Abstract

The spatial mode structure of the stimulated Stokes emission from a H₂ Raman generator has been accurately determined by using a linear photodiode array and imaging techniques. The diffraction-limited pump beam was obtained by spatially clipping the output of an injection-locked XeCl laser. The spatial profiles of the stimulated Stokes beam are compared with the predictions of Yariv’s theory of propagation in a quadratic gain medium applied to Raman scattering [ A. Yariv, Quantum Electronics ( Wiley, New York, 1975)]. While the theory compares well with the experimental data at low intensities, the spatial profile develops features at higher intensities that are not predicted by the simple theory.

© 1986 Optical Society of America

Studies of Stokes generation in XeF-pumped CH₄

Robert G. Wenzel and John M. Telle
J. Opt. Soc. Am. B 3(10) 1483-1488 (1986)

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J. Opt. Soc. Am. B 7(7) 1336-1345 (1990)

High-efficiency first-Stokes generation from XeF-pumped CH₄

John M. Telle and Robert G. Wenzel
J. Opt. Soc. Am. B 3(10) 1489-1491 (1986)

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Beam cleanup with stimulated Raman scattering in the intensity-averaging regime

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J. Opt. Soc. Am. B 3(10) 1408-1427 (1986)