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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 42, Iss. 27 — Sep. 20, 2003
  • pp: 5413–5417

Fiber-optic cavity sensing of hydrogen diffusion

Daniel E. Vogler, Michel G. Müller, and Markus W. Sigrist  »View Author Affiliations


Applied Optics, Vol. 42, Issue 27, pp. 5413-5417 (2003)
http://dx.doi.org/10.1364/AO.42.005413


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Abstract

A novel type of fiber-optic cavity sensor for hydrogen diffusion into and out of fibers is presented. The sensor is an implementation of a cavity ringdown scheme in a silica-based single-mode fiber that has been exposed to gaseous hydrogen at normal pressure. The measured ringdown times during the H2 diffusion show good agreement with a theoretical diffusion model. This model allows the determination of the diffusion coefficient of hydrogen in silica, resulting in D = (3.02 ± 0.07) × 10-15 m2/s at 30 °C.

© 2003 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(230.5750) Optical devices : Resonators
(300.1030) Spectroscopy : Absorption

History
Original Manuscript: January 24, 2003
Revised Manuscript: May 20, 2003
Published: September 20, 2003

Citation
Daniel E. Vogler, Michel G. Müller, and Markus W. Sigrist, "Fiber-optic cavity sensing of hydrogen diffusion," Appl. Opt. 42, 5413-5417 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-27-5413

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