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Volume 11
Issue 4
10.3390/photonics11040326
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Article

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

by
Yaling Chen
1,2,
Chengze Ming
2,3,
Ke Xie
2,3,
Shiming Gao
2,3,*,
Qingfang Jiang
4,
Zhi Liu
5,
Haifeng Yao
5 and
Keyan Dong
1
1
College of Optoelectronic Engineering, Changchun University of Science and Technology, Changchun 130022, China
2
Centre for Optical and Electromagnetic Research, State Key Laboratory of Extreme Photonics and Instrumentation, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310058, China
3
Ningbo Innovation Center, Zhejiang University, Ningbo 315100, China
4
School of Electronics and Information Engineering, Changchun University of Science and Technology, Changchun 130022, China
5
National and Local Joint Engineering Research Center of Space Optoelectronic Technology, Changchun University of Science and Technology, Changchun 130022, China
*
Author to whom correspondence should be addressed.
Photonics 2024, 11(4), 326; https://doi.org/10.3390/photonics11040326
Submission received: 28 February 2024 / Revised: 23 March 2024 / Accepted: 25 March 2024 / Published: 30 March 2024
(This article belongs to the Special Issue Free-Space Optical Communication and Networking Technology)
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Abstract

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 × 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.
Keywords: free-space optical communication; modulation format switching; atmospheric turbulence free-space optical communication; modulation format switching; atmospheric turbulence

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MDPI and ACS Style

Chen, Y.; Ming, C.; Xie, K.; Gao, S.; Jiang, Q.; Liu, Z.; Yao, H.; Dong, K. All-in-One BPSK/QPSK Switchable Transmission and Reception for Adaptive Free-Space Optical Communication Links. Photonics 2024, 11, 326. https://doi.org/10.3390/photonics11040326

AMA Style

Chen Y, Ming C, Xie K, Gao S, Jiang Q, Liu Z, Yao H, Dong K. All-in-One BPSK/QPSK Switchable Transmission and Reception for Adaptive Free-Space Optical Communication Links. Photonics. 2024; 11(4):326. https://doi.org/10.3390/photonics11040326

Chicago/Turabian Style

Chen, Yaling, Chengze Ming, Ke Xie, Shiming Gao, Qingfang Jiang, Zhi Liu, Haifeng Yao, and Keyan Dong. 2024. "All-in-One BPSK/QPSK Switchable Transmission and Reception for Adaptive Free-Space Optical Communication Links" Photonics 11, no. 4: 326. https://doi.org/10.3390/photonics11040326

APA Style

Chen, Y., Ming, C., Xie, K., Gao, S., Jiang, Q., Liu, Z., Yao, H., & Dong, K. (2024). All-in-One BPSK/QPSK Switchable Transmission and Reception for Adaptive Free-Space Optical Communication Links. Photonics, 11(4), 326. https://doi.org/10.3390/photonics11040326

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