title: A Yb3+/Tm3+/Ho3+ triply-doped tellurite fibre laser.
abstract: Continuous wave laser emission at 2.1 microm from a Yb(3+)/Tm(3+)/Ho(3+) triply-doped tellurite fibre laser is reported. The fibre was pumped at 1.1 microm by a Yb(3+)-doped double-clad silica fibre laser. For a 17 cm fibre length and 99%???60% reflectance cavity, the threshold was 15 mW and the slope efficiency was 25%. A maximum output of 60 mW was observed for a launched pump power of 270 mW, corresponding to 22% optical-to-optical efficiency.
authors.affiliation: Photon Physics Group, School of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK. yuen.tsang@manchester.ac.uk
authors.forename: Yuen
authors.initials: Y
authors.lastname: Tsang
authors.forename: Billy
authors.initials: B
authors.lastname: Richards
authors.forename: David
authors.initials: D
authors.lastname: Binks
authors.forename: Joris
authors.initials: J
authors.lastname: Lousteau
authors.forename: Animesh
authors.initials: A
authors.lastname: Jha
mesh_terms: D004867:Equipment Design; D006695:Holmium / Q000737:chemistry*; D007259:Infrared Rays; D007834:Lasers; D055095:Optics and Photonics; D013691:Tellurium / Q000737:chemistry; D013932:Thulium / Q000737:chemistry*; D015018:Ytterbium / Q000737:chemistry*
chemical_list: D013932:Thulium; D015018:Ytterbium; D013691:Tellurium; D006695:Holmium