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Light(Science & Applications) 2024年第9期13卷 1931-1943页

作者： Zekun Niu Hang Yang Lyu Li Minghui Shi Guozhi xu Weisheng Hu Lilin Yi State key lab of Advanced optical communication Systems and Networks School of Electronic Information and Electrical EngineeringShanghai Jiao Tong UniversityShanghai 200240PR China

The surge in interest regarding the next generation of optical fiber transmission has stimulated the development of digital signal processing(DSP)schemes that are highly cost-effective with both high performance and low *** benchmarks for nonlinear compensation methods,however,traditional DSP designed with block-by-block modules for linear compensations,could exhibit residual linear effects after compensation,limiting the nonlinear compensation *** we propose a high-efficient design thought for DSP based on the learnable perspectivity,called learnable DSP(LDSP).LDSP reuses the traditional DSP modules,regarding the whole DSP as a deep learning framework and optimizing the DSP parameters adaptively based on backpropagation algorithm from a global *** method not only establishes new standards in linear DSP performance but also serves as a critical benchmark for nonlinear DSP *** comparison to traditional DSP with hyperparameter optimization,a notable enhancement of approximately 1.21 dB in the Q factor for 400 Gb/s signal after 1600 km fiber transmission is experimentally demonstrated by combining LDSP and perturbation-based nonlinear compensation *** from the learnable model,LDSP can learn the best configuration adaptively with low complexity,reducing dependence on initial *** proposed approach implements a symbol-rate DSP with a small bit error rate(BER)cost in exchange for a 48%complexity reduction compared to the conventional 2 samples/symbol *** believe that LDSP represents a new and highly efficient paradigm for DSP design,which is poised to attract considerable attention across various domains of optical communications.

关键词： fiber signal optical

A Demonstration of Automatically Switched optical Network

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光学学报 2003年第S1期23卷 669-670页

作者： Weisheng Hu, Yaohui Jin, Chun Jiang, Yue Wang, Xiaodong Wang, Chunlei Zhang, Yang Lu,Buwei xu, Peigang Hu, Qingji ZengState key lab of Advanced optical communication Systems and Networks, Shanghai Jiao Tong University, P. R.China, Tel: 86-21-62932029, E-mail: wshu@*** State key lab of Advanced optical communication Systems and Networks Shanghai Jiao Tong University P. R.China

We build an automatically switched optical network (ASON) testbed with four optical cross-connect nodes. Many fundamental ASON features are demonstrated, which is implemented by control protocols based on generalized ... 详细信息

关键词： GMPLS ASON A Demonstration of Automatically Switched optical Network OXC of link

Three-dimensional nanoscale vortex line visualization and chiral nanostructure fabrication of tightly focused multi-vortex beams via direct laser writing

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Photonics Research 2024年第1期12卷 70-77页

作者： MENGDI LUO JISEN WEN PENGCHENG MA QIUYUAN SUN XIANMENG XIA GANGYAO ZHAN ZHENYAO YANG LIANG xu DAZHAO ZHU CUIFANG KUANG xu LIU Research Center for Intelligent Chips and Devices Zhejiang LabHangzhou 311100China State key laboratory of Extreme Photonics and Instrumentation College of Optical Science and EngineeringZhejiang UniversityHangzhou 310027China ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou 311200China

optical singularity is pivotal in nature and has attracted wide interest from many disciplines nowadays,including optical communication,quantum optics,and biomedical *** vortex lines formed by phase singularities and fabricating chiral nanostructures using the evolution of vortex lines are of great *** this paper,we introduce a promising method based on two-photon polymerization direct laser writing(2PP-DLW)to record the morphology of vortex lines generated by tightly focused multi-vortex beams(MVBs)at the *** to Gouy phase,the singularities of the MVBs rotate around the optical axis and move towards each other when approaching the focal *** propagation dynamics of vortex lines are recorded by 2PP-DLW,which explicitly exhibits the evolution of the phase ***,the MVBs are employed to fabricate stable three-dimensional chiral nanostructures due to the spiral-forward property of the vortex *** of the obvious chiral features of the manufactured nanostructures,a strong vortical dichroism is observed when excited by the light carrying orbital angular momentum.A number of applications can be envisioned with these chiral nanostructures,such as optical sensing,chiral separation,and information storage.

关键词： vortex chiral singularity

SDH 网管系统的告警与性能模块软件的研究

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上海交通大学学报 1997年第5期31卷 103-106页

作者：陈阜东黄培中张宏熙徐雪松 "区域光纤通信网与新型光通信系统"国家重点实验室上海交通大学光纤技术研究所上海邮电通信设备股份有限公司

研究了ＳＤＨ网络管理系统和ＳＤＨ子网级管理系统的通信结构，以及与ＳＤＨ网络运行密切相关的模块——告警与性能管理模块的实现．分析了通过ＳＤＨ管理系统各个层次之间的通信如何实现告警数据和性能数据的充分利用．

关键词：告警管理性能管理软件光纤通信 SDH网络管理

All-silicon low-loss THz temporal differentiator based on microring waveguide resonator platform

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Light(Advanced Manufacturing) 2024年第2期5卷 14-23页

作者： Yunjie Rui Shuyu Zhou xuecou Tu xu Yan Bingnan Yan Chen Zhang Ziyao Ye Huilin Zhang Jingya Xie Qing-Yuan Zhao La-Bao Zhang Xiao-Qing Jia Huabing Wang Lin Kang Jian Chen Peiheng Wu Research Institute of Superconductor Electronics(RISE) School of Electronic Science and EngineeringNanjing UniversityNanjingJiangsu 210023China Hefei National laboratory Hefei 230088China Purple Mountain laboratories NanjingJiangsu 211111China Terahertz Technology Innovation Research Institute Shanghai Key Lab of Modern Optical SystemUniversity of Shanghai for Science and TechnologyShanghai200093China

