Sensitivity Investigation of Intra-Cavity Absorption Gas Sensors based on Erbium-Doped Fiber Ring Lasers

被引:0
|
作者
Liu, Tie-gen [1 ]
Liu, Kun [1 ]
Jiang, Jun-feng [1 ]
Zhang, Yi-mo [1 ]
机构
[1] Tianjin Univ, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China
来源
THIRD ASIA PACIFIC OPTICAL SENSORS CONFERENCE | 2012年 / 8351卷
关键词
Intra-cavity; Fiber ring lasers; Gas sensing; Sensitivity;
D O I
10.1117/12.916042
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The sensitivity is an important issue for intra-cavity absorption gas sensors (ICAGS). In this paper, the ICAGS based on erbium-doped fiber ring lasers (EDFRL) are modeled using propagation equations, from which the expressions of the signal-to-noise ratio (SNR) and the sensitivity of the system are deduced. The influence of the pump power and the total attenuation of the system on the performance of the ICAGS are simulated theoretically and measured experimentally. The absorption signal of acetylene is detected by adjusting the state of the system. And concentration calibration of acetylene is realized finally.
引用
收藏
页数:8
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