Abstract
We investigate the spatial and spectral properties of broad-area vertical-cavity surface-emitting lasers with frequency-selective feedback by a volume Bragg grating. We demonstrate wavelength locking similar to the case of edge emitters but the spatial mode selection is different from the latter. On-axis spatial solitons obtained at threshold give way to off-axis extended lasing states beyond threshold. The investigations focus on a self-imaging external cavity. We analyze how deviations from the self-imaging condition affect the pattern formation and a certain robustness of the phenomena is demonstrated.
| Original language | English |
|---|---|
| Article number | 053812 |
| Number of pages | 8 |
| Journal | Physical Review A |
| Volume | 85 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 10 May 2012 |
Keywords
- vertical-cavity surface-emitting lasers
- spatial emission structures
- self-imaging
- Bragg grating