Patent ID: 7881571
Filing Date: 2011-02-01
Classification: B82Y,G02B

Abstract:
1. An optical coupling device ( 100 ) intended for optically coupling an optical wave of a first optical component towards a second optical component, said coupling device comprising: a support substrate ( a first layer ( a second layer ( wherein the direction of periodicity of the rows of the first patterns ( wherein the rows of the first patterns extend over a distance greater than or equal to the wavelength in the void of the optical wave intended to be coupled, wherein the first patterns have a width less than or equal to a tenth of the wavelength of the optical wave intended to be coupled, and the period of these first patterns is between 50 nm and 1 μm, the width being the dimension of a pattern in the direction of periodicity, and wherein the second patterns are arranged so as to form a periodic diffraction grating.