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Asia Communications and Photonics Conference and Exhibition (ACP)

作者： Jianyao Zhang Yixiao Zhu Xiansong Fang Yimin Hu Yikun Zhang Fan Zhang Weisheng Hu State Key Laboratory of Advanced Optical Communication System and Networks Shanghai Jiao Tong University Shanghai China State Key Laboratory of Advanced Optical Communication System and Networks Peking University Beijing China Pengcheng Laboratory Shenzhen China

We experimentally demonstrate a dispersion-diverse receiver to mitigate the CD-induced power fading for IM-DD systems at C-band. The receiver can support 256.5 Gb/s line-rate PS-64-QAM signal transmission over 10-km S... 详细信息

ISBN: (数字)9798350379266

ISBN: (纸本)9798350379273

关键词： Fading channels C-band Prevention and mitigation Asia Modulation Receivers Bandwidth optical fiber communication Dispersion Photonics

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A Gravity Gradient Measurement system Based on Fiber-optic Gyroscope 28

A Gravity Gradient Measurement System Based on Fiber-optic G...

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28th International Conference on optical Fiber Sensors, OFS 2023

作者： Chen, Yanjun Wang, Wenbo Zhu, Lanxin He, Yan Huang, Huimin Cao, Yuwen Ma, Xiangdong Li, Zhengbin Li State Key Laboratory of Advanced Optical Communication Systems and Networks School of Electronics Peking University Beijing100871 China

A gravity gradient measurement system based on fiber-optic gyroscope is proposed and implemented. The static test results show that the resolution of the system can reach 0.39 E @ 100s, indicating a low self-noise per... 详细信息

ISBN: (纸本)9781957171302

关键词： Gyroscopes

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Eliminating correlation on a continuous variable source independent quantum random number generator with finite bandwidth

Eliminating correlation on a continuous variable source inde...

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2024 Asia Communications and Photonics Conference, ACP 2024 and International Conference on Information Photonics and optical Communications, IPOC 2024

作者： Zhou, Han Wang, Xiangyu Chen, Ziyang Yu, Song State Key Laboratory of Information Photonics and Optical Communications School of Electronic Engineering Beijing University of Posts and Telecommunications Beijing China State Key Laboratory of Advanced Optical Communication Systems and Networks School of Electronics Center for Quantum Information Peking University Beijing China

This paper proposes a security protocol based on continuous-variable source-independent quantum random number generator, which analyzes the data correlations caused by the finite bandwidth of the detector. © 2024... 详细信息

ISBN: (纸本)9798350379266

关键词： Random number generation

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optically Pumped Cesium Beam Clock Using Monochromatic Light

Optically Pumped Cesium Beam Clock Using Monochromatic Light

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2023 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFCS 2023

作者： Liu, Chen Li, Yuanhao Chen, Sifei Fan, Lifeng Wang, Yanhui School of Electronics State Key Laboratory of Advanced Optical Communication System and Network Peking University Beijing100871 China

We propose a new method about optically pumped cesium beam clock. Due to the magnetic field of selecting magnet, the pumping light and detection light use the same frequency laser which makes system structure simpler.... 详细信息

ISBN: (纸本)9798350311426

关键词： Atomic clock Cesium beam Frequency standard optical pumping

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Continuous-variable Quantum key Distribution Access Network

Continuous-variable Quantum Key Distribution Access Network

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2024 Photonics and Electromagnetics Research Symposium, PIERS 2024

作者： Wang, Tao Xu, Yuehan Li, Lang Liu, Xu Tan, Zicong Huang, Peng Zeng, Guihua Shanghai Jiao Tong University State Key Laboratory of Advanced Optical Communication Systems and Networks Center of Quantum Sensing and Information Processing Shanghai200240 China

