Open AccessCoherent combining technology of master oscillator power amplifier fiber arrays
Author(s) -
Rui Xiao,
Jing Hou,
M. liu,
Zongfu Jiang
Publication year - 2008
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.16.002015
Subject(s) - optics , amplifier , fiber laser , polarization maintaining optical fiber , dispersion shifted fiber , materials science , phase noise , fiber optic sensor , optical fiber , optoelectronics , physics , cmos
Coherent beam combination of fiber laser array is an important technology of realize high-power, high-radiance fiber laser system. In this paper, Master Oscillator-Power Amplifier scheme is used to realize phase controlling of three ytterbium fiber amplifiers, the experiment results of both two and three fiber amplifiers are given and compared. Far-field patterns with different fill factor are studied experimentally. We perform optical phase-noise measurements of a commercial 1-W ytterbium fiber amplifier using our phase control electronics, the dominant phase noises of the 1-W fiber amplifier are at frequencies below one kilohertz.