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Proceedings Paper

Theoretical investigation on the effect of ASE noise for amplified fiber loop ring-down gas sensing
Author(s): Chunfu Cheng; Yan Zeng; Yiwen Ou; Jinye Zhang; Qinghua Lv; Jinrong Zhu; Hui Lv
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Paper Abstract

The effect of spontaneous emission (ASE) noise produced by the erbium-doped fiber amplifier (EDFA) on the performance of amplified fiber loop ring-down gas sensing systems is theoretically investigated. The results show that the EDFA placed after the gas cell with a smaller ASE noise can improve the measurement accuracy. The more narrower the noise equivalent optical bandwidth of the optical band pass filter following the EDFA is, the up shift of baseline of ring-down signal can be more effectively suppressed and thus improving the measurement accuracy. It is also found the longer ring-down time can be obtained by reducing the input power due to the smaller gain fluctuations of the EDFA.

Paper Details

Date Published: 25 October 2016
PDF: 8 pages
Proc. SPIE 10158, Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage, 101580A (25 October 2016); doi: 10.1117/12.2244593
Show Author Affiliations
Chunfu Cheng, Hubei Univ. of Technology (China)
Yan Zeng, Hubei Univ. of Technology (China)
Yiwen Ou, Wuchang Institute of Technology (China)
Jinye Zhang, Hubei Univ. of Technology (China)
Qinghua Lv, Hubei Univ. of Technology (China)
Jinrong Zhu, Hubei Univ. of Technology (China)
Hui Lv, Hubei Univ. of Technology (China)


Published in SPIE Proceedings Vol. 10158:
Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage

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