Distributed suppression of stimulated Raman scattering in an Yb-doped filter-fiber amplifier.
Suppression of stimulated Raman scattering (SRS) is demonstrated in a cladding-pumped fiber amplifier. The Yb-doped amplifier fiber design incorporates a high-index ring that resonantly couples SRS wavelengths out of the gain material, thus filtering the gain. Modeling shows that fiber asymmetry plays an important role in the filtering spectrum.
Fini
J M
JM
OFS Laboratories, Somerset, New Jersey 08873, USA. fini@ofsoptics.com
Mermelstein
M D
MD
Yan
M F
MF
Bise
R T
RT
Yablon
A D
AD
Wisk
P W
PW
Andrejco
M J
MJ