title: 2.7 W tunable orange-red GaInNAs semiconductor disk laser.
abstract: We report on a GaInNAs/GaAs semiconductor disk laser frequency-doubled to produce orange-red radiation. The disk laser operates at a fundamental wavelength of 1224 nm and delivers an output power of 2.68 W in the visible region with an optical-to-optical conversion efficiency of 7.4%. The frequency-converted signal could be launched into a singlemode optical fiber with 70-78% coupling efficiency, demonstrating good beam quality for the visible radiation. Using a Fabry-Pérot glass etalon the emission wavelength could be tuned over an 8 nm spectral range.
authors: Optoelectronics Research Centre, Tampere University of Technology, Korkeakoulunkatu 3, 33720 Tampere, Finland. jussi.rautiainen@tut.fi
authors: J
authors: J
authors: Rautiainen
authors: A
authors: A
authors: Härkönen
authors: V-M
authors: VM
authors: Korpijärvi
authors: P
authors: P
authors: Tuomisto
authors: M
authors: M
authors: Guina
authors: O G
authors: OG
authors: Okhotnikov
mesh_terms: D003116:Color; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005708:Gallium / Q000737:chemistry*; D007204:Indium / Q000737:chemistry*; D054023:Lasers, Semiconductor; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
chemical_list: D007204:Indium; C473348:gallium nitride; D005708:Gallium; C513701:indium nitride