Optical Communication Technology, Volume. 49, Issue 4, 97(2025)
Time delay parameter measurement method based on time-division multiplexed fiber optic detector array
To improve the measurement accuracy and efficiency of time delay parameters in time-division multiplexed fiber optic detector arrays, a time delay parameter measurement method based on a time-division multiplexed fiber optic detector array is proposed. This method constructs a data matrix to extract variance vectors, performs correlation operations using a pulse template function, identifies the positions of interference pulses, and thereby calculates the time delay parameters. Experiments were conducted on an 8-channel time-division multiplexed array to verify the method's reliability under different signal-to-noise ratio(SNR)conditions. The results show that when the SNR is above 12 dB, the measurement accuracy reaches 100%. When the SNR drops to 7 dB, the success rate remains over 98%. Even at an extremely low SNR of -3 dB, the method maintains a correct rate above 65%.
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DONG Xiaowei, TIAN Zhihua, LI Jiaqi, LIU Fei, MA Junxiu, LI Yiqiang, WANG Zhi. Time delay parameter measurement method based on time-division multiplexed fiber optic detector array[J]. Optical Communication Technology, 2025, 49(4): 97
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Received: Oct. 8, 2024
Accepted: Sep. 15, 2025
Published Online: Sep. 15, 2025
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