We report on a continuous wave (CW) and Kerr-lens mode-locked (KLM) Tm:YScO single-crystal laser centered at 2.1 µm. Efficient CW laser operation with a maximum slope efficiency of 51% was achieved under in-band pumping by an Er:Yb fiber master oscillator power amplifier (MOPA). In KLM operation, pulses as short as 49 fs corresponding to seven optical cycles were achieved at a repetition rate of 96.7 MHz with an average output power of 126 mW. Such short pulse durations are enabled by the inhomogeneously broadened emission spectrum of Tm:YScO extending to above 2200 nm.
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| http://dx.doi.org/10.1364/OL.497847 | DOI Listing |
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