A 40% slope efficiency 790nm pumped 1.9 micrometre Tm3+: ZBLAN directly-written waveguide laser

Lancaster, D.Gross, S.Ebendorff-Heidepriem, H.Kuan, K.Monro, T.Fuerbach, A.Whitford, M.2011-06-072011-06-072011Proceedings of the European Conference on Lasers and Electro-Optics and the XIIth European Quantum Electronics Conference (CLEO®/Europe-EQEC), held in Munich, Germany 22-26 May 2011.9781457705335http://hdl.handle.net/2440/64341We report a thulium ZBLAN buried waveguide laser which produces 40mW at 1880nm and has a measured M^2 of 1.6. The waveguide structure is a depressed cladding written using a direct-write fs laser.enCopyright status unknownA 40% slope efficiency 790nm pumped 1.9 micrometre Tm3+: ZBLAN directly-written waveguide laserConference paper00300010352011060710164410.1109/CLEOE.2011.59431792-s2.0-8005228360165041Ebendorff-Heidepriem, H. [0000-0002-4877-7770]