Optical Communication Technology, Volume. 49, Issue 4, 68(2025)
Design and verification of short-range laser communication system under multi-degree-of-freedom coupled vibration environment
To address the high-reliability communication requirements between commercial spacecraft modules under extreme vibration conditions, this paper proposes a close-range laser communication system resistant to multi-degree-of-freedom coupled vibrations. By employing a composite optical path compensation structure, a large divergence angle optical system, and a deep learning-based adaptive control algorithm, the system effectively resolves technical challenges such as optical component defor-mation and optical path instability caused by multi-degree-of-freedom vibrations. The experimental results indicate that, even under extreme operating conditions involving a 20° rotation, a communication distance of 200 mm, and a 10 mm offset, the system maintains stable communication performance with a received power fluctuation of less than 2 dBm. Furthermore, under the most severe conditions, where both a 10 mm offset and a 20° rotation coexist at a communication distance of 200 mm, the received power remains stable above -10.84 dBm.
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HE Xiaolei, WANG Zhen, QIAN Yang, SU Ruizhi, QIU Cheng. Design and verification of short-range laser communication system under multi-degree-of-freedom coupled vibration environment[J]. Optical Communication Technology, 2025, 49(4): 68
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Received: Mar. 18, 2025
Accepted: Sep. 15, 2025
Published Online: Sep. 15, 2025
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