Ronald
Published: October 2021

We experimentally demonstrate S-band reception of 64-GBd PDM-64/32-QAM using standard C-band components. Operation below SD-FEC is enabled by nonlinear transmitter pre-distortion based on coherent system identification supporting up to 150 nm bandwidth in the S-C-L-band.
CV-QKD System Using a Commercial Coherent Transceiver Module
Authors: Rückmann Max , Schaeffer Christian G.
Published: October 2021

We demonstrate a CV-QKD system that achieves key rates of 2.5 Mbit/s over 20 km using a cost-efficient transmitter based on a commercially available integrated coherent transceiver module.
Minimizing Spontaneous Raman Scattering Noise for Quantum Key Distribution in WDM Networks
Authors: Lin Rui , Chen Jiajia
Published: October 2021

We model the SRS impact on QKD when sharing C-band for quantum and classical communications in WDM networks and find the optimal wavelength allocation leading to >26% increase of achievable transmission distance for quantum signals.
Integrated Dual-DFB Laser Chip-based PAM-4 Photonic-Wireless Transmission in W-band
Authors: Jia Shi , Lo Mu-Chieh , Kong Deming , Guzman Robinson , Li Longsheng , Oxenløwe Leif K. , Carpintero Guillermo , Hu Hao
Published: October 2021

We experimentally demonstrate lens-free photonic-wireless transmission in the W-band using a monolithically integrated dual-DFB laser, which is injection-locked by a frequency comb to generate two 90-GHz-spacing phase-stabilized carriers and modulated with a 40-Gbit/s PAM-4 signal.
Photonic Integrated Circuits for Terahertz Communication: The Hybrid Integrated Microwave Photonic approach
Authors: Carpintero Guillermo , González Luis , Guzmán Robinson , Ali Muhsin , de Felipe David , Qian Tianwen , Keil Norbert , Grootjans Robert , Roeloffzen Chris
Published: October 2021

Optical heterodyne signal generation is the most flexible photonic microwave generation technique. Photonic integrated solutions have been shown monolithically on InP, and more recently on silicon. We present novel implementations using hybrid integration technology with silicon nitride (with high-Q resonators for extremely low linewidth) and polymer (with low permittivity material for highly efficient radiation).
High Baud Rate Modulation: Applications for Next-Generation Backbone Networks
Authors: Rahn Jeffrey , Hartling Elizabeth Rivera , Grubb Stephen , Armstrong Steve , Gadiya Vishal , Mitchell Matthew
Published: October 2021

95 GBaud transponders, equipped with probabilistic shaping and advanced FEC, improve backbone networks by reducing power and increasing spectral efficiency. We review network expectations and observations for this class of transponder.
Trans-Atlantic Real-Time Field Trial Using Super-Gaussian Constellation-Shaping to Enable 30Tb/s+ Capacity
Authors: Stephens M. F. C. , Mertz P. , Grubb S. G. , Shartle G. , Kumpera A. , O’Connor J. , Maher R. , Chitgarha M. R. , Doggart C. , Thomson S. , Edirisinghe S. , Afonso A. , Elam M. , Gelov K. , Boyanov B. , Dominic V. , Sanders S. , Kandappan P.
Published: October 2021

A record real-time capacity capability of 30.01Tb/s is demonstrated across a 6644km trans-Atlantic subsea link using super-Gaussian shaped PS-64QAM. We additionally report the first 700Gb/s payload transmission at 100.4GBaud across the same route.
Unrepeatered Transmission of Single-Carrier 800Gb/s over 404km with Commercial Transceiver and Enhanced ROPA System
Authors: Wu JianJun , Xu Jian , Hu Qianggao , Yu Jiekui , Liu Jiasheng , Luo Qing , Wang Wenzhong , Huang Liyan , Huang Chao , Long Han , Sun Shujuan , Duan Mingxiong , Xiang Ming , He Guoliang
Published: October 2021

