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26 January 1994 Nonlinear dynamics of a multimode ring dye laser with an adjustable cavity dispersion and sensitivity of intracavity laser spectroscopy
S. E. Vinogradov, Alex A. Kachanov, S. A. Kovalenko, N. A. Raspopov, Eduard A. Sviridenkov
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Proceedings Volume 2205, 11th Symposium and School on High-Resolution Molecular Spectroscopy; (1994) https://doi.org/10.1117/12.166265
Event: High Resolution Molecular Spectroscopy: 11th Symposium and School, 1993, Moscow, Russian Federation
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.
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S. E. Vinogradov, Alex A. Kachanov, S. A. Kovalenko, N. A. Raspopov, and Eduard A. Sviridenkov "Nonlinear dynamics of a multimode ring dye laser with an adjustable cavity dispersion and sensitivity of intracavity laser spectroscopy", Proc. SPIE 2205, 11th Symposium and School on High-Resolution Molecular Spectroscopy, (26 January 1994); https://doi.org/10.1117/12.166265
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KEYWORDS
Dye lasers
Laser spectroscopy
Nonlinear dynamics
Absorption
Continuous wave operation
Laser damage threshold
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