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Diode-pumped, high-average-power femtosecond Cr 3 + : LiCAF laser

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Abstract

We demonstrate a high-average-power continuous wave (cw) and cw mode-locked Cr3+:LiCAF laser pumped by broad-area laser diodes. In cw lasing experiments, up to 580mW of output was obtained with 4.35W of incident pump. A semiconductor saturable absorber mirror was used to initiate stable, self-starting, mode locking. In the cw mode-locked regime, the Cr3+:LiCAF laser produced nearly transform-limited, 67fs long pulses near 800nm with an average output power of 300mW. The pulse repetition rate was 120MHz, with a pulse energy of 2.5nJ.

© 2007 Optical Society of America

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