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

Abstract : 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.
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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, Optical Society of America, 2006, 14 (7), pp.2735-2743. ⟨hal-00867480⟩

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