Title :
Fiber laser based multiplexed sensing system
Author :
Luo, Jianhua ; Liu, Eo ; Zhou, Haibin ; Zhang, Hao ; Yan, Shaolin
Author_Institution :
Coll. of Inf. Tech. Sci., Nankai Univ., Tianjin, China
Abstract :
We propose a laser sensing system based on beat frequency demodulation. The sensor uses a single-longitudinal-mode distributed Bragg reflector (DBR) fiber laser as sensing element. This laser sensor has great multiplexing capability due to its wide free spectral range. Wavelength-Division-Multiplex (WDM) and Frequency-Division-Multiplex (FDM) techniques were studied. The sensing system has high sensitivity and multiplexing channels. It will be widely applied in health monitoring.
Keywords :
Bragg gratings; distributed Bragg reflectors; fibre lasers; beat frequency demodulation; distributed Bragg reflector fiber laser; fiber laser based multiplexed sensing system; Birefringence; Distributed Bragg reflectors; Fiber lasers; Frequency; Gratings; Optical fiber communication; Optical fiber polarization; Optical pumping; Optical resonators; Wavelength division multiplexing; distributed Bragg reflector (DBR); multiplexed sensing system; orthogonal polarization; single-longitudinal-mode;
Conference_Titel :
Optical Fiber Sensors Conference, 2008. APOS '08. 1st Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-2131-2
Electronic_ISBN :
978-1-4244-2132-9
DOI :
10.1109/APOS.2008.5226296