ISBN: (纸本)9798350375909

Quantum key distribution (QKD) networks are crucial for the development of quantum networks and the early stages of the quantum internet, enabling unconditional secure key distribution and guaranteeing data security. However, current QKD networks are still limited in their structure, and are hard to achieve super multi-user access due to high system costs associated with the original point-to-point QKD system. In this paper, we introduce two cost-effective continuous-variable QKD (CV-QKD) access network schemes. The first one is a round-trip multi-band CV-QKD access network. Specifically, the frequency division multiplexing (FDM) technology is used to support multi-user access, and the round-trip optical architecture is adopted to realize low cost. As a result of the encoding properties of CV-QKD, different users can utilize the quadrature components in various frequency bands to transmit key information. The proposed network theoretically supports hundreds of users and can be easily expanded using simple equipment. The second one is a CV-QKD access network based on directed detection. With the help of the Kramers-Kronig relation, the receiver at the optical network unit can obtain the quadrature components just using a photodetector. Besides, it can also solve the practical issues in the plug-and-play structure. Compared with a quantum access network based on the point-to-point QKD system, these two schemes can provide cost-effective solutions for the subsequent large-scale verification and implementation of quantum access networks. © 2024 IEEE.

关键词： Kramers-Kronig relations

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Correction Algorithm of Doppler Effect on the Comb-Based FSO-TWTFT for Satellite Application

Correction Algorithm of Doppler Effect on the Comb-Based FSO...

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2023 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFCS 2023

作者： Wang, Long Jiao, Wenhai Hu, Liang Chen, Jianping Wu, Guiling Shanghai Jiao Tong University State Key Laboratory of Advanced Optical Communication System and Networks Department of Electronic Engineering China Beijing Institute of Tracking and Telecommunication Technology Beijing China

We further analyze the Doppler effect caused by high-velocity platform motion for the comb-based free-space optical two-way time-frequency transfer technique. A novel synchronization algorithm is proposed to correct t... 详细信息

ISBN: (纸本)9798350311426

关键词： Doppler effect optical frequency comb transfer satellite motion

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Observing non-Hermiticity induced chirality breaking in a synthetic Hall ladder

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Light(Science & Applications) 2025年第1期14卷 280-290页

作者： Rui Ye Yanyan He Guangzhen Li Luojia Wang Xiaoxiong Wu Xin Qiao Yuanlin Zheng Liang Jin Da-Wei Wang Luqi Yuan Xianfeng Chen State Key Laboratory of Advanced Optical Communication Systems and Networks School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai200240China School of Physics Nankai UniversityTianjin300071China Zhejiang Key Laboratory of Micro-Nano Quantum Chips and Quantum Control School of Physicsand State Key Laboratory for Extreme Photonics and InstrumentationZhejiang UniversityHangzhou310027China Shanghai Research Center for Quantum Sciences Shanghai201315China Collaborative Innovation Center of Light Manipulations and Applications Shandong Normal UniversityJinan250358China

Non-Hermitian topological photonics plays a key role in bridging topological matter with gain and loss engineering in *** we report the experimental observation of the break of chiral currents in a Hall ladder from the non-Hermiticity by constructing synthetic frequency dimension in two rings,where currents on both legs of the ladder co-propagate in the same *** origin of such phenomena is resulted from the interplay between the effective magnetic flux and the on-site gain and *** non-Hermitian co-propagating currents exhibit characteristics of unidirectional frequency conversion in both rings,and moreover,different from the counterpart in Hermitian systems,can provide a method to probe the signatures of the non-Hermitian skin effect from steady-state bulk *** model is further extended to models including next-nearest-neighbor couplings,pointing to a way for observing the non-Hermitian signature with higher winding number,and provides a new control knob for light manipulation with the topological dissipation engineering.

关键词： ladder topological signature

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A Voigt Anomalous Dispersion optical Filter Immune to the Cell Temperature Fluctuation

A Voigt Anomalous Dispersion Optical Filter Immune to the Ce...

