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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 19 — Sep. 12, 2011
  • pp: 18190–18198

Compact and multiplexible hydrogen gas sensor assisted by self-referencing technique

Kwan Seob Park, Young Ho Kim, Joo Beom Eom, Seong Jun Park, Min-Su Park, Jae-Hyeong Jang, and Byeong Ha Lee  »View Author Affiliations

Optics Express, Vol. 19, Issue 19, pp. 18190-18198 (2011)

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We have experimentally implemented a multiplexible but compact fiber sensor system suitable for multipoint sensing of hydrogen gas leakage. By making dual cavities along an optical fiber and coating a palladium film only at the end of the fiber tip, the measurement errors induced by the optical source power fluctuation and the mechanical perturbation in the lead fiber could be compensated. By adjusting the length of the dual-cavity, the capability of multiplexing several hydrogen sensors could be achieved. The experiment results showed that the response speed of the sensor was increasing with temperature, but at a low temperature the response amplitude became large.

© 2011 OSA

OCIS Codes
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot

ToC Category:

Original Manuscript: June 22, 2011
Revised Manuscript: August 6, 2011
Manuscript Accepted: August 22, 2011
Published: September 1, 2011

Kwan Seob Park, Young Ho Kim, Joo Beom Eom, Seong Jun Park, Min-Su Park, Jae-Hyeong Jang, and Byeong Ha Lee, "Compact and multiplexible hydrogen gas sensor assisted by self-referencing technique," Opt. Express 19, 18190-18198 (2011)

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