This paper demonstrates a record unrepeatered transmission of single-carrier 800Gb/s over 404.39km (63.49dB) with a single fiber configuration, using sub-carrier Frequency-Division Multiplexing, optimized high-order Raman pump, forward and backward ROPAs, and ultra-low loss & large effective area fiber.
Operationalizing partially disaggregated optical networks: An open standards-driven multi-vendor demonstration
Authors: Le Rouzic E. , Lindgren A , Melin S. , Provencher D. , Subramanian R. , Joyce R. , Moore F. , Reeves D. , Rambaldi A. , Kaczmarek P. , Weeks K. , Neidlinger S. , Agrawal G. , Krishnamoha S. , Raszczyk B. , Uhlar T. , Casellas R. , de Dios O. Gonzalez , Lopez V.
Published: October 2021

We present and demonstrate service provisioning in partially disaggregated multi-vendor network automation scenarios with online physical impairment validation. This work uses and extends standard interfaces (OpenConfig and ONF Transport API) to retrieve network information interacting with TIP GNPy tool.
Demonstration of Extensible Disaggregated NE Management based on a SONiC-compliant Software-Agent Optical OpenConfig/gNMI Telemetry Go Implementation
Authors: Sadasivarao Abhinava , Yin Yawei , Balasubramanian Karthikeyan , Morgan Ryan , Gomes Paulo , Syed Sharfuddin , Paraschis Loukas
Published: October 2021

The proof-of-concept of a robust and extensible disaggregated network element management using a SONiC-compliant Go-based software agent implementation of OpenConfig gNMI optical streaming telemetry, is demonstrated and evaluated in a multivendor testbed.
Capacity Scaling Through Spatial Parallelism: From Subsea Cables to Short-reach Optical Links
Authors: Winzer Peter J.
Published: October 2021

Spatial parallelism is the only way to continue the exponential capacity scaling of optical networks. We discuss trade-offs and implications of spatial parallelism from ultra-long-haul subsea cables and terrestrial mesh networks to short-reach optical links.
RSE-based optical camera communication in underwater scenery with bubble degradation
Authors: Zhou Zihao , Wen Shangsheng , Guan Weipeng
Published: October 2021

Optical camera communication (OCC) is a promising technique. We demonstrated a rolling-shutter-based OCC in the underwater bubble scenario with 7.2 kbit/s data rate by employing the proposed de-bubble algorithm and binary fringe correction.
Demonstration of Machine-Intelligent Soft-Failure Localization Using SDN Telemetry
Authors: Pinto Rossano P. , Mayer Kayol S. , Soares Jonathan A. , Arantes Dalton S. , Mello Darli A. A. , Cavalcante Vinicius , Santos Leonardo L. , Moraes Filipe D. , Rothenberg Christian E.
Published: October 2021

We demonstrate a soft-failure localization framework using SDN-based network-wide telemetry. Soft failures are generated in a small-scale laboratory environment and collected in an SDN architecture. Failure localization is accomplished by ML algorithms.
Integrated Silicon Photonics Transceiver Module for 100Gbit/s 20km Transmission
Authors: Traverso Matt , Mazzini Marco , Lakshmikumar Kumar , Sunder Sanjay , Kurylak Alex , Appel Craig , Muzio Cristiana , Tummidi Ravi , Cervasio Alberto , Nadeau Mary , Li Weizhuo , Neiman Jarrett , Webster Mark
Published: October 2021

The architecture, packaging, and performance of a Silicon Photonics single transceiver chip PAM4 optical QSFP28 transceiver module for 100 Gigabit Ethernet compliant to 100GBASE- LR1 for 10km and extendable to over 20km SMF transmission is described.
Optimizations of thin glass diameter fibers
Authors: Mukasa Kazunori , Mihálffy Tamás , Várallyay Zoltán
Published: October 2021

Thin diameter fibers with 80μm cladding diameters were designed and fabricated. The limitation of total fiber diameters was investigated for step- and 2-types trench-index fibers taking ITU-T standard, micro-bending loss, and mechanical reliabilities, into account.
Cladding-pumped multicore amplifiers with ring doping
Authors: LaRochelle S. , Matte-Breton C. , Kelly C. , Essiambre R. J.
Published: October 2021

Spatially integrated amplifiers with cladding-pumping reduce subsystem port count. In these amplifiers, ring doping can help to overcome gain compression, a critical parameter in dynamic networks. We review recent progress in an 8-core amplifier design.
High Spatial Channel Count Multicore SDM Amplifiers
Authors: Jain S. , Sakamoto T. , Jung Y. , Barua P. , Davidson I. , Hayes J. , Shibahara K. , Mizuno T. , Miyamoto Y. , Nakajima K. , Richardson D. J.
Published: October 2021

