bluuebunny/crossref_metadata_2025 huggingface dataset:
Fast-response, energy-efficient thermo-optic silicon phase shifter based on non-Hermitian engineering
Authors: Chang Chang , Li Ting , Wu Yulin , Zhou Peiji , Zou Yi
Published: April 2022

We present a fast response, energy-efficient thermo-optic silicon phase shifter based on Non-Hermitian engineering. A 729 kHz bandwidth and an 11.3 mW π-phase-shift (Pπ) power consumption are demonstrated at 1550 nm wavelength.
ADMIRE: Demonstration of Collaborative Data-Driven and Model-Driven Intelligent Routing Engine for IP/Optical Cross-Layer Optimization in X-Haul Networks
Authors: Chen Zhuo , Zhang Jiawei , Zhang Bojun , Wang Ruikun , Ma Huangxu , Ji Yuefeng
Published: April 2022

We first demonstrate a collaborative data-driven (using deep reinforcement learning) and model-driven (using experience knowledge) routing engine for cross-layer optimization in a real X-Haul testbed with a real dataset, which achieves 23% wavelength saving.
On the Application of Explainable Artificial Intelligence to Lightpath QoT Estimation
Authors: Ayoub Omran , Bianco Andrea , Andreoletti Davide , Troia Sebastian , Giordano Silvia , Rottondi Cristina
Published: April 2022

We demonstrate the potentialities of explainable AI when applied to distill knowledge from a trained supervised machine learning model for lightpath quality of transmission estimation in optical networks, with synthetic datasets.
>87%Complexity Reduction at 25-GS/s, 50-Gbps and 30-dB Loss Budget LR-OFDM PON using Digital Predistortion
Authors: Nguyen Hong-Minh , Wei Chia-Chien , Chuang Chun-Yen , Chen Jyehong
Published: April 2022

We demonstrate the digital predistortion (DPD) at a reduced sampling rate in high-loss-budget 10G-class LR-PONs. A >50-Gbps transmission was achieved over 30-70 km using fixed DPD with >87% complexity reduction, compared to fully optimized DPD.
High Information Rate of 128-GBaud 1.8-Tb/s and 64-GBaud 1.03-Tb/s Signal Generation and Detection Using Frequency-Domain 8×2 MIMO Equalization
Authors: Nakamura M. , Kobayashi T. , Hamaoka F. , Miyamoto Y.
Published: April 2022

We demonstrate 1-Tb/s and 1.8-Tb/s net rate signals with 16- and 14-bit/4Dsymbol information rates at 64 and 128 GBaud by precisely equalizing transmitter- and receiver-side imperfections with frequency-domain 8×2 MIMO linear equalization and nonlinear pre-distortion.
Experimental Investigation of Influence of SOA-Induced Nonlinear Distortion on High-Symbol-Rate 168-GBaud Signal for Achieving Ultra-Broadband Optical Frontend
Authors: Hamaoka F. , Nakamura M. , Kobayashi T. , Nagatani M. , Wakita H. , Yamazaki H. , Ogiso Y. , Miyamoto Y.
Published: April 2022

We propose a transmitter configuration using an ultra-broadband optical frontend integrated with a bandwidth multiplexer and SOA. Experiments demonstrate the SOA-induced nonlinear distortion slightly affects (<1-dB SNR degradation) the 1-Tb/s 168-GBaud signal using AMUX-integrated frontend.
Generation and Detection of 200-GBaud Signals via Electrical Multiplexing
Authors: Chen Xi
Published: April 2022

We review the generation and detection of 200-GBaud optical signals and discuss the system design metrics and signal integrity.
FrFT Based Joint Time/Frequency Synchronization for Digital Subcarrier Multiplexing System
Authors: Hu Zihe , Wang Li , Chen Junda , Chen Yizhao , Zhao Can , Li Weihao , Tang Ming
Published: April 2022

We propose an in-advance time/frequency synchronization method for SCM using fractional Fourier transform pilot. With low complexity and fast speed, the proposed method is validated to be robust against strong filtering and fiber nonlinearity.
Self-tuning quantum key distribution transmitter based on a genetic algorithm
Authors: Lo Y. S. , Woodward R. I. , Roger T. , Lovic V. , Yuan Z. L. , Shields A. J.
Published: April 2022

We demonstrate a self-tuning QKD transmitter by employing a genetic algorithm for automated optimisation. Without user intervention, laser parameters are determined automatically to minimise quantum bit error rates to similar levels achieved by QKD specialists.
A continuous variable quantum microcomb with 2.1 dB raw squeezing
Authors: Jahanbozorgi Mandana , Yang Zijiao , Jeong Dongin , Sun Shuman , Pfister Olivier , Lee Hansuek , Yi Xu
Published: April 2022

We demonstrate a squeezed quantum microcomb consisting of 22 simultaneously two-mode squeezed comb pairs (44 qumodes) with maximum raw squeezing of 2.1 dB, which can serve as the building bricks for scalable continuous-variable-based quantum computing.
Time-bin Quantum Key Distribution exploiting the iPOGNAC polarization moulator and Qubit4Sync temporal synchronization
Authors: Agnesi Costantino , Scalcon Davide , Avesani Marco , Calderaro Luca , Foletto Giulio , Stanco Andrea , Vallone Giuseppe , Villoresi Paolo
Published: April 2022

Here we present cross-encoded Quantum Key Distribution where state encoding is performed with a self-compensating and calibration-free polarization modulator, while transmission is performed in time-bin encoding resistant to perturbances from the fiber channel.
qTReX : A semi-autonomous continuous-variable quantum key distribution system
Authors: Jain Nitin , Chin Hou-Man , Mani Hossein , Bidstrup Erik , Andersen Ulrik L. , Gehring Tobias
Published: April 2022

Continuous-variable quantum cryptography can leverage existing telecommunication technology for solving the cryptographic task of secure key distribution. We present qTReX: A low-noise, highly stable, semi-autonomous prototype using optical coherent states for quantum key distribution.
First Demonstration of Uncoupled 4-Core Multicore Fiber in a Submarine Cable Prototype with Integrated Multicore EDFA
Authors: Takeshita Hitoshi , Nakamura Kohei , Matsuo Yuushi , Inoue Takanori , Masuda Daishi , Hiwatashi Tetsuya , Hosokawa Kohei , Inada Yoshihisa , Le Taillandier de Gabory Emmanuel
Published: April 2022

