title: Low-threshold, single-frequency, coupled cavity Ti:sapphire laser.
abstract: A novel coupled resonator was developed for narrow-bandwidth, tunable, solid-state lasers. Stable, single-longitudinal-mode, gain-switched titanium:sapphire pulses were obtained across a 130-nm operating range limited by the cavity optics. The low threshold fluence of 0.7 Jcm(-2) makes the cavity attractive for other tunable laser media, particularly when gain is low or parasitic loss is high. A model has been developed that can be used to predict the mode structure of the coupled cavity and for optimization at specific wavelength regions.
authors.forename: A J
authors.initials: AJ
authors.lastname: Tiffany
authors.forename: I T
authors.initials: IT
authors.lastname: McKinnie
authors.forename: D M
authors.initials: DM
authors.lastname: Warrington