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Conference on Lasers and Electro-Optics Europe (CLEO EUROPE)

作者： Hongyi Zhang Liangjun Lu Jianping Cheu Linjie Zhou Department of Electronic Engineering State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong University Shanghai China SJTU-Pinghu Institute of Intelligent Optoelectronics Pinghu China

ISBN: (纸本)9798350345995

Soliton microcombs (SMCs), originating from the balance of cavity loss and gain as well as nonlinearity and dispersion, are formed in the micro-resonator [1]. Among them, the perfect soliton crystal (PSC) is a special soliton state with soliton pulses distributed evenly along the resonator circumference. The number of the PSCs corresponds to the comb line spacing [2]. Previously, a cascaded Bragg scattering process driven by an extra incident continuous wave (C.W.) laser was observed in a Kerr micro-resonator, which triggers the generation of idler frequency components for the dissipative solitons [3]. In this work, we investigate the PSC linear-wave scattering by injecting an extra probe laser. With a properly set probe laser, the comb spectrum is adjusted in the experiments.

关键词： Dispersion Lasers optical resonators Scattering Silicon nitride Solitons

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Enabling Technologies for Comprehensive optical Mobile Fronthaul Access Network

Enabling Technologies for Comprehensive Optical Mobile Front...

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optical Fiber communication (OFC) Conference

作者： Weisheng Hu Yixiao Zhu Longsheng Li Kuo Zhang Haiyun Xin Yan Fu Xin Miao State Key Laboratory of Advanced Optical Communication System and Networks Shanghai Jiao Tong University China

In this paper, we review the recent progress of our works on a comprehensive optical mobile fronthaul access network for 5G Era and beyond. Enabling technologies including A-RoF, CPRI, eCPRI and hybrid A/D-RoF are int... 详细信息

ISBN: (纸本)9781943580866

关键词： optical fibers 5G mobile communication optical fiber networks Proposals

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Parallel coherent LiDAR with low hardware requirements

Parallel coherent LiDAR with low hardware requirements

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Conference on Lasers and Electro-Optics (CLEO)

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

A high-performance parallel coherent LiDAR based on phase-coded subcarrier modulation with record-high imaging rate and high ranging precision is demonstrated, which also breaks through the high-hardware requirements ... 详细信息

ISBN: (纸本)9781957171258

关键词： Lidar Modulation Phase shift Range finding Three dimensional imaging Three dimensional sensing

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Observation of miniaturized bound states in the continuum with ultra-high quality factors

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Science Bulletin 2022年第4期67卷 359-366,M0003页

作者： Zihao Chen Xuefan Yin Jicheng Jin Zhao Zheng Zixuan Zhang Feifan Wang Li He Bo Zhen Chao Peng State Key Laboratory of Advanced Optical Communication Systems and Networks Department of Electronics&Frontiers Science Center for Nano-optoelectronicsPeking UniversityBeijing 100871China Department of Physics and Astronomy University of PennsylvaniaPhiladelphiaPA 19104USA Peng Cheng Laboratory Shenzhen 518055China

Light trapping is a constant pursuit in photonics because of its importance in science and *** mechanisms have been explored,including the use of mirrors made of materials or structures that forbid outgoing waves,and bound states in the continuum that are mirror-less but based on *** we report a compound method,combining lateral mirrors and bound states in the continuum in a cooperative way,to achieve a class of on-chip optical cavities that have high quality factors and small modal ***,light is trapped in the transverse direction by the photonic band gap of the lateral hetero-structure and confined in the vertical direction by the constellation of multiple bound states in the *** a result,unlike most bound states in the continuum found in photonic crystal slabs that are de-localized Bloch modes,we achieve light-trapping in all three dimensions and experimentally demonstrate quality factors as high as Q=1.09×10^(6)and modal volumes as low as V=17.74(λ_(0)/n)^(3)in the telecommunication *** further prove the robustness of our method through the statistical study of multiple fabricated *** work provides a new method of light trapping,which can find potential applications in photonic integration,nonlinear optics and quantum computing.

关键词： Bound state in the continuum Photonic crystal High-Q cavity Topological photonics

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Generation of Multi-Channel Co-axial Quasi-Perfect Vortex Electromagnetic Waves with Equal Divergence Radii Based on Aperture-Shared Metasurface

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IEEE Transactions on Antennas and Propagation 2025年

作者： Deng, Li Yang, Kaiqiao Yin, Kaiyue Chen, Jiawei Qu, Meijun Feng, Botao Beijing University of Posts and Telecommunications Beijing Laboratory of Advanced Information Networks Beijing Key Laboratory of Network System Architecture and Convergence Beijing100876 China Southeast University Institute of Electromagnetic Space State Key Laboratory of Millimeter Wave Nanjing211189 China Communication University of China School of Information and Communication Engineering Beijing Beijing100024 China Shenzhen University College of Electronics and Information Engineering Shenzhen518060 China

