Generator of erbium and CO2 laser combination frequencies

Yuri M. Andreev; Pavel P. Geiko; Valerii G. Voevodin

doi:10.1117/12.375389

25 January 2000 Generator of erbium and CO₂ laser combination frequencies

Yuri M. Andreev, Pavel P. Geiko, Valerii G. Voevodin

Proceedings Volume 4063, 13th Symposium and School on High-Resolution Molecular Spectroscopy; (2000) https://doi.org/10.1117/12.375389
Event: 13th Symposium and School on High-Resolution Molecular Spectroscopy, 1999, Tomsk, Russian Federation

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.

Citation Download Citation

Yuri M. Andreev, Pavel P. Geiko, and Valerii G. Voevodin "Generator of erbium and CO₂ laser combination frequencies", Proc. SPIE 4063, 13th Symposium and School on High-Resolution Molecular Spectroscopy, (25 January 2000); https://doi.org/10.1117/12.375389

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