Simultaneous turbulence mitigation and channel demultiplexing for two 100 Gbit/s orbital-angular-momentum multiplexed beams by adaptive wavefront shaping and diffusing

Zhang Runzhou; Song Hao; Zhao Zhe; Song Haoqian; Du Jing; Liu Cong; Pang Kai; Li Long; Zhou Huibin; Willner Ari N.; Almaiman Ahmed; Zhou Yiyu; Boyd Robert W.; Lynn Brittany; Bock Robert; Tur Moshe; Willner Alan E.

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Simultaneous turbulence mitigation and channel demultiplexing for two 100 Gbit/s orbital-angular-momentum multiplexed beams by adaptive wavefront shaping and diffusing

机译：通过自适应波前塑造和扩散的两个100 Gbit / S轨道角动量多路复用梁同时湍流缓解和频道解复用

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We experimentally demonstrate simultaneous turbulence mitigation and channel demultiplexing in a 200 Gbit/s orbital-angular-momentum (OAM) multiplexed link by adaptive wavefront shaping and diffusing (WSD) the light beams. Different realizations of two emulated turbulence strengths (the Fried parameter r(0) = 0.4, 1.0 mm) are mitigated. The experimental results show the following. (1) Crosstalk between OAM l = +1 and l = -1 modes can be reduced by >10.0 and >5.8 dB, respectively, under the weaker turbulence (r(0) = 1.0 mm); crosstalk is further improved by >17.7 and >19.4 dB, respectively, under most realizations in the stronger turbulence (r(0) = 0.4 mm). (2) The optical signal-to-noise ratio penalties for the bit error rate performance are measured to be similar to 0.7 and similar to 1.6 dB under weaker turbulence, while measured to be similar to 3.2 and similar to 1.8 dB under stronger turbulence for OAM l = +1 and l = -1 mode, respectively. (C) 2020 Optical Society of America

机译：我们通过自适应波前整形和扩散（WSD）光束在200Gbit / s轨道角动量（OAM）多路复用链路中同时展示同时湍流缓解和沟道复用。减轻了两种模拟湍流强度的不同实现（油炸参数R（0）= 0.4,1.0mm）。实验结果表明以下。（1）OAM L = +1和L = -1模式之间的串扰分别可以分别减少> 10.0和> 5.8dB，在弱湍流（R（0）= 1.0mm）下; 在更强的湍流（R（0）= 0.4mm）中，分别在> 17.7和> 19.4dB中进一步改善了串扰。（2）测量对误码率性能的光学信噪比损失，以与较弱的湍流相似，类似于1.6dB，同时测量与3.2相似，并且在更强的湍流下类似于1.8dB。 OAM L = +1和L = -1模式。（c）2020美国光学学会

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来源
《Optics Letters》 |2020年第3期|共4页
作者
Zhang Runzhou; Song Hao; Zhao Zhe; Song Haoqian; Du Jing; Liu Cong; Pang Kai; Li Long; Zhou Huibin; Willner Ari N.; Almaiman Ahmed; Zhou Yiyu; Boyd Robert W.; Lynn Brittany; Bock Robert; Tur Moshe; Willner Alan E.;
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Univ Southern Calif Dept Elect Engn Los Angeles CA 90089 USA;

Univ Southern Calif Dept Elect Engn Los Angeles CA 90089 USA;

Univ Southern Calif Dept Elect Engn Los Angeles CA 90089 USA;

Univ Southern Calif Dept Elect Engn Los Angeles CA 90089 USA;

Univ Southern Calif Dept Elect Engn Los Angeles CA 90089 USA;

Univ Southern Calif Dept Elect Engn Los Angeles CA 90089 USA;

Univ Southern Calif Dept Elect Engn Los Angeles CA 90089 USA;

Univ Southern Calif Dept Elect Engn Los Angeles CA 90089 USA;

Univ Southern Calif Dept Elect Engn Los Angeles CA 90089 USA;

Univ Southern Calif Dept Elect Engn Los Angeles CA 90089 USA;

Univ Southern Calif Dept Elect Engn Los Angeles CA 90089 USA;

Univ Rochester Inst Opt Rochester NY 14627 USA;

Univ Rochester Inst Opt Rochester NY 14627 USA;

Pacific Space &

Naval Warfare Syst Ctr San Diego CA 92152 USA;

R DEX Syst Marietta GA 30068 USA;

Tel Aviv Univ Sch Elect Engn IL-69978 Ramat Aviv Israel;

Univ Southern Calif Dept Elect Engn Los Angeles CA 90089 USA;

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正文语种 eng
中图分类计量学;光学;
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1. Simultaneous turbulence mitigation and channel demultiplexing for two 100 Gbit/s orbital-angular-momentum multiplexed beams by adaptive wavefront shaping and diffusing [J] . Zhang Runzhou, Song Hao, Zhao Zhe, Optics Letters . 2020,第3期

机译：通过自适应波前塑造和扩散的两个100 Gbit / S轨道角动量多路复用梁同时湍流缓解和频道解复用
2. Experimental Mitigation of Atmospheric Turbulence Effect Using Pre-Signal Combining for Uni- and Bi-Directional Free-Space Optical Links With Two 100-Gbit/s OAM-Multiplexed Channels [J] . Song Haoqian, Song Hao, Zhang Runzhou, Ecological restoration . 2020,第1期

机译：用两种100-Gbit / s OAM多路复用通道的单向和双向自由空间光学链路的预发信号组合使用预发信号的实验缓解
3. Atmospheric turbulence mitigation using spatial mode multiplexing and modified pulse position modulation in hybrid RF/FSO orbital-angular-momentum multiplexed based on MIMO wireless communications system [J] . Yousif Bedir B., Elsayed Ebrahim Eld, Alzalabani Mahmoud M. Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter . 2019,第期

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4. Demonstration of Independent Turbulence Mitigation of Two 100-Gbit/s QPSK Orbital-Angular-Momentum Multiplexed Beams using Wavefront Shaping and Controlled Scattering [C] . Runzhou Zhang, Hao Song, Zhe Zhao, Optical Fiber Communications Conference and Exhibition . 2019

机译：使用波前成形和控制散射论证两个100 Gbit / s QPSK轨道角动量复用光束的独立湍流缓解
5. Single-End Adaptive Optics Compensation for Emulated Turbulence in a Bi-Directional 10-Mbit/s per Channel Free-Space Quantum Communication Link Using Orbital-Angular-Momentum Encoding [O] . Cong Liu, Kai Pang, Zhe Zhao, 2019

机译：使用轨道角动量编码在每通道双向10 Mbit / s自由空间量子通信链路中模拟湍流的单端自适应光学补偿
6. Simultaneous Pre-and Post-Turbulence Compensation of Multiple Orbital-Angular-Momentum 100-Gbit/s Data Channels in a Bidirectional Link Using a Single Adaptive-Optics System [O] . Ren Yongxiong, Huang Hao, Xie Guodong, 2013

机译：使用单个自适应光学系统在双向链路中同时进行多个轨道 - 角动量100-Gbit / s数据通道的前后湍流补偿

Simultaneous turbulence mitigation and channel demultiplexing for two 100 Gbit/s orbital-angular-momentum multiplexed beams by adaptive wavefront shaping and diffusing

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