Frequency stabilization of an extended-cavity semiconductor laser by molecule saturation absorption frequency stabilization and self-adapted control

Jiangong Li; Jie Jin; Xiang Ma; Qi Yan

doi:10.1117/12.575368

20 January 2005 Frequency stabilization of an extended-cavity semiconductor laser by molecule saturation absorption frequency stabilization and self-adapted control

Jiangong Li, Jie Jin, Xiang Ma, Qi Yan

Author Affiliations +

Proceedings Volume 5628, Semiconductor Lasers and Applications II; (2005) https://doi.org/10.1117/12.575368
Event: Photonics Asia, 2004, Beijing, China

Abstract

Frequency stabilization of laser diodes is of vital importance for the exploitation of optical frequency-division multiplexing coherent transmission systems and high-resolution optical measurement application. The research of frequency standard in 1.5μm region becomes one of hot orientations in optical communication area. The molecules absorption frequency stabilization technology of Fibre Bragg Grating external cavity laser diode (FBG ECLD) is studied intensively. To overcome the shortcoming of traditional PID control, self-organized and self-adapted algorithm based on predictive estimate modelling is used. The algorithm adopts indirectness arithmetic, which estimates and improves on the modelling according to a suitable learning speed and gains perfect control effects. The algorithm which is adopted in embedded system can achieve high-resolution frequency stabilization within 5min warm-up without manual work.

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Jiangong Li, Jie Jin, Xiang Ma, and Qi Yan "Frequency stabilization of an extended-cavity semiconductor laser by molecule saturation absorption frequency stabilization and self-adapted control", Proc. SPIE 5628, Semiconductor Lasers and Applications II, (20 January 2005); https://doi.org/10.1117/12.575368

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