Brief Communications

Stimulated Raman scattering excited in capillary waveguides by tunable radiation

V. R. Belan, M. E. Zhabotinskii, V. F. Zolin

Institute of Radio Engineering and Electronics, Academy of Sciences of the USSR, Moscow

Abstract: Two-frequency tunable radiation was generated by stimulated Raman scattering in few-mode optical waveguides (benzene-filled quartz capillaries) pumped by a rhodamine 6G laser radiation. The Stokes shift of the Raman band varied when the dye laser radiation was tuned in the range 17700-17100 cm${}^{-1}$. This variation was governed by the position of the Raman band relative to the absorption line of benzene in the region of 16500 cm${}^{-1}$ associated with the sixth harmonic of the $C-H$ valence vibration of benzene.

UDC: 535.375:621.372.029.7

PACS: 42.65.Cq, 42.55.Mv, 78.45.+h

Received: 21.01.1980

 English version: Soviet Journal of Quantum Electronics, 1980, 10:7, 933–935

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