title: Phase locking counterrotating modes of a broadband ring dye laser.
abstract: We present the results of an experimental study of phase locking counterrotating modes in a Rhodamine-6G continuous-wave broadband ring dye laser. Results for the measured mutual coherence of the counterrotating fields are presented for three different coupling geometries: namely, coupling by using an intracavity retroreflector, a single extracavity retroreflector placed in one of the output beams,and extracavity retroreflectors placed in each of the two output beams. We find that the highest degree of locking is obtained for the case of the intracavity retroreflector and leads to counterrotating outputswith a measured mutual coherence of unity.
authors.forename: M T
authors.initials: MT
authors.lastname: Gruneisen
authors.forename: S H
authors.initials: SH
authors.lastname: Chakmakjian
authors.forename: E D
authors.initials: ED
authors.lastname: Seeberger
authors.forename: C M
authors.initials: CM
authors.lastname: Clayton