Dr. Yining Yan Profile

Dr. Yining Yan

at Sichuan University

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Proceedings Article | 19 October 2016 Paper

Study of fuzzy adaptive PID controller on thermal frequency stabilizing laser with double longitudinal modes

Qingkai Mo, Tao Zhang, Yining Yan

Proceedings Volume 10153, 101530D (2016) https://doi.org/10.1117/12.2244590

KEYWORDS: Laser stabilization

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There are contradictions among speediness, anti-disturbance performance, and steady-state accuracy caused by traditional PID controller in the existing light source systems of thermal frequency stabilizing laser with double longitudinal modes. In this paper, a new kind of fuzzy adaptive PID controller was designed by combining fuzzy PID control technology and expert system to make frequency stabilizing system obtain the optimal performance. The experiments show that the frequency stability of the designed PID controller is similar to the existing PID controller (the magnitude of frequency stability is less than 10^-9 in constant temperature and 10^-7 in open air). But the preheating time is shortened obviously (from 10 minutes to 5 minutes) and the anti-disturbance capability is improved significantly (the recovery time needed after strong interference is reduced from 1 minute to 10 seconds).

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