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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 14, Iss. 1 — Mar. 1, 2010
  • pp: 14–21

Fiber Ring Laser Intra-cavity Absorption Spectroscopy for Gas Sensing: Analysis and Experiment

Mo Li, Kun Liu, Wencai Jing, and Gang-Ding Peng  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 14, Issue 1, pp. 14-21 (2010)


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Abstract

Fiber ring laser based intra-cavity absorption spectroscopic sensor has great potential for high sensitivity gas detection. Using the rate equations and propagation equations, we investigated theoretically factors that affect the sensitivity of such fiber ring laser sensors and determined the optimal design parameters and conditions for significant enhancement of the system sensitivity. Experiments have been conducted to determine the sensitivity enhancement performance. The results showed a factor of 25 ~ 30 in sensitivity enhancement in the experimental system, agreeing well with the theoretical expectations. Experiments on acetylene detection have also been carried out and the results showed that the ring cavity significantly increases the signal absorption and that high sensitivity can be obtained for gas detection.

© 2010 Optical Society of Korea

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors

History
Original Manuscript: February 23, 2010
Revised Manuscript: March 8, 2010
Manuscript Accepted: March 8, 2010
Published: March 25, 2010

Citation
Mo Li, Kun Liu, Wencai Jing, and Gang-Ding Peng, "Fiber Ring Laser Intra-cavity Absorption Spectroscopy for Gas Sensing: Analysis and Experiment," J. Opt. Soc. Korea 14, 14-21 (2010)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-14-1-14


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