bluuebunny/crossref_metadata_2025 huggingface dataset:
A highly temperature-insensitive Bi-doped fiber amplifier in the E+S-band with 20 dB flat gain from 1435-1475 nm
Authors: Wang Y. , Halder A. , Richardson D. J. , Sahu J. K.
Published: May 2023

We report a bismuth-doped fiber amplifier operating in the E+S-band providing a 20.5±1dB flat gain with 5.5±2dB NF from 1435-1475nm for -10dBm input signal. The gain coefficient and temperature-dependent-gain coefficient are 0.065dB/mW and -0.005±0.001dB/°C, respectively.
Bandwidth-Dependent Gain Deviation in E+S band Bismuth Doped Fiber Amplifier under Automatic Gain Control
Authors: Wang Lixian , Fung Yiki , Sharma Manish , Botzung Corentin , LaRochelle Sophie , Jiang Zhiping
Published: May 2023

Although bismuth doped fiber amplifier could provide ultra-wideband gain, the gain inhomogeneity might ultimately restrict its applicable bandwidth. This work explores this limitation through experimental measurements of signal dependent gain deformation.
Record Gain of 18-dB for Broadband Single-Model Cr-Doped Crystalline Core Fiber by Small Core Diameter
Authors: Chang Kai-Chieh , Tsai Chia-Ling , Cheng Wei-Chih , Zon  , Liu Chun-Nien , Shih Tien-Tsorng , Huang Sheng-Lung , Tu Charles W. , Cheng Wood-Hi
Published: May 2023

We demonstrate record gain of 18-dB broadband single-mode Cr-doped crystalline core fiber employing small core diameter. The gain-per-unit-length is 90 dB/m, which is higher than currently achieved Er and Bi-doped fibers of 0.6 - 3 dB/m.
Self-compensation of Spectral Hole Burning Effect in Super C-band EDFA
Authors: Wang Lixian , Lan Yang , Sharma Manish , Peng Xiaolei , Jiang Zhiping
Published: May 2023

This work investigates theoretically and experimentally the physical counterpart to the conventional spectral hole burning effect in erbium-doped fiber amplifiers: the inhomogeneous saturable absorption. Using this effect, a cost-effective compensation method is proposed.
X-NEST+: A High Bandwidth and Reconfigurable Optical Interconnects for Distributed Machine Learning and High-Performance Computing
Authors: Gu Huaxi , Yu Xiaoshan , Lu Yunfeng , Zou Hong , Li Shuo
Published: May 2023

We propose X-NEST+, a scalable and high-bandwidth optical interconnects capable of reconfiguring both intra- and inter- cluster topology based on traffic demands. The experiment results indicate up to 8%~36% reduction in completion time for HPC and ML applications compared with Helios and RotorNet.
Jitter Compensation Mechanism for Dynamic Deterministic Networks
Authors: Soudais Guillaume , Graba Tarik , Mathieu Yves , Bigo Sebastien
Published: May 2023

We compensate jitter between any two unsynchronized endpoints by tracking their clocks and re-creating flows by retiming packets. After implementation over FPGA, we achieve ~10ms synchronization setup time with no more than 70ns jitter.
Scalability Assessment of O-band SOA-based Broadcast and Select Switch with 100 Gb/s LWDM Commercial Transceivers
Authors: Rombouts M.P.G. , Calabretta N.
Published: May 2023

Scalability and operation of O-band SOA-based Broadcast & Select switches are experimentally assessed using 100 Gb/s commercial transceivers. Results show error-free operation for a 32-port switch with < 1.8 dB power penalty and 10
−
8 for a 64-port switch.
173.7-Tb/s Triple-Band WDM Transmission using 124-Channel 144-GBaud Signals with SE of 9.33 b/s/Hz
Authors: Hamaoka Fukutaro , Nakamura Masanori , Takahashi Minami , Kobayashi Takayuki , Miyamoto Yutaka , Kisaka Yoshiaki
Published: May 2023

We demonstrate 173.7-Tb/s 101-km transmission in an 18.6-THz bandwidth, achieving a 9.33-b/s/Hz spectral efficiency at 144 GBaud with 124-WDM channels of net bitrates between 1.18 and 1.54 Tb/s/wavelength using entropy and code-rate optimized PCS-64QAM signals.
U-Band Transmission of Real-Time 200-Gb/s Signal Co-Propagating with C+L-Band WDM Signal
Authors: Kato Tomoyuki , Irie Hiroyuki , Muranaka Hidenobu , Tanaka Yu , Akiyama Yuichi , Hoshida Takeshi
Published: May 2023

We propose a U-band transmission added to the C+L-band that can mitigate large loss at long wavelength by inter-channel SRS. The benefit is demonstrated in 80-km SSMF transmission of real-time 200-Gb/s DP-QPSK signal.
Experimental Demonstration of All-Optical 8-Gbit/s Secure Free-Space Chaotic Communications over 8.2-meter Link Based on Unidirectional Injection-Locking Chaos Synchronization
Authors: Zhang Yiqun , Xu Mingfeng , Chen Qiang , Zhou Mengjie , Chen Shuangcheng , Pu Mingbo , Jiang Ning , Qiu Kun , Lavery Martin P. J. , Abbas Hasan T. , Luo Xiangang
Published: May 2023

We first experimentally demonstrate an 8-Gbit/s free-space secure chaotic optical communications link over 8.2 meters in a long corridor with satisfactory BER performance by achieving one-way injection locking chaos synchronization.
MDI-QKD with resource-efficient polarization compensation
Authors: Bedroya Olinka , Li Chenyang , Wang Wenyuan , Hu Jianyong , Lo Hoi-Kwong , Qian Li
Published: May 2023

We implemented MDI-QKD with a novel polarization compensation scheme using discarded bits without reducing the key-sharing cycle or demanding additional resources. Polarization drift was maintained below 0.13 rad over a 40 km unisolated fibre spool for four hours, and the average secret key rate generated was 7.45 ×10
−
6 bits per pulse.
Simple and Fast Polarization Tracking algorithm for Continuous-Variable Quantum Key Distribution System
Authors: Pan Yan , Wang Heng , Shao Yun , Pi Yaodi , Ye Ting , Li Yang , Huang Wei , Xu Bingjie
Published: May 2023

A simple and fast polarization tracking algorithm for pilot tone-assisted CV-QKD system is demonstrated. Experimental results show that the proposed algorithm can track polarization scrambling rate ≥12.57 krad/s with a good performance.
First Demonstration of Erbium-Doped Waveguide Amplifier Enabled Multi-Tb/s (16×1.6T) Coherent Transmission
Authors: Che Di , Grillanda Stefano , Liu Yang , Qiu Zheru , Ji Xinru , Raybon Gregory , Chen Xi , Kim Kwangwoong , Kippenberg Tobias J. , Blanco-Redondo Andrea
Published: May 2023