We demonstrate the first 15.2 km prototype of submarine cable with 4-core MCF. Cabled MCF changes are negligible. We confirmed MC-EDFA integration to the cable improves Q-value by 0.6 dB through real-time 5,350 km transmission.
Single-mode emission from a topological lattice with distributed gain and dielectric medium
Authors: Scherrer M. , Kim S. , Choi H. , Schmid H. , Lee C.-W. , Moselund K. E.
Published: April 2022

We demonstrate a monolithically integrated active topological photonic structure. Using a unique design with distributed gain/dielectric medium, we selectively address the topological mode to achieve robust and tunable continuous-wave single-mode emission at room temperature.
Reduced Coating Diameter Fibers for High Density Cables
Authors: Li Ming-Jun , Abedijaberi Arash , Niu Weijun , Leonhardt Eric E , Clark Donald A , Scannell Garth W , Drake Matthew R , Stone Jeffery S , McCarthy Joseph E , Wallace Arthur L , Deng Huayun , Baker Linda S , De Pedro Hector M , Kent Brian A , Gu Yunfeng
Published: April 2022

We review recent progress on reduced coating diameter fibers for increasing core density for optical interconnect applications. We discuss design considerations on microbending and mechanical reliability and present new experimental results.
Comparison of Different Deformation Functions Modeling Micro-bending Loss of Optical Fibers on Sandpaper Test
Authors: Várallyay Zoltán , Mihálffy Tamás , Mukasa Kazunori
Published: April 2022

Different deformation functions to find the best fit to the experimental data of micro-bending loss measurements of optical fibers are investigated. Best outcome, fitting the parameters is in the form of a Gaussian power spectrum.
Low-loss Mode Field Adapter Using Reverse Tapering for Fundamental Mode Transmission over MMFs
Authors: Yang Linbo , Yang Zhiqun , Xu Tao , Hou Lijie , Zhou Rui , Gan Lin , Cao Shiyi , Xiao Xinhua , Zhang Lin
Published: April 2022

We demonstrate a low-loss mode field adapter based on reverse tapering for fundamental mode transmission in MMFs, which enables 7-dB MPI reduction and 2-dB Q factor improvement, compared with the center-launching situation.
Dynamic Reconfiguration of WDM Virtual Network Topology over SDM Networks for Spatial Channel Failure Recovery with gRPC Telemetry
Authors: Muñoz Raul , Manso Carlos , Balasis Filippos , Casellas Ramon , Vilalta Ricard , Martínez Ricardo , Wang Cen , Yoshikane Noboru , Tsuritani Takehiro , Morita Itsuro
Published: April 2022

We experimentally demonstrate the dynamic reconfiguration o f W DM VNTs in response to SDM spatial channel failures. We present an SDN control architecture with gRPC-telemetry and analytics to detect failures and restore failed virtual WDM links
QoT-Driven Optical Control and Data Plane in Multi-Vendor Disaggregated Networks
Authors: Borraccini Giacomo , Straullu Stefano , Giorgetti Alessio , D’Ingillo Rocco , Scano Davide , D’Amico Andrea , Virgillito Emanuele , Nespola Antonino , Sambo Nicola , Cugini Filippo , Curri Vittorio
Published: April 2022

A novel disaggregated network architecture with independent PCE and optical control based on GNPy is proposed and experimentally validated over a network including two independent OLSs for total 1400 km, ROADM whiteboxes and pluggable transceivers.
High Speed Ge/Si Avalanche Photodiode with High Sensitivity for 50Gbit/s and 100Gbit/s Optical Access Systems
Authors: Hong Chingyin , Shi Bin , Qi Fan , Cai Pengfei , Duan Yanhui , Hou Guanghui , Su Tzungi , Chiu Tehuang , Li Su , Chen Wang , Pan Dong
Published: April 2022

25GBaud and 50GBaud APDs with high sensitivity gain compared with PDs are reviewed. The great consistency and excellent performance of the APDs could great satisfy the requirements of 50Gbit/s and 100Gbit/s optical access systems, such as 400GbE datacenters, 100G ER1 and 50G PON etc.
Surface Normal Electro-Absorption Modulators as Colorless Upstream Transmitters in a WDM Passive Optical Network
Authors: Iannone Patrick , Grillanda Stefano , Chen Xi , Hu Ting-Chen , Basavanhally Nagesh , Tate Alaric , Kopf Rose , Cappuzzo Mark , Low Yee , Earnshaw Mark , Neilson David
Published: April 2022

We demonstrate a WDM passive optical network that uses high-speed, polarization-independent surface normal modulators as upstream 25-Gb/s transmitters. A band of CW wavelengths, sourced at the optical line terminal, establishes the upstream channels. System performance in our single-fiber architecture is limited by Rayleigh backscattering, but is below the FEC threshold.
Experimental Characterization of Colorless Phase Retrieval Under Ultrafast Wavelength Drift for Upstream PON Transmission
Authors: Huang Hanzi , Chen Haoshuo , Fontaine Nicolas K. , Song Yingxiong , Mazur Mikael , Dallachiesa Lauren , Zhang Yuanhang , Ye Chenhui , Van Veen Dora , Houtsma Vincent , Ryf Roland , Neilson David T.
Published: April 2022

We successfully recover 40-GBaud QPSK signal under ultrafast wavelength drift up to 20,000 nm/s after 40-km single-mode fiber (SMF) transmission employing col-orless phase retrieval receiver tackling upstream burst-mode issues in high-speed PON.
Up to 360 Gb/s Optical Interconnects with Ultra-high Bandwidth Thin Film Lithium Niobate Modulator
Authors: Yang Fan , Fang Xiansong , Chen Xinyu , Li Yanping , Zhang Fan
Published: April 2022

We demonstrate ultrahigh-speed optical interconnects with single lane bit rate up to 360Gb/s (120GBaud) PAM-8 signal based on thin film lithium niobate modulator with a 3-dB bandwidth larger than 110GHz.
Experimental Demonstration of Adaptive-Optics-Based Turbulence Mitigation in a Mode-Multiplexed Free-Space Optical Link by Using both Radial and Azimuthal Spatial Indices
Authors: Su Xinzhou , Duan Yuxiang , Zhou Huibin , Song Hao , Pang Kai , Liu Cong , Zou Kaiheng , Zhang Runzhou , Song Haoqian , Hu Nanzhe , Tur Moshe , Willner Alan E.
Published: April 2022

We experimentally demonstrate turbulence mitigation by adaptive optics for a 400-Gbit/s free-space link multiplexing four Laguerre Gaussian modes using both radial and azimuthal indices. The turbulence-induced power loss and crosstalk are reduced by ~10 dB and ~18 dB, respectively.
Demonstration of Turbulence Resilient Self-Coherent Free-Space Optical Communications Using a Pilot Tone and an Array of Smaller Photodiodes for Bandwidth Enhancement
Authors: Song Hao , Zhang Runzhou , Zhou Huibin , Su Xinzhou , Zou Kaiheng , Duan Yuxiang , Song Haoqian , Pang Kai , Hu Nanzhe , Karapetyan Narek , Minoofar Amir , Tur Moshe , Willner Alan E.
Published: April 2022

