title: Tm:LiYF4 planar waveguide laser at 1.9 μm.
abstract: Continuous wave laser operation at 1.87 μm of liquid-phase epitaxially (LPE) grown Tm(3+)-doped YLiF(4) (Tm:YLF) layers is demonstrated. The waveguide laser delivers 560 mW by pumping with a Ti:Sapphire laser at 780 nm leading to an efficiency of 76% with respect to the absorbed pump power. This constitutes the first Tm(3+)-doped crystalline fluoride waveguide laser ever demonstrated as well as a record in efficiency and output power for an LPE grown waveguide laser operating in the 2 μm spectral range.
authors.affiliation: Centre de Recherche sur les Ions, les Matériaux et la Photonique (CIMAP), UMR 6252 CEA-CNRS-Ensicaen, Université de Caen, 6 Boulevard Maréchal Juin, 14050, Caen-France.
authors.forename: Western
authors.initials: W
authors.lastname: Bolanos
authors.forename: Florent
authors.initials: F
authors.lastname: Starecki
authors.forename: Abdelmjid
authors.initials: A
authors.lastname: Benayad
authors.forename: Gurvan
authors.initials: G
authors.lastname: Brasse
authors.forename: Vivien
authors.initials: V
authors.lastname: Ménard
authors.forename: Jean-Louis
authors.initials: JL
authors.lastname: Doualan
authors.forename: Alain
authors.initials: A
authors.lastname: Braud
authors.forename: Richard
authors.initials: R
authors.lastname: Moncorgé
authors.forename: Patrice
authors.initials: P
authors.lastname: Camy
mesh_terms: D000042:Absorption; D005459:Fluorides / Q000737:chemistry; D053844:Lasers, Solid-State; D013932:Thulium / Q000737:chemistry*
chemical_list: D013932:Thulium; D005459:Fluorides