Abstract
We report passive mode locking of Nd:YAG and Nd:YAlO3 lasers using glasses with microcrystallites of CuInS2xSe2(1–x). We show that it is possible for these glasses to act as saturable absorbers in lasers with active negative feedback. We have obtained ultrashort pulses with a duration of 16 ps and an energy of 20 mJ.
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