We demonstrate a 4-Gbit/s 16-QAM turbulence-resilient self-coherent free-space optical link using a pilot tone. An array of smaller photodiodes is used to potentially increase the overall bandwidth under turbulence (D/r0 = ~8.4).
Demonstration of an Air-Water Communication Link Through Dynamic Aerosol and Water Curvature when Considering the 2-D Modal Coupling of a Spatially Structured Beam
Authors: Song Haoqian , Zhang Runzhou , Zhou Huibin , Zou Kaiheng , Hu Nanzhe , Su Xinzhou , Song Hao , Pang Kai , Duan Yuxiang , Park Daeyoung , Lynn Brittany , Gbur Greg , Dogariu Aristide , Watkins Richard J. , Miller Jerome K. , Johnson Eric , Tur Moshe , Willner Alan E.
Published: April 2022

We experimentally investigate the 2-D modal power coupling of LG11 and HG11 beams under dynamic aerosol and water curvature, and demonstrate a 1-Gbit/s LG11FSO link, having a penalty of ~3-dB compared with no-effect cases.
Free-space Optics for Communications at Sea
Authors: Newell K.T. , O’Toole M.P. , Patel K. , Youssef R.B , Venkat R.A. , Willitsford A.H. , Talisa N.B.
Published: April 2022

We discuss our free-space-optical communication system, specifically exploring tradeoffs in pointing, acquisition, and tracking design and the use of retransmission to mitigate the impact of turbulence-induced fades.
Core Selective Switch Supporting 15 Cores Per Port Using Bundled Three 5-Core Fibers
Authors: Uchida Yudai , Ishikawa Tsubasa , Urashima Itsuki , Murao Shoma , Kodama Takahiro , Sakurai Yasuki , Sugizaki Ryuichi , Jinno Masahiko
Published: April 2022

We prototyped a 15-core 1×8 core selective switch (CSS). The high core count CSS is achieved by bundling three 5-core fibers (5-CFs) and collimating/demultiplexing beams from the input bundled three 5-CFs using a single microlens.
64-QAM Self-Coherent Transmission Using Symmetric Silicon Photonic Stokes-Vector Receiver
Authors: Ishimura Shota , Fukui Taichiro , Tanomura Ryota , Soma Go , Nakano Yoshiaki , Tanemura Takuo
Published: April 2022

We propose a robust silicon photonic Stokes-vector receiver based on fully symmetric waveguides without a mode-selective directional coupler. By using a fabricated receiver, we experimentally demonstrate 30-Gb/s 64-QAM self-coherent transmission over a 25-km single-mode fiber.
Simple and ultrafast automatic bias control for optical IQ modulators enabled by dither vector mapping monitoring
Authors: Li Hongyu , Huang Chuanming , Wang Yuanxiang , Deng Rui , Cheng Mengfan , Yang Qi , Liu Deming , Tang Ming , Deng Lei
Published: April 2022

A simple and ultrafast automatic bias control for optical IQ modulators is proposed using dither-vector-mapping monitoring. It is verified in 40/20Gbaud 16/64QAM signal transmissions, and the tracking time (0.3~0.5s) is 30-times faster than commercial products.
Dispersion Compensation of 30GBaud/s NRZ and PAM4 data using integrated Silicon Nitride Gratings
Authors: Chen George Fengrong , Ong Kenny Yong Keng , Chia Xavier Xujie , Cao Yanmei , Tan Dawn T. H.
Published: April 2022

Dispersion compensation is demonstrated using on-chip Silicon Nitride Bragg Gratings. Impaired 30GBaud/s NRZ and PAM4 eye diagrams are restored and a power penalty improvement of 1.3dB at a Bit Error Rate of 10−12 is achieved.
Ultra-Low-Loss MCF Fanouts for Submarine SDM Applications
Authors: Kopp V.I. , Park J. , Singer J. , Neugroschl D. , Suganuma T. , Hasegawa T. , Ohtsuka T. , Tazawa H.
Published: April 2022

MCFs have been developed for submarine deployment. Reliability and insertion loss are gating factors for this demanding application. Here we demonstrate a 0.15-dB-loss fanout, which is fusion spliced to a pure-silica two-core submarine-grade MCF.
Optical Phased Array for 905-nm LIDAR applications integrated on 300mm Si-Photonic Platform
Authors: Monfray S. , Guerber S. , Montagné A. , Fowler D. , Grosse P. , Planchot J. , Ristoiu D. , Baron F. , Brihoum M. , Babaud L. , Taute A. , Kempf E. , Rovayaz K. , Chantraine P. , Delmedico S. , Leverd F. , Balme L. , Pellissier D. , Haxaire K. , Guillermet M. , Mermoz S. , Hello M. , Jan S. , Chevalier P. , Boeuf F.
Published: April 2022

In this paper we present the first integration of a 2D Optical Phased Array (OPA) for 905nm LIDAR applications on our 300mm SWIR photonic platform DAPHNE, based on Si & SiN components.
Optimal deployments of 400 Gb/s multihaul CFP2-DCO transponders in transparent IPoWDM core networks
Authors: Zami Thierry , Lavigne Bruno
Published: April 2022

By comparing different strategies for deploying pluggable CFP2-DCO transponders interconnecting 400 Gb/s ports of distant IP routers in core WDM networks, we identify the one minimizing the number of required IP ports and/or of transponders per Gb/s.
Link Tomography for Amplifier Gain Profile Estimation and Failure Detection in C+L-band Open Line Systems
Authors: Sena Matheus , Emmerich Robert , Shariati Behnam , Fischer Johannes K. , Freund Ronald
Published: April 2022

We experimentally demonstrate a distance-wise, wavelength-dependent link tomography extraction scheme using receiver DSP. This approach permits the estimation of gain spectrum and tilt in C+L-band EDFAs with a maximum mean absolute error of 0.6 dB.
Model-aided Geometrical Shaping of Dual-polarization 4D Formats in the Nonlinear Fiber Channel
Authors: Liga Gabriele , Chen Bin , Alvarado Alex
Published: April 2022

