Phase-locking in fiber laser arrays
| Autor: | Heinz P. Weber, Th. Graf, A N Kireev |
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| Rok vydání: | 2006 |
| Předmět: | |
| Zdroj: | Laser Physics Letters. 4:50-56 |
| ISSN: | 1612-202X 1612-2011 |
| DOI: | 10.1002/lapl.200610066 |
| Popis: | Evanescently coupled fiber laser arrays are investigated as a powerful and compact all-solid-state source of coherent radiation for high-power applications. The micro-structured multiple-core design provides a novel power scaling technique and overcomes traditional restrictions of single-core fiber lasers. The increased bending loss stability and the mode selectivity of the trigonal array was proven for the first time on the basis of a rigorous vector coupled-mode theory. Phase-locking in the in-phase supermode is predicted as a combined effect of the strong evanescent coupling and the bending loss mode selection. In its simplest configuration with three cores in a trigonal arrangement, a 2.79 fold power scaling is expected with an almost diffraction limited beam quality. |
| Databáze: | OpenAIRE |
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