Sensitivity investigation of intra-cavity absorption gas sensors based on erbium-doped fiber ring lasers

Tie-gen Liu; Kun Liu; Jun-feng Jiang; Yi-mo Zhang

doi:10.1117/12.916042

30 January 2012 Sensitivity investigation of intra-cavity absorption gas sensors based on erbium-doped fiber ring lasers

Tie-gen Liu, Kun Liu, Jun-feng Jiang, Yi-mo Zhang

Author Affiliations +

Proceedings Volume 8351, Third Asia Pacific Optical Sensors Conference; 83511W (2012) https://doi.org/10.1117/12.916042
Event: Asia Pacific Optical Sensors Conference, 2012, Sydney, Australia

Abstract

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.

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Tie-gen Liu, Kun Liu, Jun-feng Jiang, and Yi-mo Zhang "Sensitivity investigation of intra-cavity absorption gas sensors based on erbium-doped fiber ring lasers", Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 83511W (30 January 2012); https://doi.org/10.1117/12.916042

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KEYWORDS

Signal attenuation

Absorption

Signal to noise ratio

Fiber lasers

Polonium

Gas sensors

Signal detection

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