We demonstrate the first EDWA-enabled Terabit-class coherent optical communication with 1.6-Tb/s net bit rate per channel and 16-channel WDM transmission over 81-km fiber, proving the potential of such on-chip amplification for future coherent applications.
96-THz Single Fibre Amplifier O-band Coherent DWDM Transmission
Authors: Elson Daniel J. , Wakayama Yuta , Mikhailov Vitaly , Luo Jiawei , Yoshikane Noboru , Inniss Daryl , Tsuritani Takehiro
Published: May 2023

We demonstrate C+L-band-class wideband coherent transmission using simple backward-pumped Bismuth-doped fibre amplifiers in O-band. Achievable information rates over 40.9 and 36.8 Tb/s for 45 and 135 km, respectively, were measured including transmission near zero dispersion.
Demonstration of Composable-ML-assisted Autonomous Lightpath Configuration over a Field-deployed SDM Network with 7-Core Fibers
Authors: Gao Hanyu , Chen Xiaoliang , Zheng Wenbang , Chen Yingyu , Xiao Yongguang , Li Zhaohui
Published: May 2023

This paper demonstrates the first field trial of autonomous lightpath configuration over an SDM network using 7-core fibers. With a composable-ML-based configuration algorithm, ∼10-second lightpath provisioning and automated failover are achieved while desirable QoT is secured.
Colorless and Directionless ROADM for Meshed Coupled-Core Multicore Fiber Networks
Authors: Luis Ruben S. , Di Sciullo Giammarco , Rademacher Georg , Puttnam Benjamin , Marotta Andrea , Emmerich Robert , Braig-Christophersen Nicolas , Stolte Ralf , Graziosi Fabio , Mecozzi Antonio , Schubert Colja , Hayashi Tetsuya , Nagashima Takuji , Antonelli Cristian , Furukawa Hideaki
Published: May 2023

We demonstrate the first meshed spatial-super-channel switching SDM network using field-deployed coupled-core multicore fibers with a 3 line-side, colorless, directionless ROADM. We evaluate 19 network scenarios including add&drop, bypass and grooming with 2 Tb/s granularity.
Photonics-assisted 320 GHz THz-band 50 Gbit/s Signal Outdoor Wireless Communication over 850 Meters
Authors: Li Weiping , Yu Jianjun , Zhu Bowen , Zhang Jiao , Zhu Min , Zhao Feng , Xie Tangyao , Wang Kaihui , Wei Yi , Yang Xiongwei , Hua Bingchang , Lei Mingzheng , Cai Yuancheng , Zhou Wen , Yu Jianguo
Published: May 2023

We have experimentally demonstrated, for the first time, a single-channel 50 Gbit/s net rate THz-band transmission over an 850 m wireless link, which also creates the longest wireless distance and largest distance-rate product for a photonic THz-wireless transmission in the world.
2036Tb/s CPRI-Equivalent Rate 1024-QAM DA-RoF Fronthaul with Comb-based WDM and SDM Superchannel
Authors: Zhu Yixiao , Zhang Chenbo , Lin Jingjing , Xu Yicheng , Zhuge Qunbi , Hu Weiwei , Chen Zhangyuan , Hu Weisheng , Xie Xiaopeng
Published: May 2023

We demonstrate 203.6Tb/s CPRI-equivalent-rate 1024-QAM self-homodyne fronthaul using digital-analog radio-over-fiber and comb-based SDM and WDM superchannel from a single laser source. We further present new records from 309.4Tb/s CPRI-equivalent-rate with 256-QAM to 81.6Tb/s with 1048576-QAM.
Innovative Optical and Wireless Network (IOWN) for a Sustainable World
Authors: Aragane Yosuke
Published: May 2023

IOWN is a next generation communication and computing infrastructure which enables both high-performance and low-power consumption for the Sustainable Development Goals by IOWN’s capabilities of an all-photonics network and a data-centric infrastructure.
Uncooled Operation of Si Mach-Zehnder Modulator Integrated with Membrane Semiconductor Optical Amplifiers inside Interferometer Arms
Authors: Aihara Takuma , Hiraki Tatsurou , Fujii Takuro , Takeda Koji , Fukuda Hiroshi , Kakitsuka Takaaki , Tsuchizawa Tai , Matsuo Shinji
Published: May 2023

Membrane SOAs are integrated inside the interferometer arms of Si-MZM, in which the SOAs have on-chip gain of 11-5.3 dB at 25-80℃. In this configuration, SOAs can be used in saturated region suppressing pattern effect.
Ultra-High-Density Microduct Cable with Uncoupled 12-Core Fibers with Standard 250-µm Coating
Authors: Hayashi Tetsuya , Inoue Ayumi , Suzuki Yohei , Norisugi Yuji , Kawamoto Keiji , Takano Junya , Nagashima Takuji , Hirama Takao , Takeda Kentaro , Shimoda Yuki , Sato Fumiaki
Published: May 2023

We developed 12-core fibers suitable for short/medium-reach applications and fabricated a 144-fiber 8-mm-outer-diameter cable using the 12-core fibers, which demonstrates the feasibility of ultra-high-core-count optical cables that can be blown into widely-deployed small-diameter microducts.
Loss performance of field-deployed high-density 1152-channel link constructed with 4-core multicore fiber cable
Authors: Oda Takuya , Kajikawa Shota , Takenaga Katsuhiro , Mukai Okimi , Takeda Daiki , Angra Nikhil , Nasir Usman , Park Jongchul , Zhang Jing , Kopp Victor , Neugroschl Daniel , Ichii Kentaro
Published: May 2023

A cable link with 288 four-core multicore fibers and 288 pairs of fanout devices was deployed in the field and its losses were evaluated. No excess losses were observed from MCF-related components in field installation.
114 Pbit/s∙km Transmission using Three Vendor-Installed 60-km Standard Cladding Multi-Core Fiber Spans with Multiple Fusion Splicing
Authors: Soma Daiki , Beppu Shohei , Miyagawa Yuichi , Yoshikane Noboru , Tsuritani Takehiro
Published: May 2023

63.58 Tbit/s transmission has been experimentally demonstrated over 1,800-km standard cladding trench-assisted profile 4-core fiber (TA-4CF) with multiple connections using installed multivendor TA-4CF optical cables in aerial areas and underground ducts for practical deployment.
Optimal transponder technology for transporting 800 GbE services in IP-over-WDM backbone networks
Authors: Melle Serge , Zami Thierry , Rossi Nicola , Lavigne Bruno
Published: May 2023

