Polarization-maintaining photonic bandgap Bragg fiber.
The possibility of fabricating a polarization-maintaining Bragg fiber has been studied. It is shown that violation of the cylindrical symmetry of a Bragg mirror in most cases results in a sharp increase in optical loss, which is caused by resonance transmission through the Bragg mirror at wavelengths near the cutoffs of the modes of the high-index rings with a nonzero azimuthal index. It is shown that placing stress-applied parts or air holes inside the Bragg fiber core allows one to avoid this effect. A polarization-maintaining Bragg fiber with perfect light confinement in the core is demonstrated for the first time to our knowledge.
Fiber Optics Research Center of RAS, 38 Vavilov Street, Moscow, 119333, Russia. likhachev@fo.gpi.ru
Mikhail E
ME
Likhachev
Andrey D
AD
Pryamikov
Dmitry A
DA
Gaponov
Mikhail M
MM
Bubnov
Mikhail Yu
MY
Salganskii
Vladimir F
VF
Khopin
Aleksei N
AN
Guryanov
Sébastien
S
Février