The geometry of dual-polarization four-dimensional constellations is optimized in the optical fiber channel using a recent nonlinear interference model. A 0.27 bit/4D rate gain and 13% reach increase are attained compared to polarization-multiplexed formats.
Mutual Shaping and Pre-emphasis Gain Magnification in the Throughput Maximisation for Ultrawideband Transmission
Authors: Vasylchenkova Anastasiia , Sillekens Eric , Killey Robert I. , Bayvel Polina
Published: April 2022

Abstract: We demonstrate that in ultrawideband transmisison over 20THz, the added value of joint probabilistic shaping and power pre-emphasis is a factor of two higher than their individual contributions and gives a 20% increase in total mutual information.
Role of Analogue Radio-over-Fibre Technology Beyond 5G
Authors: Barry Liam P. , Delmade Amol , Dass Devika , Browning Colm
Published: April 2022

Photonics-based mm-wave communication systems employing optical heterodyning can enable high-capacity wireless networks for systems beyond 5G. This work presents photonic, optoelectronic and signal processing technologies to overcome phase/frequency noise issues associated with photonics-based mm-wave systems.
High output power DBR laser for FMCW LiDAR system
Authors: Zhang Gong , Ding Zhihuan , Wang Kuankuan , Lu Qianyin , Guo Weihua
Published: April 2022

We demonstrated a DBR laser with the output power reaching 96 mW. The linear frequency sweep of 24 GHz has been achieved with nonlinearity of 0.021% and 0.02% in the up and down ramps, respectively.
Long-distance random fiber laser sensing system with ultra-fast signal demodulation
Authors: Lin Shengtao , Wang Zinan , Qi Yifei , Rao Yunjiang
Published: April 2022

Based on shape characteristics of the Raman gain spectrum, we extend the Random fiber laser remote sensing scenarios from quasi-static to dynamic, achieving 10 kHz signal demodulation over 100 km fiber.
Single-shot hybrid CP-ϕ OTDR/CP-BOTDA system for simultaneous distributed temperature/strain sensing
Authors: Wang Yuan , Bao Xiaoyi
Published: April 2022

A real time simultaneous temperature and strain measurement based on hybrid chirped pulsed ϕ-OTDR and BOTDA is demonstrated for the first time. The high accuracy of 4.3 μɛ for strain and 0.32°C for temperature is achieved over 5 km non-uniform fiber.
Transmission of 400GBASE-LR8 Over 15 km Deployed Step-Index 4-Core fiber for Data Centre Interconnects
Authors: Elson Daniel J. , Wakayama Yuta , Beppu Shohei , Soma Daiki , Yoshikane Noboru
Published: April 2022

We demonstrate transmission of 400GBASE-LR8 signals over 15 km of installed simple step-index 4-core fiber. Resultant symbol error rate was below the KP4-FEC threshold showing the suitability of multicore fibers as data centre interconnects.
High Degree ROADM Cluster Node
Authors: Mehrvar Hamid , Hui Xiang , Jun Sun , Bernier Eric
Published: April 2022

A low-cost ROADM cluster node with flexible add/drop and scalable to 100s of degree is proposed for next generation optical networks. It disaggregate line and add/drop functions of the cluster into different chassis. A proposed order-based connection management algorithm achieves better than 10-4 blocking despite less than 30% dilation in cluster design.
First 100Gb/s Fine-Granularity Flexible-Rate PON Based on Discrete Multi-Tone and PAPR Optimization
Authors: Zhou Ji , He Jiale , Lu Xiaofeng , Wang Guanyu , Bo Yu , Liu Gengchen , Huang Yuanda , Li Liangchuan , Wang Haide , Mo Wenxuan , Liu Weiping , Yu Changyuan , Li Zhaohui
Published: April 2022

We propose the first 100Gb/s fine-granularity flexible-rate PON based on discrete multi-tone and PAPR optimization. The proposed flexible-rate PON can achieve the widest-range rate adjustment from 25Gb/s to 100Gb/s with a granularity of ~ 50Mbit/s under the optical power budget from 36dB to 26dB.
Simultaneous Noise Mitigation of Wavelength-multiplexed Signals by Self-tracking Passive Amplification
Authors: Crockett Benjamin , Cortés Luis Romero , Maram Reza , Azaña José
Published: April 2022

We demonstrate the self-tracking abilities of Talbot-based denoising by simultaneously processing 4 signals in a WDM scheme using a single device, without stabilization or alignment procedures, enabling significant BER and SNR improvements in all channels.
Liquid Waveguide Cladding for 2D Beam Steering of An Optical Phased Array at a Single Wavelength
Authors: Li Binghui , Sun Caiming , Zhang Aidong
Published: April 2022

We present the replacing of waveguide liquid claddings to implement 2D beam steering of an optical phased array. A maximum steering angle of >10° was achieved with RI from 1.0 to 1.63 at 940 nm.
A rotated QAM-based probabilistically shaped OFDM with ANN scheme for W-band RoF system
Authors: He Jing , Zhou Zhihua , He Jing
Published: April 2022

In the paper, a rotated QAM-based probabilistically-shaped (PS) OFDM with artificial neural network (ANN) scheme is proposed in W-band RoF system. After 50-km SSMF and 1-m wireless transmission, the experimental results show that its ROP sensitivity outperforms PS-OFDM.
Optical Performance Monitoring for Commercial Transceivers using Constellations: Practical Considerations
Authors: Lippiatt Daniel , Cho Hyung Joon , Kaylor Alex , Thomas Varghese A. , Searcy Steven , Richter Thomas , Tibuleac Sorin , Ralph Stephen E.
Published: April 2022

We demonstrate an ML-based optical performance monitoring technique using constellation diagrams which accurately assess OSNR and generalized OSNR in a realistic deployment environment with product constraints. Limitations of OSNR estimation in commercial deployments are discussed.
O-Band Fiber-to-Chip Edge Coupler for High NA Fiber Based on a CMOS Compatible SOI Platform
Authors: Teng Min , Wu Hao , Li Chenlei , Wang Feng , Du Yinchao , Zheng Xuezhe
Published: April 2022

A SiN edge coupler is experimentally demonstrated with a < 1.9 dB/facet loss over the whole O band for a 4μm MFD fiber. The power is further transformed into Si waveguide using a SiN-to-Si transition.
Microscale mode-selective photonic lantern multiplexer compatible with 3D nanoprinting technology
Authors: Dana Yoav , Marom Dan M.
Published: April 2022

We design mode-selective photonic lantern multiplexer using 3D waveguides made of photopolymer core and air cladding. Although the waveguides exhibit high index contrast, low loss (0.14dB), MDL (-0.06db), and mode group crosstalk (-21.2dB) are obtained.
Federated Learning Approach for Lifetime Prediction of Semiconductor Lasers
Authors: Abdelli Khouloud , Grießer Helmut , Pachnicke Stephan
Published: April 2022

