title: Polarization-independent linear waveguides in 3D photonic crystals.
abstract: Using a symmetry-based approach, we have designed polarization-independent waveguides in a 3D photonic crystal. A comprehensive series of numerical experiments, involving the propagation of pulsed signals through long straight waveguide sections and sharp bends, quantitatively evaluates the bend-transmission coefficient over the entire bandwidth of the corresponding guided modes. High (approximately 95%) polarization-independent bend transmission is achieved within a certain frequency range.
authors.affiliation: Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
authors.forename: E
authors.initials: E
authors.lastname: Lidorikis
authors.forename: M L
authors.initials: ML
authors.lastname: Povinelli
authors.forename: S G
authors.initials: SG
authors.lastname: Johnson
authors.forename: J D
authors.initials: JD
authors.lastname: Joannopoulos