Chalker Flores, LLP
Method of making an enhanced coupling strength grating having a cover layer
The present invention includes an optical waveguide with a grating and a method of making the same for increasing the effectiveness of the grating. In one example, the grating is at least partially covered by a liner layer disposed on at least a portion of a grating; and a cover layer disposed on the liner layer, wherein a first material selected for the core and ridges and a second material selected for the liner layer are selected to provide a difference in the index of refraction between the first and second material that is sufficient to provide a contrast therebetween.
Southern Methodist University Oracle International Corporation
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Ruo-Hua Guoliang Xuezhe Jin Gary A. Jerome K. Jay B. Ashok V.
He Li Zheng Yao Evans Butler Kirk Krishnamoorthy