Article,

Coherent beam combining and phase noise measurements of ytterbium fiber amplifiers

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Optics Letters, 29 (5): 474--476 (March 2004)MIT.
DOI: 10.1364/OL.29.000474

Abstract

Phase noise characterization of a 10-W Yb fiber amplifier is presented, and we demonstrate phase locking of two fiber amplifiers with near-perfect fringe contrast at power levels of as much as 10 W per fiber. Coherent beam combining is maintained during the turn-on transient as well as in thermal steady-state operation.

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