We present recent advances in high spatial density multicore fiber amplifiers. The potential operational benefits are presented in comparison to standard erbium-doped fiber amplifiers and the potential cost/power saving benefits discussed.
Hermite-Gaussian mode multiplexer supporting 1035 modes
Authors: Fontaine Nicolas K. , Chen Haoshuo , Mazur Mikael , Dallachiesa Lauren , Kim K.W. , Ryf Roland , Neilson David , Carpenter Joel
Published: October 2021

We present a multi-plane light conversion based mode multiplexer supporting 1035 Hermite-Gaussian modes. It is characterized using spot scanning at the input and digital holography at the output.
Performance Comparison of Translucent C-band and Transparent C+L-band Network
Authors: Sadeghi Rasoul , Correia Bruno , Virgillito Emanuele , Napoli Antonio , Costa Nelson , Pedro João , Curri Vittorio
Published: October 2021

We compare transparent and translucent network design in terms of capacity, energy consumption, and cost. Results show that exploiting extra spectrum bands is more beneficial than deploying additional regenerators in the C-band.
Geometric Shaping Optimization of 64-APSK Eigenvalue Transmission based on Nonlinear Fourier Transform
Authors: Chen Junda , Chen Yizhao , Duan Yuxiang , Liu Deming , Tang Ming
Published: October 2021

We experimentally demonstrated a geometric shaped (GS) 64-APSK eigenvalue transmission. The diameter distributions of each circles are optimized, OSNR margin improvement in simulations and experiments reached 4.51 dB, and 2.98 dB respectively.
Achievable Rate Comparison between Probabilistically- Shaped Single-Carrier and Entropy-Loaded Multi-Carrier Signaling in a Bandwidth-Limited 1-Tb/s Coherent System
Authors: Che Di , Chen Xi
Published: October 2021

Multicarrier modulation can use entropy loading to adapt a frequency-dependent channel. We compare single- and multi-carrier (SC/MC) signaling in a 100-GBaud coherent system whose performance is mainly degraded by the bandwidth-limited transmitter, and reveal an MC advantage of 0.3 bits/symbol or 20-km reach extension over a single-span transmission.
4096-ary Eigenvalue Modulation Using 12 Triangular-lattice-shaped Eigenvalues
Authors: Mishina Ken , Takeuchi Hiroyuki , Kodama Takeyuki , Yoshida Yuki , Hisano Daisuke , Maruta Akihiro
Published: October 2021

We experimentally demonstrate the transmission of a 4096-ary eigenvalue-modulated signal using 12 triangular-lattice-shaped eigenvalues. A 50-km transmission with a BER < 3.8 × 10-3 at 11.25 Gb/s is achieved successfully.
882 Gbps Transmission over 100 km of SSMF using a Self- Calibrated Single-ended Coherent Receiver
Authors: Le Son Thai , Aref Vahid , Cho Junho , Chen Xi , Che Di
Published: October 2021

We propose a self-calibration technique for single-ended coherent receivers and demonstrate a record net data rate of 882 Gbps over 100 km of SSMF using either a direct field reconstruction scheme or a clipped iterative SSBI cancellation scheme.
Millimeter-wave and Terahertz Photonics for Communications and Sensors
Authors: Nagatsuma Tadao , Fujita Masayuki , Yi Li
Published: October 2021

This paper presents an efficient use of telecom-based photonics technologies in millimeter-wave and terahertz systems, which include high-speed wireless communications in the 300-GHz and 600-GHz bands, and ultra-broadband millimeter-wave radars equipped on the drone.
28-GHz mmWave Hybrid Beamforming System Integrated with a 64-Element Glass Antenna
Authors: Li Xinying , Shih Po-Tsung (Boris) , Ji Qing , Huang Hou-Tzu (Kurt) , Abraha Solomon T. , Kim Cheolbok , Peters David R. , Castellana David F. , Ng’oma Anthony
Published: October 2021

