This article is cited in 23 papers

Papers devoted to the memory of S.A. Akhmanov

Parametric Raman laser with a discrete output spectrum equal in width to the pump frequency

L. L. Losev, A. P. Lutsenko

P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow

Abstract: It has been shown analytically and numerically that the maximum width of the region occupied by the components of the stimulated Raman scattering with comparable intensities is equal to the pump frequency. Conditions for achieving this type of operation are formulated. During rotational stimulated Raman scattering of focused biharmonic radiation in hydrogen, eight anti-Stokes components and five Stokes components have been achieved, with relative intensities of 10^–3 and 10^–2, respectively. The divergence of these components was ~1.5–2.5 times the diffraction limit. The width of an individual line, δν, was no greater than 2 · 10^–2 cm^–1. The length of the Stokes components was much smaller than that of the anti-Stokes components. It is shown at a qualitative level that the reason for the significant discrepancy between the number of components predicted by the plane-wave theory and that found experimentally is a wave mismatch due to diffraction.

UDC: 621.373.826.038.823

PACS: 42.55.Ye, 42.60.Jf, 42.65.Dr

Received: 17.05.1993

 English version: Quantum Electronics, 1993, 23:11, 919–926

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