Abstract
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 language | English |
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Pages (from-to) | 125-131 |
Number of pages | 7 |
Journal | Optics Communications |
Volume | 191 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 1 May 2001 |
Keywords
- Face-pumping
- Neodymium-doped
- Planar waveguide laser