Title :
Composite cavity fiber laser sensor based on feedback modulation
Author :
Zhang, Jianzhong ; Chai, Quan ; Li, Xingliang ; Hao, Qianqian ; Li, Qi ; Sun, Weimin ; Yuan, Libo ; Lu, Ping ; Peng, G.D.
Author_Institution :
Harbin Eng. Univ., Harbin, China
Abstract :
We proposed a novel intensity modulation based composite cavity optical fiber laser (CCFL) sensor, which is suitable for the vibration measurement. The intensity modulation of the CCFL is caused by the modulation of the weak feedback of the CCFL. The weak feedback of the CCFL is based on the end face reflection and the Rayleigh scattering of optical fiber. An acoustic measurement of the CCFL sensor in anechoic water pool is demonstrated to prove that the simple sensing scheme is feasible.
Keywords :
Rayleigh scattering; acoustic measurement; fibre lasers; fibre optic sensors; intensity modulation; laser feedback; vibration measurement; Rayleigh scattering; acoustic measurement; anechoic water pool; composite cavity optical fiber laser sensor; face reflection; feedback modulation; intensity modulation; vibration measurement;
Conference_Titel :
Sensors, 2010 IEEE
Conference_Location :
Kona, HI
Print_ISBN :
978-1-4244-8170-5
Electronic_ISBN :
1930-0395
DOI :
10.1109/ICSENS.2010.5689913