A new privacy-preserving federated learning framework allowing laser manufacturers to collaboratively build a robust ML-based laser lifetime prediction model, is proposed. It achieves a mean absolute error of 0.1 years and a significant performance improvement.
Demonstration of High-Throughput Intra-Datacenter Switches Using Interleaved AWGs for Nyquist WDM
Authors: Kuno Takuma , Mitsuya Takumi , Mori Yojiro , Hasegawa Hiroshi , Sato Ken-ichi
Published: April 2022

We demonstrate a high-throughput optical circuit switch for intra-datacenter networks. DP-32QAM and Nyquist WDM are used to enhance the spectral efficiency of the switch. Experiments show the total switch throughput of 8.512 Pbps.
Energy efficient OEO conversion and its applications to photonic integrated systems
Authors: Shinya Akihiko , Nozaki Kengo , Kita Shota , Ishihara Tohru , Matsuo Shinji , Notomi Masaya
Published: April 2022

We describe nanophotonics-based opto-electric devices and their femtofarad integration. The combination of these devices and optical interference units has a potential to provide energy-efficient and ultra-low latency optical information processing.
Enhanced Stability of Resonant Racetrack Plasmonic-Organic-Hybrid Modulators
Authors: Eppenberger Marco , Bitachon Bertold Ian , Messner Andreas , Heni Wolfgang , Moor David , Kulmer Laurenz , Habegger Patrick , Destraz Marcel , De Leo Eva , Meier Norbert , Medico Nino Del , Hoessbacher Claudia , Baeuerle Benedikt , Leuthold Juerg
Published: April 2022

A high-speed and compact plasmonic organic racetrack modulator is shown to be orders of magnitude more robust against operating condition changes compared to resonant modulators based on the plasma dispersion effect while maintaining thermal tunability. Stable operation at 80°C is shown with no degradation.
Highlights of 10-years of Research in a Japanese Si Photonics Project
Authors: Arakawa Yasuhiko , Nakamura Takahiro , Kurata Kazuhiko
Published: April 2022

Aiming at the convergence of photonics and electronics technologies, a large-scale national project on silicon photonics was launched in Japan in 2012. In this presentation, the activities in this national project are presented, focusing on the development of silicon photonics circuits and the realization of an optical I/O core, a 5 mm square silicon-based chip with integrated quantum dot lasers. The implementation of this project has paved the way towards ultra-small transceiver chips for on-board optics (OBO) and co-packaged optics (CPO) technologies.
Dynamic Quantum Network: from Quantum Data Centre to Quantum Cloud Computing
Authors: Nejabati Reza , Wang Rui , Simeonidou Dimitra
Published: April 2022

This paper presents challenges and solutions for creating a dynamic entangled quantum network as the main technology enabler for realizing scalable quantum data centres and future quantum cloud computing infrastructure serving a large number of users.
A Dynamic Multi-Protocol Entanglement Distribution Quantum Network
Authors: Wang R. , Alia O. , Clark M. J. , Bahrani S. , Joshi S. K. , Aktas D. , Kanellos G. T. , Peranić M. , Lončarić M. , Stipčević M. , Rarity J. , Nejabati R. , Simeonidou D.
Published: April 2022

We implement a six-user quantum communication network utilising a quantum-enabled ROADM for flexible and on-demand allocation of entanglement across different users. This allows dynamic networking for multiple quantum protocols.
Autonomous and Generalized Soft Failure Detection based on Digital Residual Spectrum in Optical Networks
Authors: Sun Kaixuan , Yu Zhenming , Huang Hongyu , Zhang Jing , Xu Kun
Published: April 2022

We propose and experimentally demonstrate an autonomous and generalized soft failure detection scheme using Auto-Encoder and digital residual spectrum. False negative rate (FNR) for five transmission systems is below 3.87% with the same trained model.
Intelligent Burst Receiving Control in 100G Coherent PON with 4×25G TFDM Upstream Transmission
Authors: Xu Mu , Jia Zhensheng , Zhang Haipeng , Campos Luis Alberto , Knittle Curtis
Published: April 2022

We proposed novel burst-receiving technologies, including power rebalancing and sub-channel recognition, in a 100G coherent PON with 4×25G-TFDM sub-channels. Superior burst-receiver performance is achieved over 80-km fiber with -39.2-dBm sensitivity and 2.4-GHz sub-channel frequency-detuning tolerance.
Low-cost Asymmetric Point-to-multipoint Coherent Architecture for Access Networks
Authors: Fan Yunyun , Fu Mengfan , Liu Xiaomin , Xu Yicheng , Yi Lilin , Hu Weisheng , Zhuge Qunbi
Published: April 2022

We propose a low-cost asymmetric point-to-multipoint coherent architecture for access networks. In this architecture, the coherent transmitters for the unlink are greatly simplified and the tolerance to laser frequency offset is significantly improved.
Mitigating Nonlinear Interference by Limiting Energy Variations in Sphere Shaping
Authors: Gültekin Yunus Can , Alvarado Alex , Vassilieva Olga , Kim Inwoong , Palacharla Paparao , Okonkwo Chigo M. , Willems Frans M. J.
Published: April 2022

Band-trellis enumerative sphere shaping is proposed to decrease the energy variations in channel input sequences. Against sphere shaping, 0.74 dB SNR gain and up to 9% increase in data rates are demonstrated for single-span systems.
Integrated 1.58 cm range Resolution Radar and 60 Gbit/s 50m Wireless Communication Based-on Photonics technology in Terahertz Band
Authors: Wang Yanyi , Li Weiping , Ding Junjie , Zhang Jiao , Wang Feng , Wang Chen , Zhao Li , Liu Cuiwei , Zhou Wen , Yu Jianguo , Lei Mingzheng , Zhu Min , Zhao Feng , Yu Jianjun
Published: April 2022

A novel photonics-based THz band high-resolution radar sensing, and a long-distance communication system integrated architecture was proposed and experimentally demonstrated. To the best of our knowledge, 60 Gbit/s THz signals at 340 GHz band were delivered over 50 m wireless distance with an integrated 1.58 cm resolution radar for the first time.
Real-Time Transmission over 2x55 km All 7-Core Coupled-Core Multi-Core Fiber Link
Authors: Mazur Mikael , Dallachiesa Lauren , Fontaine Nicolas K. , Ryf Roland , Börjeson Erik , Chen Haoshuo , Sakuma Hirotaka , Ohtsuka Takafumi , Hayashi Tetsuya , Hasegawa Takemi , Tazawa Hidehisa , Neilson David T. , Larsson-Edefors Per
Published: April 2022

