title: Zeeman discharge tube frequency monitor.
abstract: A discriminant to frequency stabilize a gas laser has been obtained from a discharge tube in which the gain profile is split by an ac magnetic field. By superimposing a do magnetic field, the discriminant can be centered at any point on the gain profile. By employing feedback techniques, the center of the discriminant can be used to track a laser frequency; the magnitude of the do magnetic field determines the displacement of the laser frequency from the gain maximum.
authors.affiliation: Systems and Research Center,Honeywell, Inc., Minneapolis, Minnesota 55113, USA.
authors.forename: F
authors.initials: F
authors.lastname: Aronowitz
authors.forename: H A
authors.initials: HA
authors.lastname: Gustafson
authors.forename: J E
authors.initials: JE
authors.lastname: Killpatrick