Open AccessScaling the effective area of higher-order-mode erbium-doped fiber amplifiers
Author(s) -
Jeffrey W. Nicholson,
John M. Fini,
A. DeSantolo,
X. Liu,
K. Feder,
Paul S. Westbrook,
V. R. Supradeepa,
Eric M. Monberg,
F. DiMarcello,
R. Ortiz,
C. Headley,
D. J. DiGiovanni
Publication year - 2012
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.20.024575
Subject(s) - optics , materials science , amplifier , mode volume , erbium , fiber amplifier , doping , scaling , fiber laser , fiber , mode (computer interface) , optical fiber , optoelectronics , dispersion shifted fiber , physics , fiber optic sensor , cmos , composite material , geometry , mathematics , computer science , operating system
We demonstrate scaling of the effective area of higher-order mode, Er-doped fiber amplifiers. Two Er-doped higher-order mode fibers, one with 3800 μm(2) A(eff) in the LP(0,11) mode, and one with 6000 μm(2) effective area in the LP(0,14) mode, are demonstrated. Output beam profiles show clean higher order modes, and S(2) imaging measurements show low extraneous higher order mode content. CW and pulsed amplifier experiments are reported. Nanosecond pulses are amplified to 0.5 mJ pulse energy with 0.5 MW peak power.