Optical waveguides – Planar optical waveguide
Reexamination Certificate
2005-09-13
2005-09-13
Bovernick, Rodney (Department: 2874)
Optical waveguides
Planar optical waveguide
C385S130000, C385S131000, C385S132000
Reexamination Certificate
active
06944384
ABSTRACT:
The invention is directed to different methods for controlling the positions of the guided modes of the photonic crystal waveguides. Methods based on both rearrangement of the holes and changing the size of the holes are presented. We have observed and explained the appearance of acceptor-type modes and the donor-type waveguides. The ability to tune frequencies of the guided modes within a frequency bandgap is necessary in order to achieve efficient guiding of light within a waveguide (reduced lateral and vertical waveguide losses) as well as to match frequencies of eigen modes of different photonic crystal based devices in order to have good coupling between them.
REFERENCES:
patent: 6101300 (2000-08-01), Fan et al.
patent: 6134369 (2000-10-01), Kurosawa
patent: 2002/0048422 (2002-04-01), Cotteverte et al.
Loncar Marko
Scherer Axel
Vuckovic Jelena
Bovernick Rodney
California Institute of Technology
Dawes Daniel L.
Myers Dawes Andras & Sherman LLP
Pak Sung
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