Article

Passive phase locking of an array of four fiber amplifiers by an all-optical feedback loop.

XLIM, UMR CNRS 6172, 123 Avenue A. Thomas, 87060 Limoges Cedex, France.
Optics Letters (Impact Factor: 3.39). 08/2007; 32(13):1842-4. DOI: 10.1364/OL.32.001842
Source: PubMed

ABSTRACT We report the passive phase locking of an array of four fiber amplifiers in a unidirectional ring cavity. The feedback loop consists of a single-mode fiber that filters intracavity the far-field pattern of the four emitted beams. The pointing of the laser output can be managed by the intracavity filtering.

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