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Proceedings Paper

ZnGeP2 crystal: applications for visualization or IR signals
Author(s): Yuri M. Andreev; Pavel P. Geiko; Elena Kotsubinskaya
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Paper 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.

Paper Details

Date Published: 23 February 2004
PDF: 8 pages
Proc. SPIE 5397, Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part II: Laser Sensing and Atmospheric Physics, (23 February 2004); doi: 10.1117/12.548593
Show Author Affiliations
Yuri M. Andreev, Institute for Optical Monitoring (Russia)
Pavel P. Geiko, Institute for Optical Monitoring (Russia)
Elena Kotsubinskaya, Institute for Optical Monitoring (Russia)


Published in SPIE Proceedings Vol. 5397:
Tenth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part II: Laser Sensing and Atmospheric Physics
Gennadii G. Matvienko; Georgii M. Krekov, Editor(s)

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