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2023 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFCS 2023

作者： Liu, Zijie Guan, Xiaolei Shi, Tiantian Dang, Anhong Chen, Jingbiao Peking University State Key Laboratory of Advanced Optical Communication Systems and Networks School of Electronics Beijing China Beijing University of Posts and Telecommunications State Key Laboratory of Information Photonics and Optical Communications Beijing China

ISBN: (纸本)9798350311426

Compared with Faraday anomalous dispersion optical filter, the atom optical filter based on the Voigt effect can generate a stronger and more uniform magnetic field with a compact size of the magnet. The transmission characteristics of the Voigt anomalous dispersion optical filter (VADOF) are further investigated, and a transmission spectrum with ultra-low bandwidth immune to the cell temperature is constructed. Therefore, this optical filter has the potential to perform well in a complex environment, such as outdoor and out space. Importantly, the VADOF could be applied to a diode laser as a frequency-selective element, named "Voigt laser", contributing to better frequency stability. © 2023 IEEE.

关键词： diode laser Faraday anomalous dispersion optical filter (FADOF) Voigt anomalous dispersion optical filter (VADOF) Voigt laser

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High-resolution and High-rate Dual-comb FMCW Lidar with Coherent Comb Stitching

High-resolution and High-rate Dual-comb FMCW Lidar with Cohe...

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CLEO: Science and Innovations in CLEO 2024, CLEO: S and I 2024 - Part of Conference on Lasers and Electro-Optics

作者： Cao, Xianyi Wang, Long Li, Tianyi Cai, Minglu Wu, Guiling Chen, Jianping Wu, Kan Shanghai Institute for Advanced Communication and Data Science State Key Laboratory of Advanced Optical Communication Systems and Networks Department of Electronic Engineering Shanghai Jiao Tong University Shanghai200240 China

A dual-comb FMCW Lidar with coherent comb stitching (CCS) technique is firstly demonstrated. CCS can simultaneously achieve 65 GHz high frequency sweeping range, millimeter-level ranging resolution and 100 kHz high vo... 详细信息

关键词： Pulse amplitude modulation

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Versatile photonic molecule switch in multimode microresonators

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Light(Science & Applications) 2024年第3期13卷 498-509页

作者： Zihan Tao Bitao Shen Wencan Li Luwen Xing Haoyu Wang Yichen Wu Yuansheng Tao Yan Zhou Yandong He Chao Peng Haowen Shu Xingjun Wang State Key Laboratory of Advanced Optical Communications System and Networks School of ElectronicsPeking UniversityBeijing 100871China College of Engineering Peking UniversityBeijing 100871China School of Integrated Circuits Peking University100871 BejingChina Peking University Yangtze Delta Institute of Optoelectronics Nantong 226010China Frontiers Science Center for Nano-optoelectronics Peking UniversityBeijing 100871China Peng Cheng Laboratory Shenzhen 518055China

Harnessing optical supermode interaction to construct artificial photonic molecules has uncovered a series of fundamental optical phenomena analogous to atomic ***,the distinct energy levels and interactions in such two-level systems were provided by coupled *** reconfigurability is limited,as they often require delicate external field stimuli or mechanically altering the geometric *** highly specific approaches also limit potential ***,we propose a versatile on-chip photonic molecule in a multimode microring,utilizing a flexible regulation methodology to dynamically control the existence and interaction strength of spatial *** transition between single/multi-mode states enables the“switched-off/on”functionality of the photonic molecule,supporting wider generalized applications *** particular,“switched-on”state shows flexible and multidimensional mode splitting control in aspects of both coupling strength and phase difference,equivalent to the *** *** effect.“Switched-off”state allows for perfect low-loss single-mode transition(Qi~10 million)under an ultra-compact bend size(FSR~115 GHz)in a foundry-based silicon *** breaks the stereotyped image of the FSR-Q factor trade-off,enabling ultra-wideband and high-resolution millimeter-wave photonic *** demonstration provides a flexible and portable solution for the integrated photonic molecule system,extending its research scope from fundamental physics to real-world applications such as nonlinear optical signal processing and sixth-generation wireless communication.

关键词： switched multimode millimeter

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