Atmospheric absorption spectroscopy using Tm: fiber sources around two microns

Details Atmospheric absorption spectroscopy using Tm: fiber sources around two microns Atmospheric absorption spectroscopy using Tm: fiber sources around two microns

Feb 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011spie.7924e..14k&link_type=abstract

Atmospheric and Oceanic Propagation of Electromagnetic Waves V. Edited by Korotkova, Olga. Proceedings of the SPIE, Volume 7924

Physics

Scientific paper

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.

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