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High-efficiency high-average-power second-harmonic generation with CdGeAs/sub 2/

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.89104· OSTI ID:7269578
Average second-harmonic power at 5.3 ..mu..m exceeding 0.75 W with a 17% power conversion efficiency has been obtained by pumping a CdGeAs/sub 2/ crystal, cooled to near 77 K, with a Q-switched CO/sub 2/ laser. Average and peak conversion efficiencies of 21 and 30%, respectively, were achieved at a pulse rate of 1.5 kHz. In cw operation the crystal gave a second-harmonic output of 73 mW with a conversion efficiency near 0.5%. (AIP)
Research Organization:
Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, Massachusetts 02173
OSTI ID:
7269578
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 29:7; ISSN APPLA
Country of Publication:
United States
Language:
English

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