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Proceedings Paper

Multi-species gas sensing using monolithic widely tuneable laser diodes
Author(s): R. Phelan; M. Lynch; J. F. Donegan; V. Weldon
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Paper Abstract

Widely tuneable laser diodes operating in the 1520 ≤ λ ≤ 1570 nm are characterised and compared for use as sources for tuneable laser diode gas absorption spectroscopy. Three gases hydrogen cyanide, ammonia and acetylene with overlapping absorption features within the 50 nm tuning range of the devices were targeted employing wavelength modulation spectroscopy with second harmonic detection.

Paper Details

Date Published: 3 June 2005
PDF: 11 pages
Proc. SPIE 5826, Opto-Ireland 2005: Optical Sensing and Spectroscopy, (3 June 2005); doi: 10.1117/12.605312
Show Author Affiliations
R. Phelan, Trinity College (Ireland)
M. Lynch, Trinity College (Ireland)
J. F. Donegan, Trinity College (Ireland)
V. Weldon, Trinity College (Ireland)

Published in SPIE Proceedings Vol. 5826:
Opto-Ireland 2005: Optical Sensing and Spectroscopy
Gerard D. O'Sullivan; Brian D. MacCraith; Hugh James Byrne; Enda McGlynn; Alan G. Ryder, Editor(s)

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