Polarization-maintaining photonic bandgap Bragg fiber

M.E. Likhachev (1) , A. Pryamikov (1) , Dmitry Gaponov (2) , Mikhail M. Bubnov (1) , M.Yu. Salganskii (3) , Vladimir F. Khapin (3) , Aleksei N. Guryanov (3) , Sébastien Février (2)

1 FORC - Fiber Optics Research Center of the Russian Academy of Sciences
2 PHOTONIQUE
3 Institute of Chemistry of High Purity Substances of RAS

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.

Domaines: Optique / photonique

M.E. Likhachev, A. Pryamikov, Dmitry Gaponov, Mikhail M. Bubnov, M.Yu. Salganskii, et al.. Polarization-maintaining photonic bandgap Bragg fiber. Optics Letters, 2009, 34 (9), pp.1366-1368. ⟨10.1364/OL.34.001366⟩. ⟨hal-00441713⟩