Open AccessCollective coherent phase combining of 64 fibers
Author(s) -
Jérôme Bourderionnet,
Cindy Bellanger,
Jérôme Primot,
A. Brig
Publication year - 2011
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.017053
Subject(s) - strehl ratio , optics , interferometry , materials science , optical fiber , phase (matter) , shearing (physics) , residual , phase modulation , fiber laser , wavefront , physics , computer science , phase noise , algorithm , quantum mechanics , composite material
A new architecture for active coherent beam combining of a large number of fibers is demonstrated. The approach is based on a self-referenced quadriwave shearing interferometer and active control with arrays of electro-optic ceramic modulators. Coherent phase combining of 64 independent amplified fibers is obtained. This is to our knowledge the highest reported number of combined fibers. A Strehl ratio degradation less than 2dB is achieved with a residual phase error <λ/10 rms.