This network study compares the benefit of Elastic Optical Transponders enabling 130GBaud WDM channels for transporting 800GE services, showing ability to minimize number of required EOTs per Gb/s in regional and long-haul networks.
On Real-time Optical Subcarrier Management in P2MP Networks with Mixed-strategy Gaming
Authors: Wang Qian , Shakespear-Miles H. , Chen Xiaoliang , Ruiz Marc , Li Zhaohui , Velasco Luis
Published: May 2023

We developed a mixed-strategy gaming approach for distributed and real-time optical subscarrier management in point-to-multipoint networks, achieving traffic loss rates close to those by ILP-based centralized optimization.
Resource Allocation in Optical Networks with Mode Group Division Multiplexing and Light Trail
Authors: Zhang Qiaolun , Yang Yizhou , Gatto Alberto , Tornatore Massimo
Published: May 2023

We quantitatively evaluate resource efficiency enabled by mode-group-division multiplexing (MGDM) and light-trail (LT) in optical metro networks. Combining MGDM with LT reduces 95% of MIMO complexity of Full-MIMO with only 11% additional spectrum occupation.
Silicon-Photonic Integrated Circuits with Enhanced Optical Functionality for Data-Center Applications
Authors: Doerr Christopher
Published: May 2023

Silicon photonics adds optical functionality with minimal impact on cost and yield, having become the platform of choice for coherent receivers. We discuss adding optical functionality for direct-detection, including optical equalization and polarization demultiplexing.
Polarization Insensitive Photonic Integrated 1x4 WDM Wavelength Selective Switch for Optical Networks
Authors: Zali Aref Rasoulzadeh , Stabile Ripalta , Calabretta Nicola
Published: May 2023

We experimentally demonstrate a 1x4 WDM polarization-insensitive wavelength selective switch based on bulk SOAs co-integrated with AWGs. Results show a net gain, broadband, and error-free operation with 0.6 dB power penalty up to 25Gbps NRZ-OOK.
Fully integrated dual-polarization silicon photonic transceiver with automated polarization control
Authors: Wu Xinru , Huang Duanni , Kim Taehwan , Kumar Ranjeet , Su Guan-Lin , Ma Chaoxuan , Liu Songtao , Balamurugan Ganesh , Rong Haisheng
Published: May 2023

We demonstrate a dual-polarization, single-wavelength transceiver with BER below soft-decision FEC (<2.0e-2) at 320Gb/s (PAM-4) aggregate rate. The silicon photonic chip includes integrated laser, ring modulators, Si/Ge detectors, and polarization demux with automatic polarization control.
Advancements in heterogeneously integrated silicon photonics for IMDD and coherent data transmission
Authors: Akulova Yuliya , Jones Richard , Nguyen Kimchau , Venables Ranju , Doussiere Pierre , Liu Ansheng , Gilardi Giovanni , Huang Mengyuan , Patel David , Yu Haijiang , Fathololoumi Saeed , Zhu Daniel , Mahalingam Hari , Su Tiehui , Seddighian Pegah , Malouin Christian , Lin Wenhua , Wang Ye , Al-hemyari Kadhair , Snow Eric
Published: May 2023

Explosive growth of datacenter traffic drives rapid scaling of optical interconnects architectures and technologies. We summarize the advancements in Intel’s heterogeneously integrated silicon photonics manufacturing platform enabling throughput scaling for IMDD and high-efficiency coherent links.
CTC Experiences on Building Computing Power Network
Authors: Zhou Gefan
Published: May 2023

For the optimum leveraging of distributed computing and network resources in the network for various services, we proposed an advanced architecture of Computing Power Network (CPN) with the development of CPN gateway and transaction platform.
Experimental Demonstration of ML-Based DWDM System Margin Estimation
Authors: Müller Jasper , Slyne Frank , Kaeval Kaida , Troia Sebastian , Fehenberger Tobias , Elbers Jörg-Peter , Kilper Daniel C. , Ruffini Marco , Mas-Machuca Carmen
Published: May 2023

SNR margins between partially and fully loaded DWDM systems are estimated without detailed knowledge of the network. The ML model, trained on simulation data, achieves accurate predictions on experimental data with an RMSE of 0.16 dB.
Explainable Machine Learning-enabled Just-enough Margin Configurations in Dynamic S+C+L-band Optical Networks
Authors: Yang Zeyuan , Gu Rentao , Ji Yuefeng
Published: May 2023

We configure an explainable machine learning-enabled just-enough margin for each lightpath in dynamic S+C+L-band optical networks. Explainable decisions improve blocking ratio and spectral efficiency performances by 35.9% and 17.2% compared with the benchmarks.
Deep Neural Network-enabled Fast and Large-Scale QoT Estimation for Dynamic C+L-Band Mesh Networks
Authors: Zhang Yao , Song Yuchen , Shi Yan , Li Jin , Zhang Chuanbiao , Tang Yu , Zhang Min , Wang Danshi
Published: May 2023

A fast and accurate QoT estimation scheme using deep neural network is proposed for dynamic C+L-band large-scale mesh networks. The calculation time is decreased dramatically and it is applied to measure the fiber broken case.
Longitudinal Power Monitoring over a deployed 10,000-km Link for Submarine Systems
Authors: May Alix , Boitier Fabien , Meseguer Alexis Carbo , Esparza Juan Uriel , Plantady Philippe , Calsat Alain , Layec Patricia
Published: May 2023

We demonstrate the power profile estimation over a deployed 10,000-km submarine link using digital processing at the receiver. We experimentally show that we estimate span lengths with 0.49km uncertainty and locate multiple power losses.
Real-time 33.6 Tb/s (42 × 800 Gb/s) Unrepeatered Transmission over 302 km Using ROPA System
Authors: Wu JianJun , Yu Jiekui , Liu Jiasheng , Hu Qianggao , Duan Mingxiong , Wang Wenzhong , Huang Chao , Long Han , Sun Shujuan , Tan Man , Huang Liyan , Xu Jian
Published: May 2023

This paper demonstrates a record unrepeatered transmission with the capacity of 33.6 Tb/s (42 × 800 Gb/s) over 302.7 km (47.52 dB) with a single fiber configuration, using forward Raman pump, backward ROPA, and ultra-low loss & large effective area fiber.
Analysing the Effect of Quantum Network Interconnect on the Performance of Distributed Quantum Computing
Authors: Bahrani Sima , Wang Rui , Oliveira Romerson , Nejabati Reza , Simeonidou Dimitra
Published: May 2023

