Self-induced transverse mode selection in a photorefractive extended cavity laser diode

Vincent Reboud (1) , Nicolas Dubreuil (1) , Pierre Fournet (1) , Gilles Pauliat (1) , Gérald Roosen (1) , Daniel Rytz (2)

1 Laboratoire Charles Fabry de l'Institut d'Optique / Manolia
2 FEE

Previous works on photorefractive self-organizing laser cavities were about lasers that oscillate, prior the self-organization process occurs, on a set of axial modes sharing the same transverse structure. In a welldesigned broad-area laser diode extended cavity, we theoretically and experimentally demonstrate that the insertion of a photorefractive crystal can also affect the transverse modal structure to force the laser, initially oscillating on several transverse modes, to oscillate on a single transverse and axial mode. This spatial self-organization process leads to an enhancement of the single mode operating range of the laser.

Domains: Optics [physics.optics]

Vincent Reboud, Nicolas Dubreuil, Pierre Fournet, Gilles Pauliat, Gérald Roosen, et al.. Self-induced transverse mode selection in a photorefractive extended cavity laser diode. Optics Express, 2006, 14 (7), pp.2735-2743. ⟨hal-00867480⟩