400W Yb:YAG planar waveguide laser using novel unstable resonators

Ian J. Thomson, Howard John Baker, Krystian Lukasz Wlodarczyk, Natalia Trela, Denis R. Hall

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

9 Citations (Scopus)

Abstract

A planar waveguide laser consisting of a 13mm x 12mm x 150µm Yb:YAG core with 1mm high sapphire claddings is edge pumped using two 450W diode stacks with custom aberration correcting phase-plates. A plano-concave resonator gives 400W average power in a low-order transverse, multi-longitudinal mode beam with 75% slope efficiency, comparable to other thin disk and slab lasers. Transverse beam quality is improved through use of novel mode selective toroidal laser-cut resonator mirrors, whilst lateral beam quality is improved through the use of an unstable resonator. Uniform gain with an amplification of 3-4 per pass shows promise for amplifier operation. © 2010 Copyright SPIE - The International Society for Optical Engineering.

Original languageEnglish
Title of host publicationSolid State Lasers XIX: Technology and Devices
EditorsW. Andrew Clarkson, Norman Hodgson, Ramesh K. Shori
PublisherSPIE
Volume7578
ISBN (Print)9780819479747
DOIs
Publication statusPublished - 2010
EventSolid State Lasers XIX: Technology and Devices - San Francisco, California, United States
Duration: 24 Jan 201028 Jan 2010

Publication series

NameProceedings of SPIE--the International Society for Optical Engineering
Volume7578
ISSN (Print)1996-756X

Conference

ConferenceSolid State Lasers XIX: Technology and Devices
CountryUnited States
CitySan Francisco, California
Period24/01/1028/01/10

Keywords

  • Planar waveguide laser
  • Toroidal mirror
  • Ytterbium:YAG

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