Title :
Erbium-doped fluoride glass waveguides
Author :
Waldmann, Maike ; Caspary, Reinhard ; Esser, Dagmar ; Wortmann, Dirk ; Gottmann, Jens ; Kowalsky, Wolfgang
Author_Institution :
Inst. of High Freq. Technol., Tech. Univ. at Braunschweig, Braunschweig
Abstract :
Since green laser diodes are still not commercially available, alternative technologies like frequency doubling have to be used for compact green laser sources. The goal of this work is to develop diode pumped green erbium-doped glass up-conversion waveguide lasers, instead. Planar fluoride glass waveguides are fabricated using a spin-coating technology. Until now, planar fluoride glass film waveguides with thicknesses are achieved down to 30 mum. The waveguides were doped with up to 3 mol% erbium. Scattering losses of 0.2 dB/cm at 975 nm and strong green emission at 520 - 550 nm is observed in erbium-doped waveguides 50 mum in thickness.
Keywords :
aluminium compounds; barium compounds; erbium; fluoride glasses; integrated optics; lanthanum compounds; optical films; optical glass; optical losses; sodium compounds; solid lasers; waveguide lasers; zirconium compounds; ZBLAN:Er; diode pumped green up-conversion waveguide laser; erbium-doped fluoride glass waveguide; green emission; planar fluoride glass film waveguide; scattering loss; size 50 mum; spin coating; wavelength 520 nm to 550 nm; wavelength 975 nm; Fluorescence; Glass; Optical films; Optical scattering; Optical waveguides; Pump lasers; Rough surfaces; Substrates; Temperature; Waveguide lasers; erbium doped glass; fluoride glass; glass waveguides; optical amplifier; waveguide laser;
Conference_Titel :
Transparent Optical Networks, 2008. ICTON 2008. 10th Anniversary International Conference on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-2625-6
Electronic_ISBN :
978-1-4244-2626-3
DOI :
10.1109/ICTON.2008.4598694
