A planar waveguide Nd: YAG laser with a hybrid waveguide-unstable resonator

H. J. Baker, A. A. Chesworth, D. Pelaez Millas, D. R. Hall

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)


Mode selection processes are presented for a 200 µm active thickness Nd:YAG planar waveguide laser, pumped by 10 laser diode bars in a multi-pass, slotted mirror pump chamber. A hybrid waveguide-unstable resonator is shown to be effective at mode control, producing a single, edge-coupled output beam of up to 5 W average power for quasi-CW pulsed pumping. A lateral M2 factor of 1.5 and a low order waveguide mode with a transverse M2 factor of 4.3 is obtained with 4 W output. The resonator configuration is shown to be unaffected by transverse or lateral thermal lens effects. © 2001 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)125-131
Number of pages7
JournalOptics Communications
Issue number1-2
Publication statusPublished - 1 May 2001


  • Face-pumping
  • Neodymium-doped
  • Planar waveguide laser


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