The ultra-weak feedback effect of DBR fiber laser and its sensing applications

Quan Chai; Xingliang Li; Jianzhong Zhang; QianQian Hao; Qi Li; Ping Lu; Weimin Sun; Libo Yuan; Gangding Peng

doi:10.1117/12.868502

9 November 2010 The ultra-weak feedback effect of DBR fiber laser and its sensing applications

Quan Chai, Xingliang Li, Jianzhong Zhang, QianQian Hao, Qi Li, Ping Lu, Weimin Sun, Libo Yuan, Gangding Peng

Proceedings Volume 7853, Advanced Sensor Systems and Applications IV; 78531H (2010) https://doi.org/10.1117/12.868502
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

We investigate an ultra-weak feedback effect of DBR fiber lasers based on the steady-state rate equations. The ultra-weak-feedback effects of DBR fiber lasers are introduced by the fiber Rayleigh scattering and the scattering of the fiber splicing point. The output powers of the DBR fiber lasers are modulated when their feedbacks are modulated. A simple vibration sensing scheme based on this effect is proposed and demonstrated. The optimized design of the sensing scheme is discussed at last.

Citation Download Citation

Quan Chai, Xingliang Li, Jianzhong Zhang, QianQian Hao, Qi Li, Ping Lu, Weimin Sun, Libo Yuan, and Gangding Peng "The ultra-weak feedback effect of DBR fiber laser and its sensing applications", Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78531H (9 November 2010); https://doi.org/10.1117/12.868502

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