We demonstrate the first transmission experiment using 7-core coupled-core fiber with in-line coupled-core multi-core amplifiers and real-time DSP. The real-time DSP is implemented using a single FPGA that performs MIMO processing across all 7 cores.
DAS over 1,007-km Hybrid Link with 10-Tb/s DP-16QAM Co-propagation using Frequency-Diverse Chirped Pulses
Authors: Ip Ezra , Huang Yue-Kai , Huang Ming-Fang , Yaman Fatih , Wellbrock Glenn , Xia Tiejun , Wang Ting , Asahi Koji , Aono Yoshiaki
Published: April 2022

We report the first distributed acoustic sensing (DAS) results over >1,000 km on a field-lab hybrid link using chirped-pulses with correlation detection and 20× frequency-diversity, achieving a sensitivity of

100
p
∈
/

Hz

at 20-meters spatial resolution.
First Demonstration of PS-QAM based Flexible Coherent PON in Burst-Mode with 300G Peak-Rate and Record Dynamic-Range and Net-Rate Product up to 7,104 dB·Gbps
Authors: Xing Sizhe , Li Guoqiang , Chen Jiang , Zhang Junwen , Chi Nan , He Zhixue , Yu Shaohua
Published: April 2022

We experimentally demonstrate rate-flexible coherent TDM-PON in burst-mode with dynamic range of >35-dB and power-budget of 39-dB based on probabilistic-shaping QAM modulation, achieving 300G peak-rate and a record dynamic-range and net-rate product up to 7,104 dB·Gbps.
Optical Amplification-Free 200 Gbaud On-Off Keying Link for Intra-Data Center Communications
Authors: Ozolins Oskars , Salgals Toms , Louchet Hadrien , Joharifar Mahdieh , Schatz Richard , Gruen Markus , Dippon Thomas , Krüger Benjamin , Che Di , Matsui Yasuhiro , Fan Yuchuan , Udalcovs Aleksejs , Zhang Lu , Yu Xianbin , Spolitis Sandis , Bobrovs Vjaceslavs , Popov Sergei , Pang Xiaodan
Published: April 2022

We demonstrate a 200 Gbaud OOK link without any optical amplification using C-band externally modulated laser with 3.3 dBm of modulated output power. We achieve below 6.25% overhead HD-FEC threshold after 200 meters of SMF.
Complex lasing based decentralized key distribution controlled by photothermal effect
Authors: Zhu Hong Yang , Zhang Jin Chuan , Zhang Wei Li
Published: April 2022

A logical-state fiber microcavity laser is proposed with random output spectrum controlled by photothermal effect. Combining the random and bistable features, decentralized key distribution is developed with functions of key generation/encryption at individual end-nodes.
Telecom-band Hyperentangled Photon Pairs from a Fiber-based Source
Authors: Chen Changjia , Xu Calvin , Riazi Arash , Zhu Eric Y. , Greenwood Alexander , Gladyshev Alexey V. , Kazansky Peter G. , Kirby Brian T. , Qian Li
Published: April 2022

We experimentally demonstrate the generation of telecom-band biphotons hyperentangled in both the polarization and frequency DoFs using a periodically-poled silica fiber and observe entanglement concurrences above 0.95 for both DOFs.
Caching with light: First demonstration of an Optical Cache Memory Prototype
Authors: Pappas Christos , Moschos Theodoros , Alexoudi Theoni , Vagionas Christos , Pleros Nikos
Published: April 2022

An optical cache memory prototype is experimentally presented for the first time featuring 8-bit storage capability. It employs a 4x2 optical RAM bank relying on 5Gb/s monolithic InP Flip-Flops, an optical Tag comparator and all-passive Row/Column Decoding circuits.
Real Time 6.4 Tbps (8×800G) SHCD Transmission through 1+8 Multicore Fiber for Co-Packaged Optical-IO Switch Applications
Authors: Gui Tao , Du Haoze , Zheng Keshuang , Cao Juntao , Yuan Shuai , Yang Chen , Tang Ming , Li Liangchuan
Published: April 2022

We successfully demonstrated a real time 6.4Tbps self-homodyne coherent transmissions without polarization tracking through specially designed 10km multi-core fibers with 1 polarization maintaining core and 8 normal single-mode cores, using the wavelength unlocked DFB laser.
Compact adiabatic silicon photonic filters with arbitrary and ultra-broadband response
Authors: Gorgulu Kazim , Magden Emir Salih
Published: April 2022

We present the design and experimental demonstration of compact silicon photonic filters through optimized fast adiabatic waveguides with arbitrarily wide bandwidths. Our devices achieve passbands up to 96.6 nm with flat-top and low-loss operation.
Scalable On-Chip Single-Photon Cross-Bar Switching
Authors: Wang Xiaoxi , Mookherjea Shayan
Published: April 2022

Single-photon measurements of an electro-optic silicon-photonic add-drop microresonator demonstrate entanglement-preserving voltage-driven switching with fast 10%-90% transition times [<50 ps], low-loss transmission [94% (90%) bar (cross)-state] and high quantum two-photon interference visibility [~99%] at 1550 nm.
Up to 600 Gbit/s data transmission over 100 m of single multi-mode fiber using 4×λ 850-940 nm VCSELs
Authors: Ledentsov N. , Kottke C. , Chorchos Ł. , Shchukin V.A. , Makarov O. Yu. , Sanayeh M. Bou , Kalosha V.P. , Jungnickel V. , Freund R. , Turkiewicz J. P. , Ledentsov N. N.
Published: April 2022

We demonstrate parallel high speed data transmission over single multimode fiber using VCSELs operating in the SWDM wavelength range (850 nm – 940 nm). Total demonstrated throughput of such system reaches 500 Gbit/s with 4-PAM modulation and 600 Gbit/s with DMT modulation.
Highly Reliable 106 Gb/s PAM-4 850 nm Multi-Mode VCSEL for 800G Ethernet Applications
Authors: Hoser Mirko , Kaiser Wolfgang , Quandt David , Bueno Julián , Saintenoy Stéphanie , Eitel Sven
Published: April 2022

This paper reviews II-VI’s 106 Gb/s PAM-4 multi-mode VCSELs for commercial 800G transceiver applications. The VCSEL provides 27 GHz bandwidth, RIN of -150 dB/Hz, 0.25 nm spectral width and shows an excellent reliability.
Demonstration of a hybrid III-V/Si multi-wavelength DFB laser for high-bandwidth density I/O applications
Authors: Kumar Ranjeet , Huang Duanni , Sakib Meer , Su Guan-Lin , Ma Chaoxuan , Wu Xinru , Rong Haisheng
Published: April 2022