We investigate how a dynamically reconfigurable network supports short-range distributed quantum computing in a data center scenario by analysing the penalties and benefits of adopting such architecture in the NetSquid platform utilising two use cases.
14 1Tb/s CPRI-equivalent Rate 1024-QAM Transmission via Combs-cloned Self-homodyne WDM Digital-Analog Radio-over-Fiber System
Authors: Zhang Chenbo , Zhu Yixiao , He Bibo , Liu Rongwei , Xu Yicheng , Zhuge Qunbi , Hu Weiwei , Hu Weisheng , Chen Zhangyuan , Xie Xiaopeng
Published: May 2023

We leverage cutting-edge photonic approaches to demonstrate a clone-combs-based self-homodyne WDM digital-analog RoF system for mobile fronthaul. We achieve a 240 GHz (=12λ×20 GHz) aggregated bandwidth with an unprecedented 14.1Tb/s CPRI-equivalent data rate supporting the 1024-QAM signal.
Enhancing NOMA performance in uplink MMW-RoF mobile fronthaul systems by using index modulation
Authors: Tsai Shen-Chen , Yan Jhih-Heng , Feng Kai-Ming
Published: May 2023

A novel OFDM-based index modulation (IM) assisted multi-users NOMA wireless uplink system is demonstrated in MMW-RoF mobile fronthaul. With IM, the proposed scheme achieves higher flexibility on spectral efficiency and power ratio than conventional NOMA.
Energy Saving of Optical Access Systems
Authors: Zhang Dezhi , Du Zhe
Published: May 2023

This work reviews the standardization work of optical access networks in the field of energy saving, and introduces the development and application of energy-saving technologies for optical access networks.
Integrated Microlens Coupler for Photonic Integrated Circuits
Authors: Luo Jianheng , Henriksson Johannes , Kim Myung-Ki , Klawson Daniel , Fan Chun-Yuan , Wu Ming
Published: May 2023

We design and experimentally demonstrate a new silicon photonic fiber coupling method using integrated microlens couplers. Efficient and broadband coupling to a single mode fiber with a best coupling loss of 0.9 dB is achieved.
On-Chip Universal Linear Optics using a 4x4 Silicon Photonic Coherent Crossbar
Authors: Giamougiannis George , Moralis-Pegios Miltiadis , Tsakyridis Apostolos , Bamiedakis Nikos , Lazovsky David , Pleros Nikos
Published: May 2023

We demonstrate the first on-chip and fidelity-restorable universal linear optical circuit that relies on a novel 4×4 silicon photonic coherent crossbar architecture. Its experimental characterization yields a fidelity of 99.93±0.06%, calculated over 10,000 arbitrary matrices.
Advances in Ultra-Wideband LiNbO3 Thin-Film Modulators
Authors: Xu Mengyue , Cai Xinlun
Published: May 2023

We review recent advances and design considerations for thin-film lithium niobate (TFLN) modulators with ultra-wide bandwidth and CMOS-compatible voltage, and we discuss how to approach the limits of the electro-optic bandwidth of the TFLN-based modulators.
200 Gbit/s Barium Titanate Modulator Using Weakly Guided Plasmonic Modes
Authors: Chelladurai Daniel , Kohli Manuel , Bitachon Bertold Ian , Kulmer Laurenz , Blatter Tobias , Moor David , Winiger Joel , Messner Andreas , Convertino Clarissa , Eltes Felix , Fedoryshyn Yuriy , Leuthold Juerg
Published: May 2023

A plasmonic Mach-Zehnder modulator based on thin-film barium titanate is introduced demonstrating line rates up to 200 Gbit/s. The structure enables low insertion loss and high optical power stability without a DC bias during operation.
An Active Visible-Light Integrated Photonics Platform on 200-mm Si
Authors: Sacher Wesley D. , Lin Yiding , Chen Hong , Azadeh Saeed S. , Yong Zheng , Luo Xianshu , Chua Hongyao , Mak Jason C. C. , Govdeli Alperen , Sharma Ankita , Mikkelsen Jared C. , Mu Xin , Stalmashonak Andrei , Lo Guo-Qiang , Poon Joyce K. S.
Published: May 2023

We present a foundry-fabricated monolithically integrated photonics platform for the visible spectrum (λ=445–640nm) with two layers of silicon nitride waveguides, silicon photodiodes, efficient undercut thermo-optic phase shifters, in situ trimming, and electro-thermal MEMS devices.
Heterogeneously Integrated Near-Infrared DFB Laser on Tantalum Pentoxide
Authors: Dorche Ali Eshaghian , Nader Nima , Stanton Eric J. , Nam Sae Woo , Mirin Richard P.
Published: May 2023

We present a diode laser heterogeneously integrated with tantalum pentoxide waveguides on a silicon substrate emitting 5 mW continuous-wave power per facet at 1020 nm wavelength with a 14 mA threshold and a 22 dB side-mode-suppression ratio.
End-to-End Inter-domain Transport Network Slice Management Using DLT-enabled Cloud-based SDN Controllers
Authors: Vilalta R. , Alemany P. , Gifre Ll. , Martínez R. , Casellas R. , Muñoz R.
Published: May 2023

This paper discusses the advantages and challenges of multiple architectures that consider the negotiation of inter-domain transport network slices using blockchain technologies. To this end, we presents results obtained using cloud-native ETSI TeraFlowSDN controller.
DRL for VNF placement in Inter-Data Center Elastic Optical Networks
Authors: Hernández-Chulde C. , Casellas R. , Martínez R. , Vilalta R. , Muñoz R.
Published: May 2023

A novel DRL solution for service provisioning over a cloud/EON stratum is presented. The benefit of DRL is that it can be adopted in different (unseen) EON topologies attaining better service blocking compared to traditional heuristics.
SDM and Parallelism in Submarine Cable Systems
Authors: Cai Jin-Xing
Published: May 2023

We review the most recent achievements in undersea transmission with high optical power efficiency and the associated enabling technologies and discuss the economics of SDM and the corresponding reduction in cost per bit for submarine cable systems.
108-Ch (12-Core×9-WDM) Self-Homodyne Transmission Using Only a Single Laser for 8.64-Tb/s Short-Reach Optical Links
Authors: Ishimura Shota , Kan Takashi , Maeda Shuntaro , Tanemura Takuo , Nakano Yoshiaki , Takahashi Hidenori , Tsuritani Takehiro
Published: May 2023

