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Proceedings Paper

Nonlinear dynamics of a multimode ring dye laser with an adjustable cavity dispersion and sensitivity of intracavity laser spectroscopy
Author(s): S. E. Vinogradov; Alex A. Kachanov; S. A. Kovalenko; N. A. Raspopov; Eduard A. Sviridenkov
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Paper Abstract

Emission dynamics of a multimode broadband dye laser have been investigated experimentally. Cavity dispersion properties are shown to essentially affect the character of emission. Regular self-excited oscillations of emission intensity in singular modes have been observed in a cw ring unidirectional dye laser. The period of these oscillations is shown to depend on the cavity dispersion. These oscillations are supposed to be due to a four-wave parametric mixing of non uniformly spaced modes in active media. When the cavity dispersion is compensated no intensity fluctuations of emission in single modes are observed up to as long lasing duration at approximately 10-1 s. With such a laser employed the highest sensitivity of an intracavity laser spectroscopy has been achieved which provides the detection threshold of this technique by the absorption coefficient as low as 10-11 cm-1.

Paper Details

Date Published: 26 January 1994
PDF: 7 pages
Proc. SPIE 2205, 11th Symposium and School on High-Resolution Molecular Spectroscopy, (26 January 1994); doi: 10.1117/12.166265
Show Author Affiliations
S. E. Vinogradov, P.N. Lebedev Physical Institute (Russia)
Alex A. Kachanov, Institute of Spectroscopy (Russia)
S. A. Kovalenko, Institute of Chemical Physics (Germany)
N. A. Raspopov, P.N. Lebedev Physical Institute (Russia)
Eduard A. Sviridenkov, P.N. Lebedev Physical Institute (Russia)

Published in SPIE Proceedings Vol. 2205:
11th Symposium and School on High-Resolution Molecular Spectroscopy
Alexander I. Nadezhdinskii; Yu V. Ponomarev; Leonid N. Sinitsa, Editor(s)

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