title: High power 7-GHz bandwidth external-cavity diode laser array and its use in optically pumping singlet delta oxygen.
abstract: Using a 14-mm thick volume Bragg grating, spectral bandwidth of a cw-operated diode laser array is narrowed to 7 GHz (FWHM). Total output power reaches 13.5 W cw, of which 86% is in the 7-GHz band. With such a narrow bandwidth, it is possible to temperature tune laser frequency across O(2) X(3)Pi --> b(1)Sigma(+) absorption line at 763.8 nm, efficiently generating O(2)((1)Delta) molecules.
authors.affiliation: Directed Energy Solutions, 890 Elkton Dr. Suite 101, Colorado Springs, CO 80907, USA. leim@denergysolutions.com
authors.forename: Lei S
authors.initials: LS
authors.lastname: Meng
authors.forename: Boris
authors.initials: B
authors.lastname: Nizamov
authors.forename: Pratheepan
authors.initials: P
authors.lastname: Madasamy
authors.forename: Jason K
authors.initials: JK
authors.lastname: Brasseur
authors.forename: Tom
authors.initials: T
authors.lastname: Henshaw
authors.forename: David K
authors.initials: DK
authors.lastname: Neumann