Wavelength-Stabilization of Extended-Cavity Tapered Lasers with Volume Bragg Gratings

Gaëlle Lucas-Leclin (1) , David Pabœuf (1) , Patrick Georges (1) , Jesper Holm (2) , Peter Andersen (2) , Bernd Sumpf (3) , Götz Ebert (3)

1 Laboratoire Charles Fabry de l'Institut d'Optique / Elsa
2 DTU - Department of Photonics Engineering
3 FBH - Ferdinand-Braun-Institut für Höchtstfrequenztechnik

The wavelength stabilization of high-brightness extended-cavity lasers at 810-nm by use of volume Bragg gratings is described. Narrow linewidth (< 20 pm), high power (2.5 W) and good beam quality (M2 < 4) operation has been obtained in a robust and simple design. The impact of the beam focusing into the Bragg grating on the external-cavity performance has been theoretically and experimentally investigated. Finally, second-harmonic generation of the infrared beam has been obtained in a ppKTP crystal, demonstrating a non-linear conversion efficiency of 0.8%/W and up to 8 mW at 405 nm.

Domaines: Optique [physics.optics]; Optique / photonique

Gaëlle Lucas-Leclin, David Pabœuf, Patrick Georges, Jesper Holm, Peter Andersen, et al.. Wavelength-Stabilization of Extended-Cavity Tapered Lasers with Volume Bragg Gratings. Applied Physics B - Laser and Optics, 2008, 91 (3-4), pp.493-498. ⟨10.1007/s00340-008-3034-2⟩. ⟨hal-00522807⟩