Results 11 to 20 of about 2,425 (212)

An LDPC Encoder Architecture With Up to 47.5 Gbps Throughput for DVB-S2/S2X Standards

IEEE Access, 2022
Low-Density Parity-Check (LDPC) code is a type of forward error-correction code with excellent performance, and has been widely used in many modern communication standards. The second-generation satellite broadcasting standard (DVB-S2) and its extension (
Decai Liu, Yanfei Luo, Yunfeng Li, Zhijie Wang, Zhengxuan Li, Qianwu Zhang, Junjie Zhang, Yingchun Li   +7 more
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Flexible Multi-Thread Dynamic Bandwidth Allocation Algorithm in VPONs Based on LR WDM/TDM PON

IEEE Access, 2020
With the smooth upgrade of the access network, multiple tuning-time devices will coexist in the long-reach access network, and the subsequent problems of high round-trip time (RTT) and optical network unit (ONU) tuning delay need to be solved urgently ...
Lijuan Wu, Chaoqin Gan, Xingdi Wang, Zhongsen Xu, Jianqiang Hui   +4 more
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Low-Complexity Sampling Frequency Offset Estimation and Compensation Scheme for OFDM-Based UWOC System

Photonics, 2022
In this paper, a simple sampling frequency offset (SFO) estimation and compensation scheme based on two phase-conjugated pilots is proposed and experimentally demonstrated in an OFDM-based underwater wireless optical communication (UWOC) system.
Hu Li, Tianyang Chen, Zhijie Wang, Bingyao Cao, Yingchun Li, Junjie Zhang   +5 more
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An Improved End-to-End Autoencoder Based on Reinforcement Learning by Using Decision Tree for Optical Transceivers

Micromachines, 2021
In this paper, an improved end-to-end autoencoder based on reinforcement learning by using Decision Tree for optical transceivers is proposed and experimentally demonstrated.
Qianwu Zhang, Zicong Wang, Shuaihang Duan, Bingyao Cao, Yating Wu, Jian Chen, Hongbo Zhang, Min Wang   +7 more
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Bragg gratings and BIO-Bragg-gratings in tapered optical fibers [PDF]

EPJ Web of Conferences, 2022
Tapered optical fibres are well-established devices for different applications, in order to exploit nonlinear effects, manage dispersion, excite azimuthal resonances in microresonators (so-called Whispering Gallery Modes).
Delgado-Pinar Martina, Díez Antonio, Cruz Jose Luis, Andrés Miguel V.   +3 more
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Seven-Ring-Core Erbium-Doped Fiber for OAM-MDM Amplification

IEEE Photonics Journal, 2023
Orbital angular momentum (OAM) mode division multiplexing (MDM) amplification in a seven-ring-core erbium-doped fiber (7-RC-EDF) has been experimentally demonstrated, in which the 1st–4th order OAM modes within each core of the 7-RC-EDF can be ...
Qi Jiang, Xiaobo Xue, Fufei Pang, Liang Zhang, Mengshi Zhu, Heiming Wei, Cheng Du, Wei Li, Tingyun Wang   +8 more
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Revolver Hollow Core Optical Fibers

Fibers, 2018
Revolver optical fibers (RF) are special type of hollow-core optical fibers with negative curvature of the core-cladding boundary and with cladding that is formed by a one ring layer of capillaries. The physical mechanisms contributing to the waveguiding
Igor A. Bufetov, Alexey F. Kosolapov, Andrey D. Pryamikov, Alexey V. Gladyshev, Anton N. Kolyadin, Alexander A. Krylov, Yury P. Yatsenko, Alexander S. Biriukov   +7 more
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Recent progress of dynamic mode manipulation via acousto-optic interactions in few-mode fiber lasers: mechanism, device and applications

Nanophotonics, 2020
The burgeoning advances of spatial mode conversion in few-mode fibers emerge as the investigative hotspot in novel structured light manipulation, in that, high-order modes possess a novel fundamental signature of various intensity profiles and unique ...
Lu Jiafeng, Shi Fan, Xu Jiangtao, Meng Linghao, Zhang Longkun, Cheng Peikang, Zhou Xuan, Pang Fufei, Zeng Xianglong   +8 more
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Link-Blockage Model and AP-Placement Scheme for No-Blockage Link between AGV and AP in Logistics–Warehousing VLC Network

Photonics, 2022
In this paper, the blockage problem of the optical link between AGV (autonomous ground vehicles) and AP (access point) in the logistics–warehousing VLC (visible light communication) network is analyzed.
Guiyu Gong, Chaoqin Gan, Yong Fang, Yifan Zhu, Qiuyue Hu   +4 more
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Microfiber evanescent-field photothermal gas detection using acoustic-induced mode-dependent frequency shift

Nanophotonics, 2023
In this study, we experimentally showcase the microfiber evanescent-field photothermal gas detection by exploiting all-fiber MHz-level frequency shift scheme. Based on the acousto-optic interaction effect, the low-frequency shifts of 0.9 MHz and 1.83 MHz
Zhu Yi, Guo Anbo, Xu Jiangtao, Zhang Zhengwei, Pang Fufei, Zhang Weijian, Zeng Xianglong, Sun Jianfeng   +7 more
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