Joseph M. Fukumoto Raytheon Co. (United States) Jay A. Fox U.S. Army Night Vision and Electronic Sensors Directorate (United States) Cynthia R. Swim U.S. Army Soldier and Biological Chemical Command (United States)
Development of an OPO wavelength conversion scheme is currently in progress that converts the 1 micrometers output from a diode-pumped laser, to the 8 - 12 micrometers spectral region for remote chemical sensing applications. Preliminary results from the non-optimized first stage OPO, which uses an x-cut KTA crystal, show a 21% energy conversion efficiency from 1 micrometers to 2.59 micrometers . The 2.59 micrometers output will then be used to pump a CdSe OPO to generate tunable 8 - 12 micrometers idler wave output.