We demonstrate 108-ch (12-core×9-WDM) frequency comb-based self-homodyne multi-core transmission with a net bit rate of 8.64-Tb/s. This demonstration shows the feasibility of high-capacity short-reach SDM/WDM systems using only a single laser.
Experimental Investigation of Reduced Complexity MIMO Equalization in a 55-Mode Fiber SDM Transmission System
Authors: Ospina Ruby S. B. , Rademacher Georg , Luís Ruben S. , Puttnam Benjamin J. , Fontaine Nicolas K. , Mazur Mikael , Chen Haoshuo , Ryf Roland , Neilson David T. , Dahl Daniel , Carpenter Joel , Sillard Pierre , Achten Frank , Bigot Marianne , Mello Darli A. A. , Furukawa Hideaki
Published: May 2023

We investigate the MIMO equalizer complexity reduction by selective filter deactivation in a 25.9 km 55-mode SDM transmission system. We demonstrate a 21.5% equalizer complexity reduction at the cost of a 4.9% decrease in data rate.
Real-Time 179.2Tb/s Transmission using Commercial 400Gb/s Transceivers over 350 km Multicore Fiber
Authors: Feng Lipeng , Zhang Anxu , Guo Hao , Lou Xiaowei , Wang Dongxiang , Peng Chuyu , Liu Yuyang , Lv Kai , Liu Hao , Huo Xiaoli , Li Junjie
Published: May 2023

We firstly demonstrate the feasibility of 179.2 Tb/s transmissions over a 350 km 7-core fiber link while considering the splicing loss and link budget reservation for field deployment, using real-time 400Gb/s/carrier commercial transceivers.
An Operator’s Approach on the Coexistence in Future Optical Access Networks (Invited)
Authors: Saliou Fabienne , Chanclou Philippe , Simon Gaël , Potet Jérémy , Gaillard Georges , Le Huérou Stéphane
Published: May 2023

Main challenges of coexistence of future access transmissions are detailed. Important tradeoffs are identified: wavelength plan for triple PON coexistence, optics for high optical budget, considering OOB and SRS penalties. Multiplicity of technical implementations for PtP and PON transceivers are against future interoperability.
Real-time, low latency virtual DBA hypervisor for SLA-compliant multi-service operations over shared Passive Optical Networks
Authors: Ganguli Arijeet , Slyne Frank , Ruffini Marco
Published: May 2023

We present a heuristic algorithm for a PON upstream scheduling hypervisor, supporting low latency services with strict service-level agreement. The algorithm achieves near-optimal performance while running in only 3.5 µs, thus operating in real-time.
Experimental Assessment of Stimulated Raman Scattering Impairments between XGS-PON and 50G-(E)PON
Authors: Saliou Fabienne , Simon Gaël , Potet Jérémy , Chanclou Philippe
Published: May 2023

Critical 0.68dB of power depletion due to SRS on the upstream signals of 50G-(E)PON US and XGS-PON US is measured experimentally when contra-propagating in 20km SMF with 50G-(E)PON Downstream.
Demonstration of Industrial Network Applications by PHY Softwarization for Fully Virtualized Access Networks
Authors: Suzuki Takahiro , Koyasako Yushi , Kim Sang-Yuep , Kani Jun-ichi , Yoshida Tomoaki
Published: May 2023

This paper demonstrates that PHY processing for industrial network applications and PON can be realized on a common general-purpose server for flexible service creations; it realizes the level of latency performance required by IRT communication.
Deterministically Scheduled PON for Industrial Applications
Authors: Christodoulopoulos Konstantinos , Bidkar Sarvesh , Pfeiffer Thomas , Bonk Rene
Published: May 2023

We propose a deterministic scheduling scheme for TDM-PON upstream bursts to achieve low latency and jitter with high throughput efficiency. We demonstrate co-scheduling of TDM-PON with an Ethernet Time Sensitive Network to serve industrial applications.
Optimization of Classical Light Wavelengths Coexisting with C-band Quantum Networks for Minimal Noise Impact
Authors: Thomas Jordan M. , Kanter Gregory S. , Xie Si , Chung Joaquin , Valivarthi Raju , Peña Cristián , Kettimuthu Rajkumar , Spentzouris Panagiotis , Spiropulu Maria , Kumar Prem
Published: May 2023

We investigate the optimal coexisting classical light wavelengths to use alongside C- band quantum networks to minimize noise from spontaneous Raman scattering and discuss techniques for optimizing coexisting time synchronization systems for teleportation and entanglement swapping.
56 GBaud PAM-4 Direct Detection with High-Speed Avalanche Photodiodes
Authors: Beckerwerth Tobias , Kottke Christoph , Jungnickel Volker , Tropenz Ute , Möhrle Martin , Runge Patrick , Schell Martin
Published: May 2023

We demonstrate 56 GBaud PAM-4 transmission by using a high-speed waveguide avalanche photodiode (WG APD) and an electro absorption modulated laser (EML). Compared to a PIN photodiode, the WG APD reduces the power budget in a B2B setup by 6 dB.
19-Core SDM Self-Homodyne Coherent Transmission using Ultrafast Laser Inscribed Fan-In/Fan-Out Devices
Authors: Yang Min , Cai Chengkun , Liang Yize , Shen Lei , Zhu Yanjun , Zhang Hua , Yao Chaonan , Shao Yuchen , Zhang Lei , Yan Changkun , Yang Liubo , Wang Ruichun , Chu Jun , Wang Jian
Published: May 2023

We experimentally demonstrate space-division multiplexing (SDM) self-homodyne coherent transmission in 19-core fiber with low-cost, MHz-linewidth distributed feedback (DFB) laser, using fan-in/fan-out (FIFO) devices based on femtosecond laser direct writing technique.
Bi-Directional 5G NR Fiber-Wireless Systems with Single-Carrier Optical Modulation and Phase Modulation Scheme
Authors: Lin Yu-Shen , Fan Wei-Cheng , Lin Cheng-Jun , Li Chung-Yi , Lu Hai-Han
Published: May 2023

5G MMW/sub-THz signals through a bi-directional fiber-wireless system with single-carrier optical modulation for downstream and PM scheme for upstream are implemented. It shows promise for performing 5G NR communication towards MMW and sub-THz bands.
Bidirectional Full-duplex Delivery of 103Gbps PS-256QAM Signals over 20-km SMF and 4600-m Wireless
Authors: Li Weiping , Yu Jianjun , Wang Feng , Ji Xiaoxue , Yang Xiongwei , Zhou Wen , Xie Tangyao , Yu Jianguo , Zhang Jiao , Zhu Min , Zhao Feng , Lin Huajiong , Zhao Xianmin
Published: May 2023