We demonstrate a 4-wavelength DFB laser with >8dBm output power per wavelength, <±0.5dB power variations, 140GHz wavelength spacing, and <-140dB/Hz RIN. For data transmission at 64 Gb/s, we obtained comparable performance to a benchtop laser.
High-Capacity 400Gb/s Real-Time Transmission over SCUBA110 Fibers for DCI/Metro/Long-haul Networks
Authors: Zhu B. , Geisler T. , Borel P. I. , Jensen R. , Stegmaier M. , Palsdottir B. , Peckham D. W. , Lingle R. , Yan M. F. , DiGiovanni D. J.
Published: April 2022

We demonstrate real-time transmission 23.2 Tb/s (58x400Gb/s) DWDM signals over 1507km of G.654E SCUBA110 fiber using 400ZR+ pluggable coherent transceiver modules, additionally, 26Tb/s (65x400Gb/s) is transmitted over 200km SCUBA110 fiber link using 400ZR pluggable modules.
White Rabbit Protocol Enhanced TDM-PON with Nanoseconds Clock and Data Recovery and Picoseconds Time Synchronization Accuracy
Authors: Zhao Yisong , Xue Xuwei , Guo Bingli , Zhao Zuoqing , Guo Yuanzhi , Huang Shanguo
Published: April 2022

White Rabbit protocol enhanced TDM-PON is proposed first time for fast clock and data recovery (CDR) and accurate time synchronization. Experimental results validate 38ns CDR time without cost-high burst-mode receiver and 390ps average time skew.
Narrow Linewidth Lasers for Low-Energy Coherent Communications
Authors: Brodnik Grant M. , Harrington Mark W. , Dallyn John H. , Bose Debapam , Zhang Wei , Stern Liron , Morton Paul A. , Behunin Ryan A. , Papp Scott B. , Blumenthal Daniel J.
Published: April 2022

We present chip-scale lasers with ~1Hz fundamental linewidths, ~30Hz integral linewidths, and stability better than 2x10-13 (50ms) enabling energy-efficient, ultra-low residual phase error carrier recovery for DSP-free, high-capacity coherent communications in tomorrow’s data center interconnects.
Coherent DSP and System Integration Technologies for 800G
Authors: Wang Shih-Cheng , Xu Hai , Castrillon Alejandro , Konrad Marcos Macchi , Taddei Alfredo , Morero Damian , Chien Hungchang , Agazzi Oscar
Published: April 2022

This paper discusses challenges in achieving low-power coherent pluggables for 800G, and innovations required to overcome those challenges. Recent progress in the areas of system integration and low-power DSP design and implementation will be surveyed.
On the Performance of Digital Resolution Enhancement and Waterfilling in Digital Subcarrier Multiplexing Systems with Low-Resolution DACs
Authors: Nguyen Trung-Hien , Nasser Youssef , Zhao Yu , Mumtaz Sami , Lorences-Riesgo Abel , Martins Celestino S. , Charlet Gabriel , Dris Stefanos
Published: April 2022

Digital resolution enhancement is experimentally demonstrated for 800G 107 Gbaud 8-carrier PCS-256QAM employing waterfilling. 1.4 dB SNR and 1 dB Q2-factor gains are obtained with a 4-bit DAC at 1.125 samples/symbol.
Complementary Polarization-diversity Self-Coherent Homodyne Receiver with Rapid Polarization Tracking for Remote LO
Authors: Ji Honglin , Li Jingchi , Li Xingfeng , Dong Shuangyu , Xu Zhaopeng , Su Yikai , Shieh William
Published: April 2022

We propose a complementary polarization-diversity coherent receiver (C-PDCR) based on complementary polarization detection. The proposed C-PDCR features rapid polarization tracking for remote LO using electronic DSP. The robustness is verified by a 1.08-Tb/s dual-polarization PCS-256QAM signal with up to 314-Krad/s polarization tracking speed.
SDM-TDM Reception Based on MIMO Carrier Phase Recovery Technique for Scalable SDM Transmission
Authors: Shibahara Kohki , Hoshi Megumi , Miyamoto Yutaka
Published: April 2022

We propose MIMO carrier phase recovery (CPR) scheme and its application into SDM-TDM reception. The use of MIMO-CPR with SDM-TDM reception simplifies local oscillator input architecture, hence enabling three-mode-multiplexed 4600-km transmission with single coherent receiver.
Weak Carrier Assisted Phase Retrieval Receiver
Authors: Wu Qi , Zhu Yixiao , Hu Weisheng
Published: April 2022

We propose a weak carrier-assisted phase-retrieval receiver to obtain initial phase for modified Gerchberg-Saxton algorithm with fast convergence to realize hardware-efficient, computationally-efficient, and pilot-symbol-free optical field recovery, and compare it with other phase retrieval schemes.
High-speed White Light Visible Light Communication (VLC) Based on Semipolar (20-21) Blue micro-Light Emitting Diode (μ-LED)
Authors: Chang Yun-Han , Liou Fang-Jyun , Huang Yu-Ming , Gunawan Wahyu Hendra , Chow Chi-Wai , Kuo Hao-Chung , Liu Yang , Yeh Chien-Hung
Published: April 2022

We demonstrate a record 2.473-Gbit/s white-light visible-light-communication (VLC) using semipolar (20-21) blue InGaN/GaN μ-LED with yellow-phosphor. The measured 3-dB-bandwidth of blue and white lights are 1042.5 MHz and 772.4 MHz respectively.
205-Gbit/s Visible Light Communication Utilizing 4×4 Si-substrate μLED-based Photodetector Array
Authors: Niu Wenqing , Shi Jianyang , Xu Zengyi , Li Dong , Xiao Weihuang , Wang Guangxu , Zhang Jianli , He Zhixue , Shen Chao , Chi Nan
Published: April 2022

We demonstrate an 8.205-Gbit/s VLC transmission over 0.5-m free-space link based on 4×4 Si-substrate InGaN/GaN MQW micro-LED-based photodetector array. Adaptive bit-power-loading scheme is applied to maximize the spectral efficiency for the OFDM VLC system.
Integrated Ultra-Narrow Linewidth Stabilized SBS Lasers
Authors: Blumenthal Daniel J.
Published: April 2022

