Abstract
We report on the first sub-100-fs mode-locked Ho3+-laser in the 2-µm spectral range. The disordered co-doped Tm,Ho:CaYAlO4 (Tm,Ho:CALYO) crystal produced pulses as short as 87 fs with 27-mW average output power at 80.45-MHz repetition rate.
© 2018 The Author(s)
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