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Proceedings Paper

Generator of erbium and CO2 laser combination frequencies
Author(s): Yuri M. Andreev; Pavel P. Geiko; Valerii G. Voevodin
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Paper Abstract

Sum and difference frequency generators of Er3+:CaF2 ((lambda) equals 2.76 micrometers ), Er3+:YAG ((lambda) equals 2.94 micrometers ), and cw CO2 lasers with ZnGeP2 and CdSe single crystals has been developed to enlarge the possibilities of spectroscopic systems based on CO2 lasers. The generated spectra overlapped the ranges from 2.1 to 2.3 and from 3.7 to 4.3 micrometers which coincide with the two main atmosphere transparency windows. The energy effectiveness of sum frequency generation with 4.5 mm ZnGeP2 crystal realized is about 3% at phase-matching angle of 52 degree(s) and 12% for difference frequency generation in 40-mm CdSe crystals at phase-matching angle of 72 degree(s)40'. The latter source, in particular, may be used in CH4 lidar.

Paper Details

Date Published: 25 January 2000
PDF: 5 pages
Proc. SPIE 4063, 13th Symposium and School on High-Resolution Molecular Spectroscopy, (25 January 2000); doi: 10.1117/12.375389
Show Author Affiliations
Yuri M. Andreev, Institute of Optical Monitoring (Russia)
Pavel P. Geiko, Institute of Optical Monitoring (Russia)
Valerii G. Voevodin, Siberian Physical-Technical Institute/Tomsk State Univ. (Russia)

Published in SPIE Proceedings Vol. 4063:
13th Symposium and School on High-Resolution Molecular Spectroscopy
Leonid N. Sinitsa, Editor(s)

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