A multi-Gb/s 28-GHz mmWave hybrid-beamforming system integrated with a 64- element antenna array fabricated on a Corning-glass-substrate is demonstrated. DSP-based adaptive-hybrid-algorithms are utilized to achieve both electronic beam-steering and multi-user operation with >23-dB inter-user interference suppression.
Compact K-band Photonic Beamsteerer Assisted with Weakly-Coupled Multi-Core Fiber
Authors: Trinidad Ailee , Morant Maria , Tangdiongga Eduward , Koonen Ton , Llorente Roberto
Published: October 2021

An optical beamsteerer of a photonic integrated circuit employing a weakly-coupled multi-core fiber enables 3-GHz bandwidth in the 24 GHz RF band and a scanning range of 59°, resulting in 16QAM 12 Gbps.
Neuromorphic Photonics for Optical Communication Systems
Authors: Huang Chaoran , de Lima Thomas Ferreira , Fujisawa Shinsuke , Tait Alexander N. , Peng Hsuan-Tung , Shastri Bhavin J. , Wang Ting , Prucnal Paul. R.
Published: October 2021

Neuromorphic photonics creates processors 1000 × faster than electronics while consuming less energy. We will discuss the role of neuromorphic photonics in optical communications, review existing approaches, and outline the required technologies to evolve this field.
Nonlinear Fourier Transform Enabled Multiple Pulses Purification for Soliton Communication
Authors: Wang Yutian , Fu Songnian , Tang Ming , Zhang Chi , Tang Xiahui , Kong Jian , Zhao Luming
Published: October 2021

Nonlinear Fourier transform (NFT) enabled soliton distillation is exploited to purify multiple pulses from an ultrafast fiber laser, which paves a way to manipulate the soliton separation and revives soliton communication.
A Closed-Form Nonlinearity Model for Forward-Raman-Amplified WDM Optical Links
Authors: Zefreh M. Ranjbar , Forghieri F. , Piciaccia S. , Poggiolini P.
Published: October 2021

We propose an accurate nonlinearity closed-form model (CFM) for forward Raman-amplified WDM links which enables fast system optimization. We show a detailed study of a single-span link SNR maximization and flattening.
Record-Low-Loss 83 μm2 Effective Area Fiber and Transmission of 40x369 Gb/s Channels over a Trans-Atlantic Submarine Link with 101 km Spans
Authors: Downie John D. , Liang Xiaojun , Hurley Jason , Matthews Hazel , Stainer Darren , Makovejs Sergejs , Smith Dana
Published: October 2021

We present optical fiber with 83 µm2 effective area and record-low attenuation of 0.1522 dB/km. We conduct experiments with 404 km of fiber in 101 km spans, demonstrating trans-Atlantic system transmission with 369 Gb/s channels.
Nonlinear Impairment Compensation Using Neural Networks
Authors: Fujisawa Shinsuke , Yaman Fatih , Batshon Hussam G. , Tanio Massaki , Ishii Naoto , Huang Chaoran , de Lima Thomas Ferreira , Inada Yoshihisa , Prucnal Paul R. , Kamiya Norifumi , Wang Ting
Published: October 2021

Neural networks are attractive for nonlinear impairment compensation applications in communication systems. In this paper, several approaches to reduce computational complexity of the neural network-based algorithms are presented.
Neural Network Training Framework for Nonlinear Signal-to-Noise Ratio Estimation in Heterogeneous Optical Networks
Authors: Kashi Aazar S. , Cartledge John C. , Chan Wai-Yip
Published: October 2021

A computationally efficient framework is presented for calculating features used for training an ANN-based estimator of the nonlinear SNR in heterogeneous networks. Its efficacy is demonstrated using data computed for 153,576 distinct system configurations.
Kernel-Based Learning-Aided Phase Noise Compensation in Dual-Pump Optical Phase Conjugation Coherent System
Authors: Nguyen T. T. , Boscolo S. , Ali A. A. I. , Tan M. , Zhang T. , Takasaka S. , Sugizaki R. , Sygletos S. , Ellis A. D.
Published: October 2021

We deploy kernel-based time-series prediction to suppress the phase noise induced by small deviations from ideal pump counter-phasing in a dual-pump optical phase conjugation system. We show experimentally 1.5-dB SNR improvement for 16-QAM signals at 4° pump-phase mismatch.
Simplest DSP in Self-Homodyne Coherent Transmission Using Bidirectional Adaptive Polarization Controller
Authors: Wang Li , Chen Yizhao , Wang Xuefeng , Zhao Can , Chen Junda , Tang Ming
Published: October 2021

