Stimulated light scattering and optical parametric oscillation in noncollinear wave interactions in the xy plane of a KTP crystal excited by the second harmonic of an Nd:YAG laser
- Inter-branch Institute of advanced training Belorussian Polytechnic academy Minsk-107 (Belarus)
- Stock Company 'Solar Laser Systems', Minsk-107 (Belarus)
The characteristic features of stimulated light scattering and optical parametric oscillation in noncollinear wave interactions, excited by radiation with the wavelength {lambda}{sub p} = 532.1nm in the xy plane of a KTP crystal, were studied experimentally. Stimulated scattering on polaritons was observed on excitation of the KTP crystal, by an ordinary (o) beam. Radiation in the far IR was generated within the crystal at the wavelength {lambda}{sub r} {approx} 52 {mu}m and the frequency {nu}{sub r} = 192.3 cm{sup -1}. The generation and amplification of Stokes radiation with {lambda}{sub s1} = 537.6 nm were achieved (frequency shift{approx}192.3 cm{sup -1} ) with an efficiency of {approx}18% at 22 {sup 0}C. It was established from the threshold oscillation characteristics that the stimulated scattering gain was {approx}30 cm GW{sup -1} . Simultaneous parametric generation of two collinear signal waves with {lambda}{sub so} = 1054.5 nm and {lambda}{sub se} = 1069.2 nm and two noncollinear idler waves with {lambda}{sub ie} = 1074.1 nm and {lambda}{sub io} = 1059.3 nm was observed on excitation by the extraordinary (e) beam. Addition of the frequencies of two collinear signal waves in the KTP crystal led to the appearance of anti-Stokes radiation with {lambda}{sub as} = 530.9 nm. (nonlinear optical phenomena)
- OSTI ID:
- 21440386
- Journal Information:
- Quantum Electronics (Woodbury, N.Y.), Vol. 29, Issue 8; Other Information: DOI: 10.1070/QE1999v029n08ABEH001561; ISSN 1063-7818
- Country of Publication:
- United States
- Language:
- English
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