A nanosecond optical parametric oscillator in the mid-IR region with double-pass pump

Autor: A. I. Karapuzikov, M. K. Starikova, O. M. Kuznetsov, Dmitry B. Kolker, Yu. V. Kistenev, A. A. Karapuzikov, R. V. Pustovalova
Rok vydání: 2012
Předmět:
Zdroj: Instruments and Experimental Techniques. 55:263-267
ISSN: 1608-3180
0020-4412
DOI: 10.1134/s0020441212010174
Popis: An optical parametric oscillator (OPO) with double-pass pump based on MgO:PPLN and PPLN periodic structures is described. A compact nanosecond Nd:YLF laser has been used as a pump source at 1.053 μm (the pumping pulse duration is 5–7 ns at a maximum pulse energy of 300 μJ at frequencies of 1–7 kHz). The oscillation threshold of the OPO based on MgO:PPLN was varied in a range of 11–28 μJ at wavelength of 2.1–4.3 μm. The conversion efficiency from the pump wave to an idler wave decreased from 8.6 to 2.5% in the range of 2.0–4.3 μm. For PPLN-OPO the measured threshold was 36 μJ at 4.2 μm and 49 μJ at 4.7 μm. The conversion efficiency of the pump energy into the energy of an idler wave was 3.3μ-0.4% at wavelengths of 4.2–4.7 μm.
Databáze: OpenAIRE