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Proceedings Paper

Mid-infrared all solid state DIAL for remote sensing of hazardous chemical agents
Author(s): V. Vaicikauskas; Z. Kuprionis; M. Kaucikas; V. Svedas; V. Kabelka
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Paper Abstract

We describe all solid state differential absorption lidar (DIAL) based on the mid-infrared (IR) tunable Optical Parametric Oscillator (OPO). Generation of tunable mid-infrared laser radiation using a two stage tandem OPO was demonstrated. The first stage was based on the nonlinear KTP crystal and produced up to 45 mJ of 1.57 μm radiation, while pumped by a commercial Q-switched Nd:YAG laser. The quality of signal beam was improved by the use of unstable resonator. The AgGaSe2 crystal was used in the second stage OPO. Idler energies up to 1 mJ were generated at this stage within tuning range from 6 to 12 μm. The receiver consisted of a 250 mm gold mirror telescope, two channel detection system and control electronics. We have designed a photoacoustic cell for wavelength calibration of lidar. Preliminary lidar field test results are presented.

Paper Details

Date Published: 19 May 2006
PDF: 10 pages
Proc. SPIE 6214, Laser Radar Technology and Applications XI, 62140E (19 May 2006); doi: 10.1117/12.665638
Show Author Affiliations
V. Vaicikauskas, Institute of Physics (Lithuania)
Z. Kuprionis, EKSPLA, Ltd. (Lithuania)
M. Kaucikas, Institute of Physics (Lithuania)
EKSPLA, Ltd. (Lithuania)
V. Svedas, Institute of Physics (Lithuania)
V. Kabelka, Institute of Physics (Lithuania)

Published in SPIE Proceedings Vol. 6214:
Laser Radar Technology and Applications XI
Gary W. Kamerman; Monte D. Turner, Editor(s)

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