ZnGeP<sub>2</sub> crystal: applications for visualization or IR signals

Yuri M. Andreev; Pavel P. Geiko; Elena Kotsubinskaya

doi:10.1117/12.548593

23 February 2004 ZnGeP₂ crystal: applications for visualization or IR signals

Yuri M. Andreev, Pavel P. Geiko, Elena Kotsubinskaya

Proceedings Volume 5397, Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part II: Laser Sensing and Atmospheric Physics; (2004) https://doi.org/10.1117/12.548593
Event: Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 2003, Tomsk, Russian Federation

Abstract

Up-conversion of long, 3-50-μs, pulses imitating input signals of CO₂ laser differential absorption lidars was investigated experimentally. Efficiency of 1 to 2% has been acheived when using 1.06-μm Nd:YAG pump emission and 3.9 mm ZnGeP₂ crystal that is characterized by absorption coefficient equal to 2.0 cm^-1 at this wavelength and 2.5cm^-1 at up-converted 0.9548 μm one. When using a silicon avalanche photodiode operating in photon counting mode operation, 450 times increase in signal-to-noise ration can be realized in comparison with dirct detection of the CO₂ laser lidar signals by MCT photodiode.

Citation Download Citation

Yuri M. Andreev, Pavel P. Geiko, and Elena Kotsubinskaya "ZnGeP₂ crystal: applications for visualization or IR signals", Proc. SPIE 5397, Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part II: Laser Sensing and Atmospheric Physics, (23 February 2004); https://doi.org/10.1117/12.548593

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