We propose and develop bidirectional adaptive polarization tracking and compensation for counterpropagating LO and signal in the same fiber respectively. A simplest MIMO-free DSP is achieved in the self-homodyne coherent transmission under dynamic SOP rotation.
Scalable and Reconfigurable True Time Delay Line Based on High Performance Switches
Authors: Song Qian Qian
Published: October 2021

A scalable and reconfigurable optical true time delay line consisting of high performance MZI switch driving by a parallel graphene heater easily scaled to M bit with a slight increase in dimensions was proposed.
Flexible Bandwidth Allocation using OFDM in Mode Forming Optical Access Network
Authors: Akiyama Miho , Kobayashi Hirokazu , Iwashita Katsushi
Published: October 2021

Flexible bandwidth allocation using OFDM mode-forming techniques is proposed. 2 channel 6 subcarrier OFDM signals, stabilized by feedback, are transmitted in a conventional GI-MMF and each subcarrier is allocated arbitrary to different output port.
Semi-supervised Anomaly Detection with Imbalanced Data for Failure Detection in Optical Networks
Authors: Liu SongLin , Wang Danshi , Zhang Chunyu , Wang Lingling , Zhang Min
Published: October 2021

We proposed an autoencoder-based anomaly-detection for optical failure detection with imbalanced data (<3%), which identifies implicit failure and achieves detection accuracy of 96.8% and F1 value of 0.9224.
Vehicle Run-off-Road Event Automatic Detection by Fiber Sensing Technology
Authors: Li Tingfeng , Chen Yuheng , Huang Ming-Fang , Han Shaobo , Wang Ting
Published: October 2021

We demonstrate a new application of fiber-optic-sensing and machine learning techniques for vehicle run-off-road events detection to enhance roadway safety and efficiency. The proposed approach achieves high accuracy in a testbed under various experimental conditions.
A Sum-Difference Microring Filter for Lossless Bandwidth Tuning
Authors: Ren Yang , Jiang Zhiping , Van Vien
Published: October 2021

We propose a general variable-bandwidth filter for lossless tuning based on the sum-difference microring filter architecture. We demonstrate a 4th-order filter in SOI, achieving ∼5 folds increase in bandwidth without extra insertion loss or degradation in filter shape.
Large Dynamic Range Microwave Photonic Phase Shifter Based on Multi-order Sidebands Optical Spectrum Vector Process Technique
Authors: Bai Yunping , Song Xiyao , Su Zhonghan , Zheng Zhennan , Zhang Hao , Gao Xinlu , Huang Shanguo
Published: October 2021

A novel linearized microwave photonic phase shifter (MPPS) with high power efficiency is proposed and experimentally demonstrated. In the experiment, the 14-dB and 24-dB improvement are realized in the gain and dynamic range respectively.
Design Optimization of Uncoupled Six-core Fibers in Standard Cladding Diameter Using Artificial Intelligence
Authors: Mu Xun , Ferreira Filipe M. , Ottino Alessandro , Zervas Georgios
Published: October 2021

We report on ultra-wide-band and long-haul compatible 125µm six-core trench-assisted fiber designs. The AI-optimization process considers crosstalk, effective area, and bandwidth. We show that homogeneous cores can lead to low complexity yet high capacity fiber.
Monolithically integrated silicon nitride platform
Authors: Bian Yusheng , Meagher Colleen , Nummy Karen , Chandran Sujith , Lee Won Suk , Aboketaf Abdelsalam , Ma Danhao , Sporer Ryan , Rakowski Michal , Yuksek Nuh , Esopi Monica , Peng Bo , Liu Yangyang , Thomas Abu , Barwicz Tymon , Hirokawa Takako , Ayala Javier , Sahin Asli , Stricker Andy , Krishnamurthy Subramanian , Hu Shuren , Sowinski Zoey , McLean Kate , Medina Louis , Dezfulian Kevin , Zhang Michelle , Nafari Mona , Jia Zhuoqiang , Mishra Kaushikee , Chowdhury Asif , Afzal Francis , Harris Brendan , Mosleh Salman , Paredes Bruna , Dahlem Marcus , Viegas Jaime , Augur Rod , Riggs Dave , Lee Luke , Lin Wenhe , Jacob Ajey , Jamin Fen , Randall Mai , Parsa Hemanth , Gupta Vikas , Yu Anthony , Giewont Ken , Letavic Ted , Pellerin John
Published: October 2021

