Performance improvements of widely tunable lasers for multi gas species detection and analysis

Neil Ryan; David McDonald; Adrian Lavin

doi:10.1117/12.605392

3 June 2005 Performance improvements of widely tunable lasers for multi gas species detection and analysis

Neil Ryan, David McDonald, Adrian Lavin

Proceedings Volume 5826, Opto-Ireland 2005: Optical Sensing and Spectroscopy; (2005) https://doi.org/10.1117/12.605392
Event: OPTO-Ireland, 2005, Dublin, Ireland

Abstract

Widely tunable lasers support certain characteristics which out perform DFB technology for the sensing of gas species in the NIR spectral region. Reduced frequency tuning variation and almost zero residual amplitude modulation (RAM) are investigated. The current report illustrates how 18 individual gas absorption lines can be interrogated using a single laser source over a 40nm wavelength range, where RAM and FM non-linearity never exceed 5% and 13 % respectively. Comparison with DFB technology is made.

Citation Download Citation

Neil Ryan, David McDonald, and Adrian Lavin "Performance improvements of widely tunable lasers for multi gas species detection and analysis", Proc. SPIE 5826, Opto-Ireland 2005: Optical Sensing and Spectroscopy, (3 June 2005); https://doi.org/10.1117/12.605392

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