Open AccessHigh power narrow-linewidth linearly-polarized 1610 nm Er:Yb all-fiber MOPA
Author(s) -
Eisuke Fujita,
Yutaka Mashiko,
Seira Asaya,
Mitsuru Musha,
Masaki Tokurakawa
Publication year - 2016
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.026255
Subject(s) - laser linewidth , materials science , optics , extinction ratio , amplifier , fiber laser , laser , wavelength , laser diode , optoelectronics , diode , physics , cmos
We developed a narrow-linewidth linearly-polarized all-PM-fiber MOPA at the wavelength of 1610 nm. The MOPA consists of a DFB laser diode seed source and three amplifier stages with three different gain fibers. The first amplifier stage employed an Er doped fiber and the second and third amplifier stages employed Er:Yb co-doped fibers. The maximum output power was 8 W. Linewidth of 25 MHz and polarization extinction ratio of 28 dB was obtained. At the maximum output power, no ASE component around 1.55 μm or 1μm was observed.