Optical waveguide and arrayed waveguide grating

专利名称：Optical waveguide and arrayed waveguide

grating

发明人：Keiichi Morita,Kazumi Shimizu,Kouji

Kawashima,Tomoharu Niitsu

申请号：US138801申请日：20170222公开号：US100738B2公开日：20180821

专利附图：

摘要：A technique that does not increase the circuit size, does not make the circuitdesign and manufacturing difficult, and can reduce insertion loss when light enters from a

slab waveguide toward an arrayed waveguide or when the light enters from the arrayedwaveguide toward the slab waveguide. An optical waveguide provided with a slabwaveguide in which a grating is formed therein at a distance from an end, and an arrayedwaveguide whose end is connected to an end of the slab waveguide at a position where aconstructive interference portion of a self-image of the grating is formed. An arrayedwaveguide grating provided with a first input/output waveguide, the above-mentionedoptical waveguide where an end of the slab waveguide on the opposite side of thearrayed waveguide is connected to an end of the first input/output waveguide, a secondslab waveguide connected to an end of the arrayed waveguide on the opposite side ofthe slab waveguide, and a second input/output waveguide connected to an end of thesecond slab waveguide on the opposite side of the arrayed waveguide.

申请人：NTT ELECTRONICS CORPORATION

地址：Yokohama-shi, Kanagawa JP

国籍：JP

代理机构：Ohlandt, Greeley, Ruggiero & Perle, L.L.P.

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