title: Colliding-pulse passive harmonic mode-locking in a femtosecond Yb-doped fiber laser with a semiconductor saturable absorber.
abstract: We demonstrate a passive harmonic mode-locked femtosecond Yb-doped fiber laser employing a semiconductor saturable absorber in a colliding-pulse configuration. 380-fs pulses at 605 MHz repetition rate with >60 dB supermode suppression is achieved.
authors.forename: Y
authors.initials: Y
authors.lastname: Deng
authors.forename: M
authors.initials: M
authors.lastname: Koch
authors.forename: F
authors.initials: F
authors.lastname: Lu
authors.forename: G
authors.initials: G
authors.lastname: Wicks
authors.forename: W
authors.initials: W
authors.lastname: Knox