Integrateable band filter using waveguide grating routers

Details Integrateable band filter using waveguide grating routers Integrateable band filter using waveguide grating routers

2006-03-07

2006-03-07

Kianni, Kaveh (Department: 2883)

Optical waveguides

With optical coupler

Input/output coupler

C385S010000, C385S015000

Reexamination Certificate

active

07010197

ABSTRACT:
The inventors propose herein a novel band filter design for planar lightwave circuits. In one embodiment of the present invention, the band filter includes two waveguide grating routers connected by sets of substantially equal path length waveguides within each set separated on one side, wherein the waveguides of each set are formed such that optical signals having overlapping frequency ranges are propagated through adjacent waveguides. In addition, the waveguides of each set are spaced at their connection to the second waveguide grating router such that optical signals with predetermined optical frequency ranges are routed to selected, respective output ports. Some of the advantages of this novel band filter include compactness, sharp passband corners, and a lack of chromatic dispersion.

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C. R. Doerr et al., “Integrated Band Demultiplexer Using Waveguide Grating Routers”, IEEE Photonics Technology Letters, vol. 15, No. 8, Aug. 2003.

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