Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2005-04-12
2005-04-12
Lee, Thien M. (Department: 2876)
Optical waveguides
With optical coupler
Input/output coupler
C385S037000, C385S010000, C385S016000, C385S017000, C385S024000, C372S102000
Reexamination Certificate
active
06879754
ABSTRACT:
The present invention discloses a drop-before-add optical routing and switching system. The drop-before-add optical routing and switching system includes an input waveguide for carrying a multiplexed optical signal comprising optical signals transmitted over a plurality of wavelength channels represented by λ1, λ2, λ3, . . . , λN−1and λN, where N is a positive integer wherein the input waveguide extending over a first direction. The drop-before-add optical routing and switching system further includes a plurality of second direction waveguides extending over a second direction and intersecting at N intersections with the input waveguide. The drop-before-add optical routing and switching system further includes a plurality of wavelength selective grating switches each disposed on one of the N intersections for selectively transmitting an optical signal of a selected wavelength into an associated one of the second direction waveguide.
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Chen Jinliang
Ling Peiching
Xu Ming
Zhang Jianjun
Integrated Optics Communications Corporation
Labaze Edwyn
Lee Thien M.
Perkins Coie LLP
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