We have experimentally demonstrated photonics-aided bidirectional full-duplex delivery of 103Gbps PS-256QAM signals over 20-km single-mode fiber wireline link and 4600 m wireless link based on the polarization-division-multiplexing scheme and advanced DSPs.
In0.52Al0.48As Based Single Photon Avalanche Diodes with Multiple M-Layers for High-Efficiency and Fast Temporal Responses
Authors: Wang Po-Shun , Hung Yu-Ying , Fang Tzu-Yuan , Kuo Chin-He , Huang Yuan-Hung , Chang Yan-Chieh , Lee Yi-Shan , Shi Jin-Wei
Published: May 2023

Multiple multiplication-layers SPADs with excellent performances in terms of high-efficiency (>74%), neat impulse response time (101ps), and short hold-off time (83ns@<1% afterpulsing) can be achieved simultaneously with a simple passive quenching circuit under gated-mode operations.
Characterization of Coupled Multi-core Fiber Nonlinearity using Modified CW-SPM Method
Authors: Sakamoto Taiji , Imada Ryota , Nakajima Kazuhide
Published: May 2023

Narrow bandwidth continuous-wave-based SPM method is proposed for measuring the effective nonlinear coefficient γeff of coupled multi-core fibers. We confirmed that the measured γeff with 2- or 4-core fibers agreed well with the theoretical model.
DSP Design for Point-to-Multipoint Transmission
Authors: Duthel Thomas , Fludger Chris R.S. , Liu Bo , Napoli Antonio , Rashidinejad Amir , Ranzini Stenio , Erkilinc Sezer , Kakkar Aditya , Mathur Atul , Dominic Vince , Samra Parmijit , Sun Han , Somani Azmina , Welch Dave
Published: May 2023

Coherent optical transmission systems using digital sub-carriers are ideal for point-to-multi-point applications. Many functional blocks are similar to the ones of single-channel processors. But, several aspects, specific to digital sub-carriers and point-to-multi-point, need consideration in the DSP implementation.
Calibration of High-Speed Time-Interleaving DAC
Authors: Zhang Ke , Su Xiaofei , Nakashima Hisao , Hoshida Takeshi , Tao Zhenning
Published: May 2023

Distortion in high-speed time-interleaving DAC caused by the mismatch among sub- DACs is experimentally calibrated by the enhanced error backpropagation scheme. Undesired spur is reduced by 20 dB, and the ENOB is improved by 0.72 bit.
Experimental Probing and Modeling of the PDL Impact on the Optical Signal-to-Noise Ratio
Authors: D’Amico Andrea , Borraccini Giacomo , Straullu Stefano , Aquilino Francesco , Piciaccia Stefano , Tanzi Alberto , Galimberti Gabriele , Curri Vittorio
Published: May 2023

The PDL impact upon the OSNR is systematically probed in an experimenttal setup using coherent optical technology for the first time. Extending the observation through a Monte Carlo analysis, the PDL-induced OSNR penalty is modeled.
Optical Satellite Networks
Authors: Chan Vincent W.S.
Published: May 2023

We will explore the architecture of optical satellite networks at 100G-1Tbps. The challenge is to architect the system and the network protocols with large bandwidth-delay products and the presence of atmospheric turbulence and weather.
Access Point Selection based on Regular Coding in Walkerdelta Satellite Optical Networks
Authors: Zhang Yuanjian , Wang Wei , Zhao Yongli , Wang Hua , Jing Yinji , Zhang Jie
Published: May 2023

In this paper, a mobile-side access satellite selection algorithm based on regular coding is proposed. Simulation results show it can effectively reduce the connection latency and blocking ratio in walker-delta satellite optical networks.
Field Trial of End-to-end Management and Control of Semiactive WDM System for 5G Centralized Front-haul Network
Authors: Zhao Yang , Sun Jiang , Zheng Haomian , Yu Chaode , Wang Dong , Cai Qian , Li Yunbo , Han Liuyan , Zhang Dechao , Li Han
Published: May 2023

A novel management and control architecture and abstract model of semi-active WDM system for 5G front-haul network are proposed. The functions of device information acquisition, alarm monitoring and fault location is demonstrated in field trial.
MAESTRO: MAke-bEfore-break StraTegy for Reconfiguration in Optical Datacenters
Authors: Singh Sandeep Kumar , Liu Che-Yu , Proietti Roberto , Ben Yoo S. J.
Published: May 2023

We present a MAke-bEfore-break StraTegy for Reconfiguration in Optical datacenters (MAESTRO). The simulation results show a reduction in packet loss by up to 98% compared to a baseline reconfiguration method.
On the Performance of a Fast Optically Switched Network for Machine-Learning Accelerator Clusters
Authors: Rombouts M.P.G. , Calabretta N.
Published: May 2023

We investigate the viability of optically switched network for ML accelerator clusters and compare it to a leaf-spine network with 256/1024 GPUs. Results show almost ideal throughput, sub-µs latency and zero packet-loss for ¡0.6 traffic-load.
Methods for Geophysical Sensing on Submarine Cables
Authors: Kamalov Valey
Published: May 2023

We will review basic physics to establish five methods to use subsea optical fiber networks for network resiliency improvements, earthquake and tsunami early warning and climate change: i) Optical interferometry-based, ii) Optical polarization-based, iii) Coherent Rayleigh backscattering; iv) Microwave frequency fiber interferometry, and v) Faraday’s law of induction to explain correlation of voltage disturbance and the strength of the geomagnetic perturbation TeleGeography’s Interactive Submarine Cable Map. 487 global cables and 1,304 landing stations 1.3+ million km
On the Spatial Resolution of Location-Resolved Performance Monitoring by Correlation Method
Authors: Hahn Choloong , Jiang Zhiping
Published: May 2023

We show that the spatial resolution of correlation method for location-resolved performance monitoring is as good as the MMSE by applying deconvolution. Also, we propose a digital block filtering method to improve the spatial resolution under given signal and link condition.
Locating Fiber Loss Anomalies with a Receiver-side Monitoring Algorithm exploiting Cross-Phase Modulation
Authors: Serena P. , Lasagni C. , Bononi A. , Boitier F. , May A. , Ramantanis P. , Lonardi M.
Published: May 2023

We propose and experimentally test a cross-phase modulation based algorithm to monitor network loss anomalies from detected data. The idea does not need service interruption, special signals, nor an exhaustive search of the anomaly coordinate.
Distributed Span Degradation Self-Aware Detection and Compensation for C+L-band Transmission Systems
Authors: Li Shengnan , Zhu Chen , Wang Shuo , Gao Feng , Cui Yongxin , Cheng Gang , Zhou Xu
Published: May 2023

