title: Femtosecond pulse generation in a laser with a nonlinear external resonator.
abstract: A simple model is presented to describe mode locking in a laser coupled to a nonlinear resonator. It reveals a new mechanism for pulse shortening and shows that shortening does not rely on dispersion in the auxiliary cavity. Experimental results are given to support the basic predictions of the model.
authors.forename: J
authors.initials: J
authors.lastname: Mark
authors.forename: L Y
authors.initials: LY
authors.lastname: Liu
authors.forename: K L
authors.initials: KL
authors.lastname: Hall
authors.forename: H A
authors.initials: HA
authors.lastname: Haus
authors.forename: E P
authors.initials: EP
authors.lastname: Ippen