Multi-species gas sensing using monolithic widely tuneable laser diodes
Citation:Phelan, R.; Lynch, M.; Donegan, J.F.; Weldon, V., Multi-species gas sensing using monolithic widely tuneable laser diodes, Proceedings of SPIE, Opto-Ireland 2005: Optical Sensing and Spectroscopy , Dublin, Ireland , 4th April, edited by Hugh J. Byrne, Elfed Lewis, Brian D. MacCraith, Enda McGlynn, James A. McLaughlin, Gerard D. O'Sullivan, Alan G. Ryder, James E. Walsh , 5826, SPIE, 2005, pp449 - 459
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Widely tuneable laser diodes operating in the 1520 ? ? ? 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.
Author: DONEGAN, JOHN FRANCIS
Type of material:Poster
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