All-in-One BPSK/QPSK Switchable Transmission and Reception for Adaptive Free-Space Optical Communication Links

被引：1
|
作者：
Chen, Yaling [1 ,2 ]
Ming, Chengze [2 ,3 ]
Xie, Ke [2 ,3 ]
Gao, Shiming [2 ,3 ]
Jiang, Qingfang [4 ]
Liu, Zhi [5 ]
Yao, Haifeng [5 ]
Dong, Keyan [1 ]
机构：
[1] Changchun Univ Sci & Technol, Coll Optoelect Engn, Changchun 130022, Peoples R China
[2] Zhejiang Univ, Int Res Ctr Adv Photon, Ctr Opt & Electromagnet Res, State Key Lab Extreme Photon & Instrumentat, Hangzhou 310058, Peoples R China
[3] Zhejiang Univ, Ningbo Innovat Ctr, Ningbo 315100, Peoples R China
[4] Changchun Univ Sci & Technol, Sch Elect & Informat Engn, Changchun 130022, Peoples R China
[5] Changchun Univ Sci & Technol, Natl & Local Joint Engn Res Ctr Space Optoelect Te, Changchun 130022, Peoples R China
来源：
PHOTONICS | 2024年 / 11卷 / 04期
基金：
中国国家自然科学基金;
关键词：
free-space optical communication; modulation format switching; atmospheric turbulence; ATMOSPHERIC-TURBULENCE; PERFORMANCE;
D O I：
10.3390/photonics11040326
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Adaptive free-space optical (FSO) communication links have been extensively studied in order to adapt to variable atmospheric channel environments due to factors such as atmospheric turbulence. As a supporting technology, an all-in-one BPSK/QPSK switchable transmission and reception method is proposed and experimentally demonstrated for adaptive modulation format switching in FSO links. The transmission and reception of both modulation formats are realized based on the same IQ modulator and single-photodetector coherent receiver. Simulation and experimental results show that the QPSK signal has a power penalty of about 3-4 dB compared to the BPSK signal with a BER of about 1 x 10-3. The basis for format switching is given according to the various atmospheric channel conditions. The proposed method provides a flexible and efficient solution for variable FSO communication environments to improve their performance.
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页数：12
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