108 kW spectral beam combination of eight all-fiber superfluorescent sources and their dispersion compensation | Zendy

Ye Zheng | Zendy; Yifeng Yang | Zendy; Jianhua Wang | Zendy; Man Hu | Zendy; Guangbo Liu | Zendy; Xiangyong Zhao | Zendy; Xiaolong Chen | Zendy; Kai Liu | Zendy; Chun Zhao | Zendy; Bing He | Zendy; Jun Zhou | Zendy

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108 kW spectral beam combination of eight all-fiber superfluorescent sources and their dispersion compensation

Author(s) -

Ye Zheng,

Yifeng Yang,

Jianhua Wang,

Man Hu,

Guangbo Liu,

Xiangyong Zhao,

Xiaolong Chen,

Kai Liu,

Chun Zhao,

Bing He,

Jun Zhou

Publication year - 2016

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.24.012063

Subject(s) - optics , materials science , dispersion shifted fiber , fiber bragg grating , diffraction grating , beam (structure) , amplifier , grating , wavelength , optical fiber , optoelectronics , fiber optic sensor , physics , cmos

We report an 8-element spectral beam combination of Yb-doped all fiber superfluorescent sources around 1070 nm wavelength. Each source consists of a 60 mW front-end and a 1.5 kW three-stage fiber amplifier chain. The eight output beamlets are spectrally combined using a home-made polarization-independent multilayer dielectric reflective diffraction grating. 10.8 kW output power is achieved with an efficiency of 94%. Besides, both theoretical and experimental studies of dual grating dispersion compensation scheme have been performed, which is proved to be a prospective way for high brightness spectral beam combination.

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