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Conferences > CLEO_Europe > 1996 > CThI > CThI34

Spectro-temporal dynamics of a diode laser in an external cavity Application to Intra-Cavity Laser Absorption Spectroscopy

N. Uschanoff, F. Stoeckel, and E. Lacot

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Abstract

Intra Cavity Laser Absorption Spectroscopy (ICLAS) is one of the most sensitive techniques for gas absorption measurements. This technique is based on the high sensitivity of a highly multimode laser to very weak spectrally selective intracavity losses during the start-up of the laser generation. The observed spectrum is equivalent to the one obtained in classical absorption with an equivalent path length given by Leq = c. tg (c is the velocity of the light and tg the time of the observation).

© 1996 IEEE

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