Abstract

We report direct experimental evidence of the absence of exponential gain at the Stokes wavelength for Stokes/anti-Stokes phase-matched stimulated Raman scattering. The amplification of a Stokes seed pulse was measured at various propagation angles relative to the pump direction. Nonexponential growth was observed at the Stokes/anti-Stokes phase-matching angle with an amplification that was smaller than at non-phase-matching angles by a factor of more than 10⁷.

© 1986 Optical Society of America

Observation of parametric gain suppression in rotational Raman transitions of N₂ and H₂

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Absence of second Stokes in a Raman generator with no four-wave mixing

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