We report the observation of single and multiple vortex solitons in a self-focusing dissipative system, a broad-area vertical-cavity surface-emitting laser (VCSEL) with frequency-selective feedback by a volume Bragg grating. They are bistable and the transitions between different soliton structures are analysed. The observations qualitatively verify theoretical predictions based on simplified models for a semiconductor laser with frequency-selective feedback.
|Number of pages||10|
|Journal||Journal of Optics (United Kingdom)|
|Publication status||Published - Apr 2013|
- frequency-selective feedback
- laser solitons
- optical vortices