Self-frequency Raman conversion in Q-switched diode-pumped Yb:KGd(WC4)2 laser was demonstrated with fundamental-to-first-Stokes conversion efficiency as high as 40%. The output pulses have been obtained simultaneously at 1038 nm and at 1145 nm with energy of 10.8 ¼J and 8.2 ¼J as short as 1.7 ns and 0.7 ns, respectively, at the repetition rate of 13.3 kHz.

© 2003 Optical Society of America

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