Open Access87 W, narrow-linewidth, linearly-polarized 1178 nm photonic bandgap fiber amplifier
Author(s) -
Mingchen Chen,
Akira Shirakawa,
Christina B. Olausson,
Thomas Tanggaard Alkeskjold
Publication year - 2015
Publication title -
optics express
Language(s) - Polish
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.003134
Subject(s) - laser linewidth , brillouin scattering , optics , materials science , optoelectronics , optical amplifier , optical fiber , physics , laser
High-power narrow-linewidth photonic bandgap fiber amplifier was demonstrated. In order to suppress stimulated Brillouin scattering, the seed linewidth was broadened by applying a random phase noise with an electro-optical modulator. A factor of 15 in terms of Brillouin gain suppression can be theoretically expected. An 87 W linearly-polarized (11 dB PER) and narrow-linewidth (780 MHz FWHM) output was obtained.