We study the dispersive properties of photonic crystal fibers (PCF's) with elliptical air holes. The unusual guidance of PCF leads to novel behavior of the birefringence, group-velocity walk-off, and dispersion parameters, including the possibility of zero walk-off with high birefringence in the single-mode regime. A number of these effects are closely tied to the underlying radiation states of the air-hole lattice.
© 2001 Optical Society of America
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2420) Fiber optics and optical communications : Fibers, polarization-maintaining
(060.2430) Fiber optics and optical communications : Fibers, single-mode
M. J. Steel and R. M. Osgood, Jr., "Elliptical-hole photonic crystal fibers," Opt. Lett. 26, 229-231 (2001)