Mode competition in high power fiber amplifiers | Zendy

Arlee V. Smith | Zendy; J. Joshua Smith | Zendy

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Mode competition in high power fiber amplifiers

Author(s) -

Arlee V. Smith,

J. Joshua Smith

Publication year - 2011

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.19.011318

Subject(s) - optics , materials science , polarization (electrochemistry) , amplifier , mode volume , perpendicular , fiber amplifier , bent molecular geometry , polarization maintaining optical fiber , saturation (graph theory) , optical fiber , optoelectronics , fiber laser , physics , fiber optic sensor , chemistry , cmos , geometry , mathematics , combinatorics , composite material

Using a beam propagation model of Yb3+ doped, CW fiber amplifiers we show that gain saturation by a strong fundamental mode significantly suppresses the growth of higher order modes with parallel polarization, but enhances the growth of higher order modes with perpendicular polarization. We quantify this effect in straight and bent fibers, with full core or restricted area doping.

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