Adaptive mode control of a few-mode fiber by real-time mode decomposition | Zendy

Liangjin Huang | Zendy; Jinyong Leng | Zendy; Pu Zhou | Zendy; Shaofeng Guo | Zendy; Haibin Lü | Zendy; Xiang’ai Cheng | Zendy

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Adaptive mode control of a few-mode fiber by real-time mode decomposition

Author(s) -

Liangjin Huang,

Jinyong Leng,

Pu Zhou,

Shaofeng Guo,

Haibin Lü,

Xiang’ai Cheng

Publication year - 2015

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.23.028082

Subject(s) - mode volume , optics , polarization maintaining optical fiber , equilibrium mode distribution , fiber laser , materials science , multi mode optical fiber , polarization controller , dispersion shifted fiber , modal , fiber , graded index fiber , optical fiber , laser beam quality , fiber optic sensor , laser , physics , laser beams , polymer chemistry , composite material

A novel approach to adaptively control the beam profile in a few-mode fiber is experimentally demonstrated. We stress the fiber through an electric-controlled polarization controller, whose driven voltage depends on the current and target modal content difference obtained with the real-time mode decomposition. We have achieved selective excitations of LP01 and LP11 modes, as well as significant improvement of the beam quality factor, which may play crucial roles for high-power fiber lasers, fiber based telecommunication systems and other fundamental researches and applications.

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