title: Acousto-optic modulator as an electronically selectable unidirectional device in a ring laser.
abstract: An acousto-optic modulator causes unidirectional operation of dye and Ti:sapphire ring lasers. The modulator has a low insertion loss in the cavity and can be used to switch the direction of the beam electronically. The ring-laser performance is characterized, and experiments to probe the origin of the unidirectional operation are described.
authors.forename: R
authors.initials: R
authors.lastname: Roy
authors.forename: P A
authors.initials: PA
authors.lastname: Schulz
authors.forename: A
authors.initials: A
authors.lastname: Walther