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

ArticleinOptics Letters 32(13):1842-4 · August 2007with17 Reads
Impact Factor: 3.29 · 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.