This article is cited in 11 papers

Nonlinear optical phenomena and devices

Efficient parametric generators of picosecond mid-infrared pulses based on AgGaS₂ crystals

V. V. Badikov^a, P. S. Blinov^b, A. A. Kosterev^b, V. S. Letokhov^b, A. L. Malinovsky^b, E. A. Ryabov<sup>b

a</sup> Kuban State University, Krasnodar
^b Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow

Abstract: An investigation was made of parametric oscillation in silver thiogallate (AgGaS₂) crystals pumped by single picosecond pulses from an Nd:YAG laser (λ = 1.064 μm). This resulted in generation of 2.2 — 7.4 μm radiation. The conversion efficiency achieved in a noncollinear two-crystal configuration was considerably higher than that reached earlier for picosecond parametric oscillators in the same spectral range. A variant of a two-pass oscillator with a single crystal was constructed and found to have some advantages compared with a two-crystal oscillator.

PACS: 42.65.Yj, 42.70.Mp

Received: 19.11.1996

 English version: Quantum Electronics, 1997, 27:6, 523–526

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