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

fYear

2008

fDate

7-9 Nov. 2008

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/APOS.2008.5226296

Filename

5226296