Abstract
We study numerically optical turbulence using the particular example of a recently
created, ultra-long fibre laser. For normal fibre dispersion, we observed an intermediate state with an extremely narrow spectrum (condensate), which experiences instability and a sharp transition to a fluctuating regime with a wider spectrum. We demonstrate that the number of modes has an impact on the condensate’s lifetime. The smaller the number of modes, the more resistant is the condensate to perturbations. Experimental results show a good agreement with numerical simulations.
created, ultra-long fibre laser. For normal fibre dispersion, we observed an intermediate state with an extremely narrow spectrum (condensate), which experiences instability and a sharp transition to a fluctuating regime with a wider spectrum. We demonstrate that the number of modes has an impact on the condensate’s lifetime. The smaller the number of modes, the more resistant is the condensate to perturbations. Experimental results show a good agreement with numerical simulations.
| Original language | English |
|---|---|
| Pages (from-to) | 2496-2508 |
| Number of pages | 14 |
| Journal | Proceedings of the Royal Society: Series A |
| Volume | 468 |
| Issue number | 2145 |
| Early online date | 2 May 2012 |
| DOIs | |
| Publication status | Published - 8 Sept 2012 |
Bibliographical note
© 2012 The Royal SocietyThis is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Keywords
- optical turbulence
- Raman fibre lasers
- nonlinear optics
- spectral condensate