Vol. 1, issue 04, article # 17

Andreev Yu. M., Govdei S. N., Geiko P. P., Gribenyukov A. I., Gurashvili V. A., Zuev V. V., Izyumov S. V. Multifrequency laser source in the 2.6-3.2mm range. // Atmospheric and oceanic optics. 1988. V. 1. No. 04. P. 124-126.
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Abstract:

Q-switched low pressure CO laser frequency conversion in the 2.6-3.2mm spectral range was studied. Experimentally to yield simultaneous laser action on 200 lines. The laser emitted at 80 wavelengths for a modulation frequency of 10-200 Hz. The external frequency conversion efficiency for an uncoated 12 mm ZnGeP2 crystal was found to be as high as 4.9 percent (8.8 mW average power), which corresponded to an internal efficiency of 10 percent. Performance characteristics of the frequency converter used were also investigated.