A comprehensive set of SiN building blocks was demonstrated on a monolithic SiPh platform. Low-loss SiN waveguides (<0.35dB/cm), Si-SiN transitions (0.026dB), efficient polarization splitters/rotators, and compact ring WDM filters were realized at O-band.
Towards Low Computational Complexity for Neural Network-Based Equalization in PAM4 Short-Reach Direct Detection Systems by Multi-Symbol Prediction
Authors: Xu Zhaopeng , Sun Chuanbowen , Dong Shuangyu , Manton Jonathan H. , Shieh William
Published: October 2021

We propose NN-based multi-symbol equalization for a 50-Gb/s PAM4 direct-detection link which significantly reduces computational complexity without sacrificing BER performance of conventional single-output NNs. Complexity reduction of 42.7% is achieved when 8 outputs are selected.
Computing-aware Proactive Network Reconfiguration for Optical Networks Interconnected Edge Computing System
Authors: Li Zhekang , Gu Rentao , Wang Linna , Ji Yuefeng
Published: October 2021

This paper demonstrates a proactively reconfigured edge network that can adaptively configure IP topology for dynamic service demand. Simulation result show the average utilization has improved from 32.50% to 68.98% compared traditional static network.
Security Analysis of Quantum Noise Stream Cipher under Fast Correlation Attack
Authors: Zhang Mingrui , Li Yajie , Song Haokun , Wang Bo , Zhao Yongli , Zhang Jie
Published: October 2021

We conduct an experiment of security analysis on 300km QAM/QNSC transmission under fast correlation attack. Noise masking model and hypothesis testing theory are adopted. Experiment results provide several solutions to achieve secure transmission in QAM/QNSC.
Microwave Frequency Comb Generation Based on Active Mode-Locking of a Polarization-Multiplexed Dual Loop Optoelectronic Oscillator
Authors: Li Yan , Wang Muguang , Zhang Jing , Mu Hongqian , Wang Chuncan , Yan Fengping
Published: October 2021

A photonics-assisted microwave frequency comb (MFC) generator based on a polarization-multiplexed dual loop optoelectronic oscillator (OEO) is proposed. Experimental results demonstrate the generated MFC has adjustable comb interval and low phase noise.
8 Tbps Co-Packaged FPGA and Silicon Photonics Optical IO
Authors: Hosseini Kaveh , Kok Edwin , Shumarayev Sergey Y. , Chiu Chia-Pin , Sarkar Arnab , Toda Asako , Ke Yanjing , Chan Allen , Jeong Daniel , Zhang Mason , Raman Sangeeta , Tran Thungoc , Singh Kumar Abhishek , Bhargava Pavan , Zhang Chong , Lu Haiwei , Mahajan Ravi , Li Xiaoqian , Deshpande Nitin , O’Keeffe Conor , Krishnamoorthy Uma , Sun Chen , Meade Roy , Stojanovic Vladimir , Wade Mark
Published: October 2021

The first 8 Tbps co-packaged FPGA with Silicon-Photonics IO is presented paving the way for co-packaged compute and optical-IO. The Multi-Chip Package integrates Stratix® 10 FPGA with up to five optical IO chiplets.
Kerr Comb-Driven Silicon Photonic Transmitter
Authors: Rizzo Anthony , Novick Asher , Gopal Vignesh , Daudlin Stuart , Murthy Vaishnavi , Yang Hao , Cheng Qixiang , Okawachi Yoshitomo , Kim Bok Young , Ji Xingchen , Fanto Michael , Lipson Michal , Gaeta Alexander , Bergman Keren
Published: October 2021

We demonstrate the first o n-chip silicon photonic transmitter u sing a Kerr frequency comb source for massive wavelength parallelism. The architecture is scalable to hundreds of wavelength channels, paving the way for multi-Tb/s photonic interconnects.
Automated Cloning and Lookup Table Generation for Reconfigurable Photonic Integrated Filters
Authors: Petrini Matteo , Milanizadeh Maziyar , Morichetti Francesco , Melloni Andrea
Published: October 2021