We propose a distributed approach that enables OLAs to instantaneously self-aware its preceding span’s degradation and apply the gain/tilt adjustments, this ultra-fast method is experimentally demonstrated in both C96+L96 and C120+L100 systems with near-optimal performance.
Reusing Data Center Optics and Solutions for Beyond 25Gb/s PON: Is the Gap Really Bridged?
Authors: Houtsma Vincent , van Veen Dora
Published: May 2023

In this paper we will review the benefits as well as challenges to overcome in adoption of data center technologies for next-generation TDM-PONs.
An Apparatus for Fast Inspecting and Cleaning Connector
Authors: Huang Paul , Castro Jose M. , Sedor Thomas , Pimpinella Rick , Kose Bulent , Lane Brett
Published: May 2023

In this paper, we present a novel apparatus that can inspect and clean the end face of the fiber-optic connector without the need to switch the connector from one tool to another.
Bundle-type fan-in/fan-out device for 4-core multi-core fiber with high return loss
Authors: Ozaki Kohei , Koike Yoshifumi , Nishimura Akito
Published: May 2023

We have developed a bundle-type fan-in/fan-out device that can achieve a high return loss by using a multi-core fiber/single-core fiber conversion component comprising a high- precision molded plastic ferrule.
Quasi-Constant Signal Power Transmission with Low Signal RIN by DRA with Incoherent-Forward and Coherent-Backward Pumps
Authors: Takasaka Shigehiro , Ohishi Norihiro , Ichihara Satoru , Thudsalingkarnsakul Nitidet , Hojo Naoya , Tatamida Yasuto , Yoshida Junji , Anantathanasarn Sanguan , Kimura Toshio
Published: May 2023

We measure characteristics of a transmitted WDM signal in an 80 km-long SMF under bi-directionally pumped DRA with incoherent-forward and coherent-backward pumps. The signal shows OSNR of 50.0 dB and RIN less than -140 dB/Hz.
4-Core Fiber Narrow Pitch Fanout Comprised of Tapered High-Δ MCF
Authors: Takahashi Masanori , Sasaki Tsubasa , Sugizaki Ryuichi , Arashitani Yoshihiro
Published: May 2023

Narrow pitch all fiber base fanout comprised of fiber bundle fanout and high-Δ 4-core fiber is developed. Core pitch and insertion loss of the fanout are reduced to 19.4 µm and 0.6 dB, respectively.
Speedy and Cost-efficient Optical Network Modernization through Quantum-inspired Computing
Authors: Sugimura Masahiko , Javad-Kalbasi Mohammad , Matsumura Hidetoshi , Wang Xi , Palacharla Paparao , Valaee Shahrokh
Published: May 2023

We present a migration plan optimization solution to accelerate the removal of legacy devices and minimize travel costs in network modernization utilizing Fujitsu Digital Annealer. Our method found more cost-efficient plans by up to 70%.
Towards an Analytical Tool to Support Planning of 400ZR+-Enabled IPoWDM Networks
Authors: Jara Nicolas , Rubino Gerardo , Pempelfort Hermann , Morales Patricia , Beghelli Alejandra
Published: May 2023

A highly accurate analytical procedure to support emerging ZR+-enabled IPoWDM network planning tools is presented. The procedure is four orders of magnitude faster than simulation, allowing extensive and fast network analysis and design.
Demonstration of Real-time 4×125.516 Gbit/s MMW-over- Fiber Passive Optical Network Transmission at W-Band Based on Optical Wavelength Routing Scheme
Authors: Hua Bingchang , Zhu Min , Zhang Jiao , Lei Mingzheng , Cai Yuancheng , Zou Yucong , Tian Liang , Chen Jian , Tong Weidong , Liu Xiang , Zhao Guo , Yu Jianjun
Published: May 2023

We proposed and experimentally demonstrate the first real-time transparent point-to- multipoint photonics-assisted MMW-over-fiber passive optical network transmission scheme with a record line rate of 4×125.516 Gbit/s at W-band based on optical wavelength routing scheme.
On the Rate Monitoring Performance of Active Learning-based Classifier for PCS-based Rate-flexible TWDM-CPON
Authors: Wei Zixian , Zhang Jinsong , Li Weijia , Plant David V.
Published: May 2023

We firstly demonstrated an active learning (AL)-based classifier for monitoring the entropy/rate of the PCS-based rate-flexible TWDM-CPON. For an 80-km 350-Gb/s/λ~450-Gb/s/ λ. downstream, AL-based scheme achieves 100%/95% entropy/rate identification accuracies corresponding to 25/5 Gbps tuning steps.
Low-Complexity RMS-enhanced Digital Pre-emphasis under Limited Transmitter Power and ENoB
Authors: Ng Wing Chau , Guo Qingyi , Chang Junho , Zhao Tianyu , Qiu Meng , Tang Xuefeng , Jiang Zhiping , Li Chuandong
Published: May 2023

We optimize digital pre-emphasis for narrow optical filtering using the balance among electrical RMS, equalization-enhanced noise and quantization, and experimentally show a low-complexity cutoff approach to enhance SNR in strong pre-emphasis.
Silicon Photonic Tunable Flat-top Filters based on CROW Structures at 2-µm Spectral Range
Authors: Wu You , Guo Xiaoyuan , Wang Xi , Du Jiangbing , Song Qinghai , Xu Ke
Published: May 2023

Silicon photonic tunable flat-top filters are demonstrated via the 5th-order and the 10th-order CROW structure at 2-µm waveband. Box-like transmission spectra are measured with 3-dB bandwidth of 3.34 nm and 5.34 nm, respectively.
Aging effects on the attenuation coefficient and splice losses in installed submarine optical cables
Authors: Ciufo Poeys R. A. , von der Weid J. P.
Published: May 2023

Aging effects in submarine optical cables were evaluated with OTDR measurements along 12 years. Penalties from splice losses were twofold higher than those from fiber attenuation. Cables are expected to last more than 25 years.
Thin-film Lithium Niobate Photonic Devices on 8-inch Silicon Substrates
Authors: Wang Hengyu , Xu Yang , Li Zhaoyi , Jia Lianxi , Zhu Shiyang , Wang Yuxi , Yao Zhanshi , Zheng Shaonan , Zhong Qize , Dong Yuan , Hu Ting
Published: May 2023

Thin-film lithium niobate photonic devices are first demonstrated on 8-inch silicon substrates. The fabrication is done in a commercial semiconductor foundry. A waveguide propagation loss of 0.47±0.09 dB/cm is achieved at 1550 nm wavelength.
Heterogeneous balanced photodetector on silicon nitride with 30 GHz bandwidth and 26 dB common mode rejection ratio
Authors: Gao Junyi , Tzu Ta Ching , Fatema Tasneem , Guo Xiangwen , Yu Qianhuan , Navickaite Gabriele , Zervas Michael , Geiselmann Michael , Beling Andreas
Published: May 2023

