Abstract

We have proposed a new method of enhancing the efficiency of pulsed anti-Stokes stimulated Raman generation by using quasi-phase matching in a stack of alternating layers with different Raman properties. We have derived a system of coupled differential equations describing a multifrequency stimulated Raman process with interacting waves propagating in both the forward and the backward direction. We show that the efficiency of anti-Stokes generation can reach 20–30%. We also show that an optimized layered structure can perform for a broad range of pump parameters, such as pulse duration, intensity, and Fresnel number.

© 2005 Optical Society of America

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