Optical coupler having improved efficiency

Details Optical coupler having improved efficiency Optical coupler having improved efficiency

G - Physics

02

B

18/121, 26/197,

G02B 6/30 (2006.01)

Patent

CA 1082965

Abstract of the Disclosure The optical efficiency, with which a coupling portion of a fiber-optic can be coupled by evanescent fields to a planar optical waveguide through a phase-matching diffraction grating on the surface of the planar optical waveguide, is increased by deforming the coupling portion so that it is a negative replica of the undulating surface of the diffraction grating.

258533

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