Highly dispersive large mode area photonic bandgap fiber.
An all-silica photonic bandgap fiber composed of a low-index core surrounded by alternating high- and low-index rings allows us to achieve a large mode area (500 microm(2)) and large chromatic dispersion. Sharp resonances from the even Bragg mode to odd ring modes theoretically lead to 20,000 ps/(nm km) chromatic dispersion when large bends are applied. By nature, sharp resonances are sensitive to inhomogeneities along the fiber length. Under experimental conditions, the resonances are broadened and the dispersion coefficient is decreased to 1000 ps/(nm km). However, to the best of our knowledge, this is the largest dispersion coefficient reported using a large mode area fiber.
Gérôme
Frédéric
F
Xlim, UMR CNRS no. 6172, Limoges, France.
Février
Sébastien
S
Pryamikov
Andrey D
AD
Auguste
Jean-Louis
JL
Jamier
Raphaël
R
Blondy
Jean-Marc
JM
Likhachev
Mikhail E
ME
Bubnov
Mikhail M
MM
Semjonov
Sergei L
SL
Dianov
Evgeny M
EM