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Proceedings Paper

Frequency stabilization of an extended-cavity semiconductor laser by molecule saturation absorption frequency stabilization and self-adapted control
Author(s): Jiangong Li; Jie Jin; Xiang Ma; Qi Yan
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Paper 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.

Paper Details

Date Published: 20 January 2005
PDF: 5 pages
Proc. SPIE 5628, Semiconductor Lasers and Applications II, (20 January 2005); doi: 10.1117/12.575368
Show Author Affiliations
Jiangong Li, Tianjin Univ. (China)
Jie Jin, Tianjin Univ. (China)
Xiang Ma, Tianjin Univ. (China)
Qi Yan, Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 5628:
Semiconductor Lasers and Applications II
Jian-quan Yao; Yung Jui Chen; Seok Lee, Editor(s)

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