G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 6/028 (2006.01) G02B 6/34 (2006.01)
Patent
CA 2619385
An interface device for performing mode transformation in optical waveguides includes an optical waveguide core for propagating light of a particular wavelength or a plurality of wavelengths. The optical waveguide core terminates in a subwavelength grating configured to change the propagation mode of the light. The subwavelength grating has a pitch sufficiently less than the wavelength of the light to frustrate diffraction. The device can thus serve as an optical coupler between different propagating media, or as an anti- reflective or high reflectivity device.
Cheben Pavel
Densmore Adam
Janz Siegfried
Lapointe Jean
Schmid Jens
Marks & Clerk
National Research Council Of Canada
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