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Proceedings Paper

Tunable and efficient diode-pumped Tm3+-doped fluoride fiber laser for hydrocarbon gas sensing
Author(s): Fergal J. McAleavey; Brian D. MacCraith; James O'Gorman; John Hegarty
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Paper Abstract

The operation of an efficient cw thulium-doped fiber laser emitting at wavelength, lambda equals 2.31 micrometer is reported. The operation of the fiber laser is optimized with a view to producing a small and efficient laser source for optical absorption based gas sensing. A 2 mW output power combined with a high slope efficiency make this fiber laser a useful source for sensing spectroscopic based hydrocarbon gases which absorb at lambda equals 2.3 micrometer. A lower limit of detection of 1000 ppm meters for methane is routinely demonstrated using an unoptimized laser system. The tunability of the fiber laser has also been investigated in order to target specific hydrocarbon absorption features.

Paper Details

Date Published: 10 December 1996
PDF: 11 pages
Proc. SPIE 2836, Chemical, Biochemical, and Environmental Fiber Sensors VIII, (10 December 1996); doi: 10.1117/12.260604
Show Author Affiliations
Fergal J. McAleavey, Trinity College (Ireland)
Brian D. MacCraith, Dublin City Univ. (Ireland)
James O'Gorman, Trinity College (Ireland)
John Hegarty, Trinity College (Ireland)

Published in SPIE Proceedings Vol. 2836:
Chemical, Biochemical, and Environmental Fiber Sensors VIII
Robert A. Lieberman, Editor(s)

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