Abstract

A crystalline Raman laser is pumped at 90° to the Raman laser axis by a single pass from a line-focused 532nm pump laser of pulse duration 10ns. The Raman laser threshold was 6.1mJ, and at 12mJ pump energy, a maximum output energy of 2.7mJ was obtained with a slope efficiency of 46%. The threshold pump intensity is within a factor of 2 of the same device when end-pumped. The results highlight significant potential for coherent beam conversion and combination with enhanced degrees of flexibility and increased power.

© 2011 Optical Society of America

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