High-brightness fiber laser-pumped 68 fs–23 W Kerr-lens mode-locked Yb:CaF_2 oscillator
Guillaume MachinetP. SévillanoFlorent GuichardR. DubrasquetPatrice CamyJean‐Louis DoualanR. MoncorgéPatrick GeorgesF. DruonD. DescampsE. Cormier
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Abstract:
By using a high-brightness fiber pump laser, we demonstrate a pure Kerr-lens mode-locked (ML) Yb:CaF(2) oscillator. The laser delivers 68 fs pulses with 2.3 W average power at 73 MHz repetition rate and an optical-to-optical efficiency of 33% is achieved. To the best of our knowledge, this is the first demonstration of Kerr-lens mode-locking in Yb:CaF(2). Incidentally, we report here the highest average power ever achieved for a sub-100-fs active Kerr-lens ML Yb-bulk oscillator.Keywords:
Mode-Locking
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