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专利名称：Optical coupling device发明人：Haruhiko Yoshida申请号：US12182591申请日：20080730公开号：US079286B2公开日：20110301
专利附图：
摘要：An optical coupling device for coupling an optical signal propagating in anoptical fiber or space to an optical waveguide includes a lower cladding layer formed on asubstrate, an optical waveguide formed on the lower cladding layer such that the tip ofthe optical waveguide points to an end portion of the lower cladding layer, and having a
tapered distal end portion, and an upper cladding layer continuously formed on thelower cladding layer and on the distal end portion of the optical waveguide from the endportion of the lower cladding layer to the distal end portion of the optical waveguide,and having a refractive index higher than that of the lower cladding layer. The uppercladding layer draws light having entered the end portion of the lower cladding layertoward the upper cladding layer, and couples the light to the distal end portion of theoptical waveguide.
申请人：Haruhiko Yoshida
地址：Funabashi JP
国籍：JP
代理机构：Ohlandt, Greeley, Ruggiero & Perle, L.L.P.
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