Polarization-independent linear waveguides in 3D photonic crystals.
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.
Lidorikis
E
E
Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Povinelli
M L
ML
Johnson
S G
SG
Joannopoulos
J D
JD