The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 2013
Filed:
Jan. 13, 2012
Pavel Cheben, Ottawa, CA;
Przemek J. Bock, Gloucester, CA;
Jens H. Schmid, Ottawa, CA;
Dan-xia Xu, Gloucester, CA;
Adam Densmore, Victoria, CA;
Siegfried Janz, Ottawa, CA;
Pavel Cheben, Ottawa, CA;
Przemek J. Bock, Gloucester, CA;
Jens H. Schmid, Ottawa, CA;
Dan-Xia Xu, Gloucester, CA;
Adam Densmore, Victoria, CA;
Siegfried Janz, Ottawa, CA;
National Research Council of Canada, Ottawa, Ontario, CA;
Abstract
A waveguide cores consisting of a subwavelength grating permits transmission of light without diffraction in a discontinuous manner, wherein the energy is provided by field hopping between subwavelength material segments of higher index. The use of alternating segments permits design of waveguides having desired effective index, mode confinement factor, birefringence, polarization mode or mode dispersions, polarization dependent loss, thermal sensitivity, or nonlinear optical coefficient. An optical system comprises a waveguide having such a core, clad on at least one side, extending between two ends, and wavelength-limiting optical components in optical communication with the ends.