We propose a strategy to automatically replicate the spectral response of photonic filters, here applied to coupled microring resonator architectures. This control scheme is exploited to generate Lookup Tables for devices operating in flexible networks.
Active Compensation of Nonlinear Effects in Silicon Photonic Microring Filters
Authors: Petrini Matteo , Milanizadeh Maziyar , Morichetti Francesco , Melloni Andrea
Published: October 2021

We propose a technique for automated active compensation of nonlinear effects in silicon photonic coupled microring resonator filters. Transmission performances of 200 Gbit/s DP 16-QAM signals up to 20 dBm are evaluated.
Optical Amplifiers for Wideband Optical Transmission Systems
Authors: Rapp Lutz , Eiselt Michael
Published: October 2021

Exploiting new wavelength bands for data transmission is the most economic step for further increasing the capacity of optical links. Important aspects of the most relevant amplifier technologies supporting this step are discussed.
S, C and Extended L-Band Transmission with Doped Fiber and Distributed Raman Amplification
Authors: Puttnam Benjamin J. , Luís Ruben S. , Rademacher Georg , Mendez-Astudilio Manuel , Awaji Yoshinari , Furukawa Hideaki
Published: October 2021

We transmit 690, near continuous, 25 GHz spaced channels in 138 nm of S, C and extended L-bands over 54 km of standard single-mode fiber. Erbium and Thulium doped-fiber amplifiers with distributed Raman amplification enable a 206.1 Tb/s GMI estimated data-rate.
Single- vs. Multi-Band Optimized Power Control in C+L WDM 400G Line Systems
Authors: Virgillito Emanuele , London Elliot , D’Amico Andrea , Correia Bruno , Napoli Antonio , Curri Vittorio
Published: October 2021

We propose an optimal strategy for C+L multi-band power control assessing its performance against a single-band one. Via SSFM simulations, we demonstrate that the L-band can be optimized independently.
9 Tb/s Transmission using 29 mW Optical Pump Power per EDFA with 1.24 Tb/s/W Power Efficiency over 15,050 km
Authors: Cai J.-X. , Mazurczyk M. V. , Vedala G. , Hu Y. , Sinkin O. , Bolshtyansky M. A. , Foursa D. G. , Pilipetskii A. N.
Published: October 2021

We transmit 143x32.6 GBd 8D-QPSK signal over 15,050 km with EDFAs consuming 29 mW of 980 nm-pump power. We experimentally achieve record power efficiencies from 6.5 to 1.24 Tb/s/W for transmission distances ranging from 6,020 to 15,050 km respectively.
Space-Time Diversity Phase Retrieval Receiver
Authors: Chen Haoshuo , Fontaine Nicolas K. , Essiambre René-Jean , Huang Hanzi , Mazur Mikael , Ryf Roland , Neilson David T.
Published: October 2021

We enhance the performance of the phase retrieval receiver employing space-time diversity to approach coherent detection’s sensitivity limit and experimentally realize >100 Gbit/s carrier-less transmission over 55-km single-mode fiber.
Single-photodiode 100 Gbaud PAM-6 Transmission with Extended Transmitter Bandwidth using Optical Time and Polarization Interleaving
Authors: Fu Yan , Zhang Xiaoling , Kong Deming , Li Longsheng , Jia Shi , Hu Weisheng , Hu Hao
Published: October 2021

We demonstrate an optical time and polarization interleaving (OTPI) technique to extend the transmitter bandwidth. Using a single photodiode, 25-GHz DACs and modulators, 100 Gbaud OTPI-PAM-6 signals have been transmitted over 1 km NZDSF.
100 Gbit/s PAM-16 Transmission in the 2-µm Band over a 1.15-km Hollow-Core Fiber
Authors: Kong Deming , Ren Zhengqi , Jung Yongmin , Chen Yong , Wheeler Natalie , Galili Michael , Oxenløwe Leif K , Richardson David J , Hu Hao
Published: October 2021

