High-Power and High-Repetition Rate Femtosecond Chromium-Doped Forsterite Laser

Abstract

We report the amplification of a Kerr-lens mode-locking cavity-dumped frequency-doubled chromium-doped forsterite laser in a six-pass bow-tie dye amplifier pumped by a diodepumped Q-switched frequency-doubled Nd: YLF laser. This system generates the energy of 0.6μJ per pulse and a pulse duration as short as 43 fs (FWHM) at the wavelength of 630 nm with a repetition rate of 4 kHz. The amplified pulses were used to generate a continuum in a fused silica plate.