title: Experimental investigation of the polarization properties of a hollow core photonic bandgap fiber for 1550 nm.
abstract: The properties of a hollow core photonic bandgap fiber designed for 1.55 um transmission are investigated with special emphasis on polarization issues. Large and strongly wavelength dependent phase and group delays are found. At the same time the principle states of polarization move strongly and erratically as a function of wavelength, leading to strong mode coupling. Wavelength regions with high polarization dependent loss coincide with depolarization due to a polarization dependent coupling to surface modes at these wavelengths.
authors.forename: Mark
authors.initials: M
authors.lastname: Wegmuller
authors.forename: Matthieu
authors.initials: M
authors.lastname: Legré
authors.forename: Nicolas
authors.initials: N
authors.lastname: Gisin
authors.forename: Theis
authors.initials: T
authors.lastname: Hansen
authors.forename: Christian
authors.initials: C
authors.lastname: Jakobsen
authors.forename: Jes
authors.initials: J
authors.lastname: Broeng