Abstract
We report numerical results for the spatiotemporal dynamics of circular-grating distributed-feedback devices with an intensity-dependent refractive index. For the specific geometry and range of variables considered, we find that modulational instabilities do not propagate in these structures. This is due to the 1/r intensity distribution associated with cylindrical waves, which reduces the effectiveness of the self- and cross-phase-modulation nonlinearitics.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 96-102 |
| Number of pages | 7 |
| Journal | Journal of the Optical Society of America B: Optical Physics |
| Volume | 16 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1999 |
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Atomic and Molecular Physics, and Optics