Patent ID: 6594049
Filing Date: 2003-07-15
Classification: H04Q

Abstract:
A routing method, comprising:determining a destination for a packet to be routed; generating a carrier signal having a frequency associated with that destination; modulating the carrier signal with the packet to be routed; polarizing the modulated carrier signal; and applying the polarized modulated carrier signal to a frequency routing device, wherein said frequency routing device includes: at least one input waveguide; a first free space region connected to the at least one input waveguide; a first plurality of output waveguides connected to the first free space region; an optical grating connected to the first plurality of output waveguides comprising a plurality of unequal length waveguides; a plurality of input waveguides connected to the optical grating; a second free space region connected to the plurality of input waveguides; and a second plurality of output waveguides connected to the second free space region, wherein the polarized modulated carrier signal is applied to the at least one input waveguide.