title: Frequency-narrowed diode array bar.
abstract: We describe a method to frequency narrow multielement high-power diode bars. Using a commercial 60-W, 49-element, 1-cm-long diode array bar at 795 nm running at 45 W, we narrow the linewidth from 1000 to 64 GHz with only a loss of 33% in output power. The resulting laser light is well suited for spin-exchange optical pumping of noble gas nuclei.
authors.affiliation: Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA. edbabcock@wisc.edu
authors.forename: Earl
authors.initials: E
authors.lastname: Babcock
authors.forename: Bien
authors.initials: B
authors.lastname: Chann
authors.forename: Ian A
authors.initials: IA
authors.lastname: Nelson
authors.forename: Thad G
authors.initials: TG
authors.lastname: Walker
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D008027:Light; D008029:Lighting / Q000295:instrumentation* / Q000379:methods; D012666:Semiconductors