Development of edge pumped Yb: YAG planar waveguide lasers

H. J. Baker, J. F. Monjardin, I. Thomson, N. Trela, J. D R Valera, D. R. Hall

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

A waveguide with 150 µm core height of 2% Yb:YAG between sapphire claddings is core-pumped at 480W by diode bars coupled into the 13 mm long edge-facet. The pump unit has custom correction of collimation errors and lens aberrations. Using a 6mm width and 7° edge-facet angle, power is limited by competing ASE loss or parasitic oscillation along TIR-trapped internal paths, giving 40 W output for stable and 25 W for unstable resonators. Ray-tracing shows a 20° facet angle is necessary to successfully out-couple ASE from the core. Preliminary operation at 90W and an increased threshold for the parasitic oscillation are obtained.

Original languageEnglish
Title of host publicationSolid State Lasers XVII: Technology and Devices
Volume6871
DOIs
Publication statusPublished - 2008
EventPhysics and Simulation of Optoelectronic Devices XVI - San Jose, CA, United States
Duration: 21 Jan 200824 Jan 2008

Conference

ConferencePhysics and Simulation of Optoelectronic Devices XVI
CountryUnited States
CitySan Jose, CA
Period21/01/0824/01/08

Keywords

  • Light trapping modeling
  • Planar waveguide laser
  • Ytterbium:YAG

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    Baker, H. J., Monjardin, J. F., Thomson, I., Trela, N., Valera, J. D. R., & Hall, D. R. (2008). Development of edge pumped Yb: YAG planar waveguide lasers. In Solid State Lasers XVII: Technology and Devices (Vol. 6871) https://doi.org/10.1117/12.774124