Abstract

We demonstrate an order-of-magnitude increase in the efficiency for first-Stokes Raman generation in a gas cell (CH4) by seeding with spontaneous emission from a dye cell. Second-Stokes and first-anti-Stokes lines were also generated more efficiently. The pump energy required for production of a 1% conversion efficiency for the first-Stokes emission is reduced by a factor of 1.8 below that required without seeding.

© 1994 Optical Society of America

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