title: Chalcogenide glass microsphere laser.
abstract: Laser action has been demonstrated in chalcogenide glass microsphere. A sub millimeter neodymium-doped gallium lanthanum sulphide glass sphere was pumped at 808 nm with a laser diode and single and multimode laser action demonstrated at wavelengths between 1075 and 1086 nm. The gallium lanthanum sulphide family of glass offer higher thermal stability compared to other chalcogenide glasses, and this, along with an optimized Q-factor for the microcavity allowed laser action to be achieved. When varying the pump power, changes in the output spectrum suggest nonlinear and/or thermal effects have a strong effect on laser action.
authors.affiliation: Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK.
authors.forename: Gregor R
authors.initials: GR
authors.lastname: Elliott
authors.forename: G Senthil
authors.initials: GS
authors.lastname: Murugan
authors.forename: James S
authors.initials: JS
authors.lastname: Wilkinson
authors.forename: Michalis N
authors.initials: MN
authors.lastname: Zervas
authors.forename: Daniel W
authors.initials: DW
authors.lastname: Hewak
mesh_terms: D018011:Chalcogens / Q000737:chemistry*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D005898:Glass / Q000737:chemistry*; D007259:Infrared Rays; D007834:Lasers; D008863:Microspheres; D008904:Miniaturization
chemical_list: D018011:Chalcogens