Frequency routing device having a wide and substantially...

Details Frequency routing device having a wide and substantially... Frequency routing device having a wide and substantially...

H - Electricity

04

J

H04J 14/02 (2006.01) G02B 6/34 (2006.01)

Patent

CA 2141902

The present invention relates to an optical apparatus that includes a first plurality of waveguides and a first free space region connected to the first plurality of waveguides: A second plurality of waveguides is connected to the first free space region. An optical grating is connected to the second plurality of waveguides and includes a plurality of unequal length waveguides. A third plurality of waveguides is connected to the optical grating and a second free space region is connected to the third plurality of waveguides. At least one waveguide is connected to the second free space region. The first plurality of waveguides includes at least two adjacent waveguides having ends remote from the first free space region. A Y-branch coupler connected to the remote ends of the two adjacent waveguides. The adjacent waveguides are located a predetermined distance apart along the first free space region to produce a specifiable passband width.

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