Vortex electromagnetic (EM) waves hold significant promise for next-generation wireless communication applications. However, their practical deployment is hindered by varying divergence characteristics across vortex modes with different mode numbers. To overcome this challenge and enable true spatial multiplexing of orbital angular momentum (OAM) waves, a dual-polarized shared-aperture metasurface is proposed. By leveraging both polarization and OAM multiplexing, quasi-perfect vortex (QPV) EM waves with co-axial beams and equal divergence radii are successfully generated at microwave frequencies. Initially, the properties of quasi-perfect vortex waves in the microwave band are analyzed, followed by the design of a dual-polarized metasurface unit. This unit integrates parasitic damping-coupled patches based on the traditional Jerusalem cross structure, providing polarization-independent control and approximately 360° phase-tuning capability. Furthermore, simulations validate the effectiveness of the dual-polarized single-mode metasurface design. Based on this, the concept is extended to a 4-channel multiplexing metasurface, operating at 15 GHz and capable of generating QPV waves. Finally, experimental results from the fabricated metasurface demonstrate the generation of QPV waves with OAM mode numbers 0, +2, +1, and -1, achieving simulated and measured OAM mode purities of 0.835 and 0.70, respectively. The experimental data closely aligns with simulations, confirming the effectiveness of the design. This study offers new insights into generating and applying perfect vortex EM waves, paving the way for high-capacity near-field wireless communication systems and advanced control of novel EM physical dimensions. © 1963-2012 IEEE.

关键词： Near field communication

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Digital Pre-distortion Based on Delta Sigma Modulation Assisted Look-up Table for optical Transmission

Digital Pre-distortion Based on Delta Sigma Modulation Assis...

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European Conference on optical communication (ECOC)

作者： Xiaobo Zeng Mengfan Fu Lilin Yi Weisheng Hu Qunbi Zhuge Department of Electronic Engineering State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong University Shanghai China

A delta-sigma modulation assisted look-up table (LUT) in sample for transceiver nonlinear impairment is proposed, and achieves a superior performance compared with the 3-symbol LUT (LUT-3). The table size is less than... 详细信息

ISBN: (数字)9781957171159

ISBN: (纸本)9781665475570

关键词： Sensitivity Europe Delta-sigma modulation Transceivers optical fiber communication Table lookup optical sensors

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Wavelength and Bandwidth Tunable Silicon Photonic Filter Over O+C+L Band

Wavelength and Bandwidth Tunable Silicon Photonic Filter Ove...

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Asia communications and Photonics Conference and Exhibition (ACP)

作者： Pei Zhang Zhenyu Zhao Yujia Zhang An He Xuhan Guo Yikai Su Department of Electronic Engineering State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong University Shanghai China

We propose and demonstrate a wavelength and bandwidth tunable silicon photonic filter over the O+C+L band using novel Mach-Zehnder interferometers and vernier microring resonators. All bands show ultra-high out-of-band extinction ratios over -35 dB. In C and L bands, the 3dB bandwidth can be tuned from 27.48 pm to 53.77 pm, with the total insertion loss varying from −2.31 dB to −11.27 dB. In the O band, the 3dB bandwidth varies from 4.74 pm to 23.4 pm, with the total insertion loss from −2.21 dB to −6.72 dB.

关键词： optical losses Mach-Zehnder interferometers Resonator filters Asia Bandwidth Insertion loss Silicon photonics

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Wideband Flat and Stable Supercontinuum from 1550nm to 1850nm Generated by ASE Pumping at C-band

Wideband Flat and Stable Supercontinuum from 1550nm to 1850n...

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Asia communications and Photonics Conference and Exhibition (ACP)

作者： Baining Ye Jiangbin Du Zhaonian Wang Zuyuan He Department of Electronic Engineering State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong University Shanghai China

Wideband flat and stable supercontinuum (SC) from 1550-to-1850 nm with 2.51-dB flatness is generated by CW ASE pumping. Improved spectroscopy precision was obtained for HCN absorption measurement by the proposed truly... 详细信息

关键词： Spectroscopy Absorption C-band Asia Erbium-doped fiber amplifiers Wideband Photonics

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Fourier Neural Operator Based Fibre Channel Modelling for optical Transmission

Fourier Neural Operator Based Fibre Channel Modelling for Op...

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European Conference on optical communication (ECOC)

作者： Qizhi Qiu Huazhi Lun Xiaomin Liu Lilin Yi Weisheng Hu Qunbi Zhuge Department of Electronic Engineering State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong University Shanghai China

We propose a Fourier Neural Operator based fibre channel modelling method with both time-domain and frequency-domain operators. The proposed method performs a high accuracy in the WDM long-haul transmission system.

ISBN: (数字)9781957171159

ISBN: (纸本)9781665475570

关键词： optical fibers Biological system modeling Frequency-domain analysis Europe Wavelength division multiplexing optical fiber communication Time-domain analysis

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Establishing the Relationship Between GMI and SNR in optical networks with Nonlinear Kerr Effect

Establishing the Relationship Between GMI and SNR in Optical...

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European Conference on optical communication (ECOC)

作者： Xueying Zhong Huazhi Lun Mengfan Fu Xiaomin Liu Lilin Yi Weisheng Hu Qunbi Zhuge Department of Electronic Engineering State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong University Shanghai China

We propose an artificial neural network (ANN) based algorithm to establish the mapping between generalized mutual information (GMI) and signal-to-noise ratio (SNR) in optical networks with nonlinear Kerr effect. Under... 详细信息

ISBN: (数字)9781957171159

ISBN: (纸本)9781665475570

关键词： Kerr effect Europe Artificial neural networks Receivers optical fiber networks Feature extraction Mutual information

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