Title :
Intra-cavity absorption sensor based on erbium-doped fiber laser
Author :
Ying Lu ; Baoqun Wu ; Xiaohui Huang ; Liangcheng Duan ; Congjing Hao ; Musideke, M. ; Jianquan Yao
Author_Institution :
Key Lab. of Opto-Electron. Inf. Technol. (Minist. of Educ.), Tianjin Univ., Tianjin, China
Abstract :
The sensitivity of power to relative cavity loss of the intra-cavity sensor based on erbium-doped fiber laser is investigated. Theoretical analysis and simulation show that the coupling ratio of coupler and the pump power have a great effect on sensitivity of ring intra-cavity sensor. And we have experimentally found that the sensitivity can be significantly enhanced as pump power approaches the threshold and the coupling ratio is higher.
Keywords :
erbium; fibre lasers; fibre optic sensors; gas sensors; laser cavity resonators; optical fibre couplers; optical fibre losses; optical pumping; ring lasers; coupler; coupling ratio; erbium doped fiber laser; intracavity absorption sensor; pump power approach; relative cavity loss; ring intracavity sensor; sensitivity; Absorption; Couplings; Laser excitation; Optical fiber couplers; Optical fiber sensors; Sensitivity;
Conference_Titel :
Intelligent Sensors, Sensor Networks and Information Processing, 2013 IEEE Eighth International Conference on
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4673-5499-8
DOI :
10.1109/ISSNIP.2013.6529759