Frequency-stabilized, spectrally-pure lasers are key to precision scientific applications including quantum, atomic clocks, and metrology. We discuss progress towards integrating aspects of these systems to the chip-scale using Si3N4 Brillouin lasers and ultra-high Q resonators.
Hybrid InP-SiN microring-resonator based tunable laser with high output power and narrow linewidth for high capacity coherent systems
Authors: Calò Cosimo , Benyahya Kaoutar , Mardoyan Haik , Charbonnier Philippe , Sacchetto Davide , Zervas Michael , Mekhazni Karim , Lanteri Delphine , Gariah Harry , Fortin Catherine , Vaissière Nicolas , Elias Antoine , Parillaud Olivier , Mallecot Franck , Decobert Jean , Pommereau Frederic , Renaudier Jeremie
Published: April 2022

A hybrid InP/SiN tunable laser based on microring resonators exhibiting 40mW fiber-coupled output power and 5kHz linewidth is demonstrated. The device shows performance comparable with commercial external cavity lasers in 90GBd 64QAM coherent system.
A hybrid-integrated external cavity laser with ultra-wide wavelength tuning range and high side-mode suppression
Authors: Guo Yuyao , Li Xinhang , Xu Weihan , Liu Chuxin , Jin Minhui , Lu Liangjun , Xie Jingya , Stroganov Anton , Chen Jianping , Zhou Linjie
Published: April 2022

We present a III-V/Si3N4 hybrid-integrated tunable laser. The laser shows a record of ~170-nm tuning range with a side mode suppression ratio above 64 dB and an intrinsic linewidth below 2.8 kHz.
Nano-iTLA based on Multi-Channel Interference Widely Tunable Laser
Authors: Chen Zifeng , Wang Kuankuan , Chen Quanan , Jiang Chun , Lu Qiaoyin , Guo Weihua
Published: April 2022

A nano-iTLA based on multi-channel interference widely tunable lasers was demonstrated for the first time. The module exhibits a tuning range > 48 nm, SMSR > 45 dB and Lorentzian linewidth < 100 kHz.
Investigation of Wideband Distributed Raman Amplification in a Few-Mode Fiber Link
Authors: Rademacher Georg , Luis Ruben S. , Puttnam Benjamin J. , Zacarias Juan Carlos Alvarado , Amezcua-Correa Rodrigo , Aikawa Kazuhiko , Awaji Yoshinari , Furukawa Hideaki
Published: April 2022

We experimentally investigate distributed Raman amplification in a graded-index three-mode fiber over more than 80 nm signal bandwidth. We measured gain of up to 6 dB with 0.3 dB mode-dependence when pumping only the highest-order modes.
Generation of Coherent Multi-Wavelength Lights with Hundreds GHz Frequency Spacing from an Injected Fiber Laser with an Intracavity Tunable Micro-Ring Resonator
Authors: Chen Yen-Chu , Hsu Yi-Jang , Lai Yinchieh
Published: April 2022

Coherent multi-wavelength lights with 133 and 266 GHz frequency spacing are successfully generated from a new fiber laser scheme. The phase-locking characteristics are examined through the auto-correlation contrast as well as the down-converted beating linewidth.
A Field Trial of 50G TDM-PON Based 5G Small Cell Backhaul
Authors: Wang Ning , Li Junwei , Liu Dekun , Wu Yu , Zhu Jinglong , Liu Da , Bai Lirong , Zhang Dechao , Li Han , Li Borui
Published: April 2022

We demonstrate a field trial of 50G TDM-PON based small cell backhaul. Multiple user equipment are connected to two 5G base stations simultaneously. The maximum download speed of each user equipment reaches nearly 1000 Mbps.
Stimulated Raman Scattering and Power-over-Fiber Property of Multi-core Fiber
Authors: Kurokawa Kenji , Iida Hiroyuki , Hanzawa Nobutomo , Oguma Takaya , Yamashita Yoko , Mori Takayoshi , Matsui Takashi , Nakajima Kazuhide
Published: April 2022

We show that 4-core multi-core fiber provides 2.6 times higher stimulated Raman scattering threshold than single-core fiber, and potentially enables over 5-km long signal transmission with self-power feeding of more than 600 mW.
Demonstration and Trial of a new CWDM and Circulator integrated semi-active system for 5G fronthual
Authors: Zhang Dezhi , Du Zhe , Cheng Ming , Jiang Ming , Liu XinFeng , Li Xin
Published: April 2022

We demonstrate a new CWDM and Circulator integrated semi-active system for 5G fronthaul, and key test data. The system can support 6-channel 25 Gbit/s fronthaul channel capability, and support protection switching function, real-time signal power of multiple working wavelengths Online detection function, and reflected interference signal power detection function.
High-speed time series prediction and classification on an all-optical neural network
Authors: Jha Aashu , Huang Chaoran , Peng Hsuan-Tung , Zhang Weipeng , Shastri Bhavin , Prucnal Paul R.
Published: April 2022

We experimentally demonstrate high-speed time series prediction and binary classification tasks using an all-optical integrated SiN-based nonlinear photonic node in a time-delay based reservoir architecture.
IOWN for digital twin enabled societies
Authors: Kawashima Masahisa
Published: April 2022

Achieving the extreme data volume and velocity requirements of digital twin applications energy-efficiently is challenging. IOWN will address this challenge by making architectural shifts in computing and networking with the evolution of optical technologies.
Digital Subcarriers: A Universal Technology for Next Generation Optical Networks
Authors: Welch Dave , Napoli Antonio , Bäck Johan , Swenson Norman , Sande Warren , Pedro João , Masoud Fady , Chase Aaron , Fludger Chris , Sun Han , Chiang Ting-Kuang , Mathur Atul , Wu Kuang-Tsan
Published: April 2022

Coherent technology can be operated with independent digital subcarriers to realize point-to-point and point-to-multipoint optical networks. Enabled by configurable software management, it creates a simple, scalable, low-cost solution, compatible across network, vendors, and generations.
New Trend of Open and Disaggregated Optical Networks
Authors: Dou Liang , Chen Sai , Zhang Huan , Cheng Jingchi , Gao Fan , Yan Boyuan , Zhang Shuai , Sun Zhao , Wang Lei , Xie Chongjin
Published: April 2022

Open and disaggregated systems supporting flexgrid operation and ROADM are being introduced to data center interconnect networks. System integration and network automation are effective to further increase the network efficiency in the future.
Monolithically Integrable Optical Single Sideband Transmitters for Inter-datacenter Applications
Authors: Bo Tianwai , Tan Zhongwei , Kim Hoon , Dong Yi
Published: April 2022

We review the recent research activities on monolithically integrable optical single sideband transmitter schemes for inter-datacenter applications, including monolithic integration of laser with modulator, optical injection-locked laser, and dual modulation of laser and electro-absorption modulator.