Atmospheric absorption spectroscopy using Tm: fiber sources around two microns

Pankaj Kadwani; Jeffrey Chia; Faleh Altal; Robert A. Sims; Christina Willis; Lawrence Shah; Dennis Killinger; Martin C. Richardson

doi:10.1117/12.875167

10 February 2011 Atmospheric absorption spectroscopy using Tm: fiber sources around two microns

Pankaj Kadwani, Jeffrey Chia, Faleh Altal, Robert A. Sims, Christina Willis, Lawrence Shah, Dennis Killinger, Martin C. Richardson

Author Affiliations +

Proceedings Volume 7924, Atmospheric and Oceanic Propagation of Electromagnetic Waves V; 79240L (2011) https://doi.org/10.1117/12.875167
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

We report on a thulium doped silica fiber ASE source for absorption spectroscopy of CO₂. The average spectral power of this source was 2.3-6.1 μW/nm. This low spectral power of this source posed limitation in the sensitivity of the system which was overcome by using an ultrashort pulsed Raman amplifier system with 50-125 μW/nm average spectral power. This system produced CO₂ sensitivity better than 300 ppm making measurement of CO₂ possible at standard atmospheric concentrations.

Citation Download Citation

Pankaj Kadwani, Jeffrey Chia, Faleh Altal, Robert A. Sims, Christina Willis, Lawrence Shah, Dennis Killinger, and Martin C. Richardson "Atmospheric absorption spectroscopy using Tm: fiber sources around two microns", Proc. SPIE 7924, Atmospheric and Oceanic Propagation of Electromagnetic Waves V, 79240L (10 February 2011); https://doi.org/10.1117/12.875167

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