Nonlinear beam self-cleaning in a coupled cavity composite laser based on multimode fiber
| Affiliation auteurs | !!!! Error affiliation !!!! |
| Titre | Nonlinear beam self-cleaning in a coupled cavity composite laser based on multimode fiber |
| Type de publication | Journal Article |
| Year of Publication | 2017 |
| Auteurs | Guenard R., Krupa K., Dupiol R., Fabert M., Bendahmane A., Kermene V., Desfarges-Berthelemot A., Auguste J.L, Tonello A., Barthelemy A., Millot G., Wabnitz S., Couderc V. |
| Journal | OPTICS EXPRESS |
| Volume | 25 |
| Pagination | 22219-22227 |
| Date Published | SEP 18 |
| Type of Article | Article |
| ISSN | 1094-4087 |
| Résumé | We study a coupled cavity laser configuration where a passively Q-switched Nd: YAG microchip laser is combined with an extended cavity, including a doped multimode fiber. For appropriate coupling levels with the extended cavity, we observed that beam self-cleaning was induced in the multimode fiber thanks to nonlinear modal coupling, leading to a quasi-single mode laser output. In the regime of beam self-cleaning, laser pulse duration was reduced from 525 to 225 ps. We also observed a Q-switched mode-locked operation, where spatial self-cleaning was accompanied by far-detuned nonlinear frequency conversion in the active multimode fiber. (C) 2017 Optical Society of America |
| DOI | 10.1364/OE.25.022219 |