Patent ID: 9057844
Filing Date: 2015-06-16
Classification: G02B,Y10T

Abstract:
1. A method for forming an optical coupling device, the method comprising: forming a first waveguide on a substrate; forming a grating structure in the first waveguide for directing light in a first direction; forming a second waveguide on the first waveguide; forming a cutout in the second waveguide, wherein the cutout is located between an angled surface of the second waveguide for directing the light in a second direction different from the first direction and another surface of the second waveguide; forming a groove in at least the first and second waveguides; and inserting a coupled fiber into the groove; wherein forming the cutout in the second waveguide comprises removing a part of the second waveguide so that the cutout comprises a vacant area located between a first portion of the second waveguide including the another surface as a side of the first portion, and a second portion of the second waveguide including the angled surface as a side of the second portion.