We demonstrate the first low-latency 2 -µm-band PAM signal transmission using a hollow-core fiber (HCF). PAM-8 and PAM-16 signals are successfully transmitted over 1.15-km HCF with line rates of 96 Gbit/s and 100 Gbit/s, respectively.
Scalable 1×N switch via on-chip tunable metasurface
Authors: Liu Yingjie , Wang Xi , Yao Yong , Du Jiangbing , Song Qinghai , Xu Ke
Published: October 2021

An integrated 1×N switch is proposed and experimentally demonstrated via tunable silicon photonic metasurface which has an insertion loss of 3 dB and extinction ratio of 5 dB in the C band.
Wireless Body-Area Networks in Medical Applications Using Optical Signal Transmission
Authors: Haddad Oussama , Khalighi Mohammad Ali , Zubow Anatolij
Published: October 2021

We consider optical wireless technology-based medical wireless body-area networks (WBANs). After presenting the most recent results on channel modeling and signal transmission, a new multiple access MAC layer scheme is proposed for intra-WBAN links.
Field demonstration of distributed quantum sensing without post-selection
Authors: Zhao Si-Ran , Zhang Yu-Zhe , Liu Wen-Zhao , Guan Jian-Yu , Zhang Weijun , Li Cheng-Long , Bai Bing , Li Ming-Han , Liu Yang , You Lixing , Zhang Jun , Fan Jingyun , Xu Feihu , Zhang Qiang , Pan Jian-Wei
Published: October 2021

We demonstrate distributed quantum sensing in field and show the unconditional violation (without post-selection) of shot-noise limit up to 0.916 dB with the averaged heralding efficiency of 73.88% for the field distance of 240 m.
A Non-Volatile Optical Memory in Silicon Photonics
Authors: Geler-Kremer Jacqueline , Eltes Felix , Stark Pascal , Sharma Ankita , Caimi Daniele , Offrein Bert Jan , Fompeyrine Jean , Abel Stefan
Published: October 2021

We demonstrate a non-volatile optical memory element integrated in silicon photonics for low-power reconfigurable photonic circuits and neural networks. Stable transmission states are set by manipulating ferroelectric domains in BaTiO3 films embedded in photonic waveguides.
Optical Interconnects for large scale computing: How Do We Get Beyond the Cost & Power Wall?
Authors: Taubenblatt M. A.
Published: October 2021

Bandwidth demands for datacenter networks continues as performance increases and AI and new HPC workloads explode. Managing power and costs will require a range of solutions from new network architectures to co-packaging.
MOSCAP Ring Modulator with 1.5 µm Radius, 8.5 THz FSR and 30 GHz/V Shift Efficiency in a 45 nm SOI CMOS Process
Authors: Gevorgyan Hayk , Khilo Anatol , Wade Mark T. , Stojanović Vladimir M. , Popović Miloš A.
Published: October 2021

We demonstrate the smallest microring modulator to date, with 1.5 µm radius, record 8.5 THz FSR and 30 GHz/V O-band shift efficiency, using a MOSCAP structure in a new 45 nm monolithic CMOS electronic-photonic process (45CLO). It could enable massively-parallel optical links with low energy and high bandwidth density.
Simultaneously Precise Calibration of Frequency Response and IQ Skew for 100Gbaud Optical Transceiver
Authors: Li Di , Chen Zexin , Zhang Li , Yi Pin , Wang Jingchuan , Song Haiping , Cheng Mengfan , Fu Songnian , Tang Ming , Qin Yuwen , Liu Deming , Deng Lei
Published: October 2021

We report a precise calibration method that can simultaneously characterize both frequency response and IQ-skew of coherent optical transceivers. 100GBaud-Nyquist-16QAM and 80GBaud-Nyquist-64QAM signal can be obtained by the use of commercial class-40 CDM and ICR.
Performance Prediction of 100 Gb/s PAM4 Optical Systems Using a Frequency Dependent Nonlinear Model
Authors: Malouin Christian , Amiralizadeh Siamak , Malinge Yann , Narayan Raghuram , Al-hemyari Kadhair , Gupta Sanjeev , Islam Syed S. , Lin Yiching , Lin Wenhua , Hong Jin
Published: October 2021

A frequency-dependent nonlinear model has been proposed and experimentally verified at 100 Gb/s using PAM4. This universal model simply requires adjusting two sets of polynomials based on the THD data and is modulation format agnostic.