Microring resonators have been widely used in passive optical devices such as wavelength division multiplexers,differentiators,and *** on terahertz(THz)components has been accelerated by these photonics *** and integrated time-domain differentiators that enable low-loss,high-speed THz signal processing are necessary for THz *** this study,an on-chip THz temporal differentiator based on all-silicon photonic technology was *** device primarily consisted of a microring waveguide resonator and was packaged with standard waveguide *** performed time-domain differentiation on input signals at a frequency of 405.45 GHz with an insertion loss of 2.5 dB and a working bandwidth of 0.36 *** periodic waveforms could be handled by this *** device could work as an edge detector,which detected step-like edges in high-speed input signals through differential *** development holds significant promise for future THz data processing technologies and THz communication systems.

关键词： Silicon photonics Whispering gallery mode resonator THz silicon waveguide

Programmable photonic RF filters based on an integrated Fabry-Pérot laser with a saturable absorber

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Chinese Optics Letters 2024年第2期22卷 214-220页

作者：徐真真刘奕彤刘嘉慧王玲孙文韬孙振兴陈向飞 key laboratory of Intelligent optical Sensing and Manipulation of the Ministry of Education&National laboratory of Solid State Microstructures&College of Engineering and Applied Sciences&Institute of optical communication Engineering&Nanjing University-Tongding Joint lab for Large-Scale Photonic Integrated Circuits Nanjing UniversityNanjing 210023China

We propose and experimentally demonstrate the programmable photonic radio frequency(RF)filters based on an integrated Fabry-Pérot laser with a saturable absorber(FP-SA).Owing to the high output power and the relative flatness spectrum of the FP-SA laser,only a waveshaper and an erbium-doped fiber amplifier(EDFA)were needed,which can greatly reduce the complexity of the *** sinc filter employed 87 taps,representing a record-high tap number and resulting in a 3-d B bandwidth of 0.27 GHz and a quality factor of ***,Gaussian apodization enabled the out-of-band rejection of the filter to reach 34 d B and the center frequency to be finely tuned over a wide range,spanning from 4 to 14 *** results indicate that the proposed scheme could provide a promising guideline for the photonic RF filters that demand both high reconfigurability and greatly reduced size and complexity.

关键词： microwave filters microwave photonics passively mode-locked laser

Simulation of optical Models in Lightwave Links Using SPW

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Simulation of Optical Models in Lightwave Links Using SPW

1998 International Conference on communication Technology

作者： Haocheng Zheng shizhong Xie Zucheng Zhou Bingkun Zhou Dept.of Electronic Engineering Tsinghua University

ISBN: (纸本)7800908275

＜正＞In this article optical models in lightwave links,which include a LD（laser diode） source, a single-mode fiber and a p-i-n photodiode receiver model,are simulated and investigated using SPW（signal processing worksystem） on HP workstation. Simulation methods are presented concerning about the optical source waveforms,fiber attenuation and dispersion,and receiver *** end-to-end performance of typical transmission system is also presented. SPW software and its’ usage on HP workstation are introduced.

关键词： optical fiber transmission system LD single-mode fiber p-i-n photodiode SPW

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超构表面调控可见光发射及其应用(特邀)

激光与光电子学进展 2024年第3期61卷 213-232页

作者：王绍军张郑合侯紫玥翟一恒徐超捷李孝峰苏州大学光电科学与工程学院&苏州纳米科技协同创新中心江苏苏州215006 江苏省先进光学制造技术重点实验室&教育部现代光学技术重点实验室江苏苏州215006 哈尔滨工业大学物理学院黑龙江哈尔滨150001 苏州大学功能纳米与软物质研究院江苏苏州215123

人工构建的平面化超构表面由于其独特的电磁响应以及超薄、易集成的优势,在光子学和新型光电子技术方面发挥着至关重要的作用。基于近场共振模式的发光超构表面在散射辐射光子、定向和增强光子态密度等方面展现出独特优势,拓展了其在前... 详细信息

人工构建的平面化超构表面由于其独特的电磁响应以及超薄、易集成的优势,在光子学和新型光电子技术方面发挥着至关重要的作用。基于近场共振模式的发光超构表面在散射辐射光子、定向和增强光子态密度等方面展现出独特优势,拓展了其在前沿光子学领域的应用。本文概述了超构表面调控系综量子光源辐射行为的基本原理,详细介绍了可见光波段内发光超构表面最新的研究应用进展,包括微小型固态照明、虚拟现实和增强现实高清显示、可见光通信、高能X射线探测、手性光源以及低阈值微纳激光器等领域的应用。最后展望了发光超构表面的未来发展方向。

关键词：光学器件微纳光子器件发光超构表面定向辐射平面光源

IPSOFACTO快速ATM信元传输上的IP交换

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计算机工程 1999年第8期25卷 16-17页

作者：许飞许晓鸣杨煜普孙海荣上海交通大学电信学院自动化系上海200030 电子科技大学光纤通信国家重点实验室成都610054

介绍了一种无需信令通过ATM交换机建立路径，将IP流映射到ATM交换的技术。IPSOFACTO（IPSwitchingOverFastATMCellTransport）负责将IP流映射到一条ATM交换路径。

关键词： IPSOFACTO IP交换 ATM Internet网信元