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.
Likhachev
Mikhail E
ME
Fiber Optics Research Center of RAS, 38 Vavilov Street, Moscow, 119333, Russia. likhachev@fo.gpi.ru
Pryamikov
Andrey D
AD
Gaponov
Dmitry A
DA
Bubnov
Mikhail M
MM
Salganskii
Mikhail Yu
MY
Khopin
Vladimir F
VF
Guryanov
Aleksei N
AN
Février
Sébastien
S