title: Tunable 6.8 W narrow bandwidth emission from a single-stripe continuous-wave broad-area laser diode in a simple external cavity.
abstract: An antireflection-coated broad-area laser diode with an emitter size of 400 microm x 1 microm and a chip length of 1500 microm is operated in a simple external cavity. For wavelength stabilization and to narrow the bandwidth a diffraction grating in a Littrow configuration is used. At an injection current of 9 A up to 6.8 W of optical output power and a resulting slope efficiency of 0.8 W/A could be achieved. Further, the bandwidth could be narrowed to 100 pm (FWHM), and a tuning range of 40 nm around 976 nm was obtained.
authors.affiliation: University of Potsdam, Potsdam, Germany. ajechow@uni-potsdam.de
authors.forename: Andreas
authors.initials: A
authors.lastname: Jechow
authors.forename: Volker
authors.initials: V
authors.lastname: Raab
authors.forename: Ralf
authors.initials: R
authors.lastname: Menzel