Patent ID: 7003190
Filing Date: 2006-02-21
Classification: G02B,H04Q

Abstract:
1. A wavelength-selective optical switching system comprising: M horizontal waveguides intersected with 2N vertical waveguides, where M and N are positive integers, and wherein j-th waveguide extending in a first vertical direction and (j+1)-th vertical waveguide extending in a second vertical direction where j=1, 2, 3, . . . , N, and said optical switching system is configured to receive an input multiplexed input optical signal from a horizontal bus waveguide disposed next to an i-th horizontal waveguide where i is a closest integer to a positive real number M/2; and a plurality of wavelength selective bridge-waveguides each disposed on an intersection and coupled between said horizontal and vertical waveguides wherein each of said wavelength selective bridge-waveguides comprising a plurality Bragg gratings for selectively transmitting an optical signal with a central wavelength within a spectral range and particular to said Bragg gratings from said bus waveguide to each of said wavelength-selective bridge waveguides.