title: Intracavity frequency-doubled femtosecond cr(4+):forsterite laser.
abstract: The generation of femtosecond optical pulses centered at ~620 nm directly from an all-solid-state laser oscillator is reported. Red pulses with pulse widths of the order of 170 fs were obtained with 24-mW average power at an 81-MHz repetition rate. They were achieved by intracavity frequency doubling of a mode-locked Cr(4+):forsterite laser with a 1-mm-thick beta-BaB(2)O(4) crystal. The process of laser mode locking was modified by surface coating the doubling crystal.
authors: T M
authors: TM
authors: Liu
authors: S P
authors: SP
authors: Tai
authors: C K
authors: CK
authors: Sun