Abstract

The absolute stability of a semiconductor laser that is stabilized to an absorption line in water vapor has been investigated by using an independent water-vapor cell. A shift in frequency of about 1 part in 10⁸ per degree Celsius was measured and attributed to temperature-dependent pressure shift in water vapor.

© 1987 Optical Society of America

Atmospheric water vapor absorption at 1.3 μm

S. L. Bragg and J. D. Kelley
Appl. Opt. 26(3) 506-513 (1987)

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Wavelength-modulation laser hygrometer for ultrasensitive detection of water vapor in semiconductor gases

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Frequency stabilization of semiconductor lasers by resonant optical feedback

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CO₂ DIAL measurements of water vapor

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