We demonstrate InGaAs/InP balanced photodiodes on Si3N4 waveguides with record-high 3-dB bandwidth of 30 GHz, 0.72 A/W responsivity, and high common mode rejection ratio (CMRR) of 26 dB at 30 GHz.
Digital Filter Design For Experimental Continuous-Variable Quantum Key Distribution
Authors: Alsaui Abdulmohsen , Alwehaibi Yazeed , Prabhakar Anil , Venkitesh Deepa
Published: May 2023

We explore the effect of digital filter design on enhancing the performance of an experimental CV-QKD system. The filtering procedure is anticipated to enable greater than 20Mbaud/s at 20km fiber length.
A novel distributed spun fiber twist sensor based on frequency-scanning φ-OTDR
Authors: Chen Can , Zhao Zhiyong , Lin Zhonghong , Yao Yucheng , Tong Weijun , Tang Ming
Published: May 2023

A novel distributed twist sensor utilizing frequency-scanning φ-OTDR in a spun fiber is theoretically analyzed and experimentally demonstrated by tracking the fiber twist induced frequency shift of correlation peak, enabling distributed quantitative twist measurement.
(Invited) How Traffic Analytics Shapes Traffic Engineering, Topology Engineering, and Capacity Planning of Jupiter
Authors: Zheng Anny Xijia , Zhang Jianan , Wang Rui , Poutievski Leon
Published: May 2023

Three prominent traffic features including peak alignment, stable ranking, and gravity model, have guided the design of current Google Jupiter fabrics in traffic engineering, topology engineering, and capacity planning.
From Chip to Module: Silicon-Nitride for Visible Light
Authors: Geuzebroek Douwe , Leinse Arne , Dekker Ronald , Frentrop Raimond , Klein Edwin , Al-Obaidi Sadoon
Published: May 2023

Integrated photonics present an exciting opportunity to accelerate the development of optical devices via on-chip integration. The advantages of photonic integrated circuits include increased operational sensitivity, durability, and the opportunity to develop entirely new devices with unprecedented functionality. Silicon nitride circuits offer especially high-fidelity signal propagation and manipulation capabilities, with TriPleX® being a particularly powerful example. However, it is not enough to replicate optical functions on-chip without careful consideration of how the chip connects to other optical devices and electronics, and how it is protected from its operational by-products and the environment.
Entanglement Measurement Using Pump-Phase Control on an Up-Conversion Detector
Authors: Lee K. F. , Moraw Paul , Reilly D. R. , Kanter Gregory S.
Published: May 2023

We measure sequential time-bin entangled light by dynamically adjusting the pump phase of an up-conversion detector, allowing fast basis state control without adding loss to the quantum signal.
An Acousto-Optic Modulator Based High Performance Optical Switch for Quantum Technology in Fiber Communication Band
Authors: Li Wenqi , Deng Qiqi , Guo Xueshi , Li Xiaoying
Published: May 2023

We demonstrate an optical switch based on the interferometric enhancement of acousto-optic diffraction. The high transmitting efficiency of 92% and the high isolation of 74 dB make it a powerful tool for quantum technology.
State-of-the-Art 800G/1.6T Datacom Interconnects and Outlook for 3.2T
Authors: Zhou Xiang , Lam Cedric F. , Urata Ryohei , Liu Hong
Published: May 2023

We review state-of-the-art datacenter technologies for 800G, 1.6T and beyond interconnect speeds, focusing on 200G per-lane IM-DD (intensity modulated-direct detect) and 800G-LR1 coherent-lite transmissions.
First Demonstration of MWDM-Based 400G-LR4 over 10-km SSMF Supporting 400GE and OTN Dual Rates
Authors: Wang Dong , Zuo Mingqing , Zhang Wei , Lin Tao , Sun Jiang , Gui Tao , Zhang Wupin , Ge Dawei , Jiang Chendi , Liu Chenggang , Li Yunbo , Li Changsheng , Lin Daheng , Han Liuyan , Zhang Dechao , Duan Xiaodong , Li Han
Published: May 2023

We report the first demonstration of cost-effective 400G-LR4 optical module based on O-band MWDM, achieving error-free transmission of both 400GE and OTN rates over 10-km SSMF with an optical link budget of over 6.7 dB.
Recent Advances in Carrier Phase Recovery Algorithms
Authors: Guiomar F. P. , Neves M. S. , Lorences-Riesgo A. , Martins C. S. , Mumtaz S. , Frignac Y. , Charlet G. , Monteiro P. P.
Published: May 2023

We review the most recent advances in carrier phase estimation algorithms for coherent optical communications, with special emphasis on multi-carrier modulation systems and on the interplay between linear and nonlinear phase noise sources.
MIMO Coding Technique for PDL and Crosstalk Mitigation in Optical Transmission Systems
Authors: Abouseif Akram , Othman Ghaya Rekaya-Ben , Jaouën Yves
Published: May 2023

We propose new coding technique, called IQ-code, to mitigate PDL and inter-channel crosstalk on optical fiber transmission. We obtain 0.3-0.5 dB OSNR gain at FEC limit for any number of sub-carrier by simple ZF decoding.
On the Nonlinearity Tolerance of Using Short DM Blocklengths for SOA Booster in Coherent Systems
Authors: Nguyen Trung-Hien , Martins Celestino S. , Lorences-Riesgo Abel , Le Gac Dylan , Mumtaz Sami , Demirtzioglou Iosif , El Dahdah Nayla , Brenot Romain , Frignac Yann , Charlet Gabriel , Zhao Yu
Published: May 2023

SOA nonlinearity tolerance is experimentally demonstrated for 68 Gbaud single-carrier/8-carrier PCS-64QAM systems. 1.4 dB additional output power is obtained with a 256 blocklength ESS, at the similar optimal SNR and rate loss of long blocklength CCDM.
Demonstration of Point-to-Multipoint 100G Coherent PON to Support Broadband Access and B5G/6G Mobile X-haul
Authors: Wei Yingxin , Zhang Jiao , Tong Weidong , Hua Bingchang , Li Qinru , Zhang Junhao , Lei Mingzheng , Cai Yuancheng , Zou Yucong , Tian Liang , Zhu Min
Published: May 2023

We experimentally demonstrate a rate-flexible point-to-multipoint 100G coherent PON with downlink and uplink using digital subcarrier multiplexing to simultaneously support up to 64 nodes for fixed broadband and W-band mmWave wireless access.