Asymmetric photonic crystal waveguide element having...

Details Asymmetric photonic crystal waveguide element having... Asymmetric photonic crystal waveguide element having...

2006-05-30

2006-05-30

Kianni, Kaveh (Department: 2883)

Optical waveguides

With optical coupler

Particular coupling function

C385S129000

Reexamination Certificate

active

07054524

ABSTRACT:
A slab photonic crystal waveguide that preserves the parity of guided modes. The waveguide includes a photonic crystal layer interposed between two dielectric layers. The photonic crystal layer includes a periodic arrangement of asymmetrically shaped dielectric regions within a surrounding dielectric material. The waveguide precludes conversion of the state of parity of an introduced input mode by maintaining a symmetric mode field distribution. A symmetric mode field distribution is attained through variations in the dielectric constants of the dielectric layers that compensate for asymmetric mode localization tendencies associated with the asymmetric periodically arranged dielectric regions within the photonic crystal layer.

REFERENCES:
patent: 6640034 (2003-10-01), Charlton et al.
patent: 2004/0109644 (2004-06-01), Assefa et al.
patent: 2004/0156610 (2004-08-01), Charlton et al.
patent: 2005/0105869 (2005-05-01), Forbes et al.
patent: 2005/0118420 (2005-06-01), Kim et al.

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