Title :
Ultra-short cavity distributed Bragg reflector Er-doped fiber laser for temperature-insensitive bending measurement
Author :
Liu, Weisheng ; Guo, Tuan ; Wang, Hongjun ; Chen, Da ; Wong, Chi-Lun Allan ; Tam, Hwa-Yaw ; Lu, Chao ; He, Sailing
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., Kowloon, China
Abstract :
We introduce a bending sensor by measuring the beat frequency shift of a DBR fiber laser. The polarization beat frequency of the DBR laser exhibits high sensitivity to fiber bending while immune to temperature change.
Keywords :
distributed Bragg reflector lasers; laser cavity resonators; optical fibre amplifiers; temperature measurement; beat frequency shift; temperature-insensitive bending measurement; ultra short cavity distributed Bragg reflector Er-doped fiber laser; Distributed Bragg reflectors; Erbium-doped fiber lasers; Fiber gratings; Fiber lasers; Frequency; Optical fiber polarization; Optical fiber sensors; Pump lasers; Temperature measurement; Temperature sensors;
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-890-2
Electronic_ISBN :
978-1-55752-890-2
