Abstract
We present what is, to the best of our knowledge, the first pure-three-level (Yb:GdCOB) laser emitting at 976 nm based on the transition, generally used for a quasi-three-level emission at 1032 nm. A maximum power of 782 mW at 976 nm has been achieved in continuous-wave (CW) operation pumped by a quasi-three-level laser emitting at 902 nm. Moreover, a self-frequency-doubling CW blue laser has also been demonstrated with a maximum power of 133 mW at 488 nm.
© 2018 Optical Society of America
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