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High stability CW waveguide CO2laser for high resolution saturation spectroscopy

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3 Author(s)
Lerberghe, A. ; Laboratoire de Physique des Lasers, Université Paris-Nord, Villetaneuse, France ; Avrillier, Sigrid ; Borde, C.

We describe a stable waveguide CO2laser for spectroscopic applications. The short term spectral width is less than 10 kHz and a 10-12flicker floor is reached for the Allan variance. A study of the oscillation frequency versus resonator length demonstrates the major influence of the anomalous index of refraction of the medium. Saturation resonances with a 20 kHz peak-to-peak width have been obtained with a very good signal-to-noise ratio. A complete spectrum of SF6forP(16) at 947.74 cm-1is given as an example to illustrate the 500 MHz bandwidth of the laser.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:14 ,  Issue: 7 )

Date of Publication:

Jul 1978

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