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公开(公告)号：US10310159B2
公开(公告)日：2019-06-04
申请号：US15737386
申请日：2016-06-01
发明人： Shigeo Nagashima , Yoshiteru Jinnouchi , Takashi Nakayama , Hiroki Kawashiri , Ikuo Ogawa , Yusuke Nasu , Shunichi Soma
摘要： In the case of implementing a polarization separation circuit, a polarization rotator, and the like by inserting a thin-film element into a substrate in one optical interference circuit, one common large-sized groove shared among a plurality of thin-film elements for their insertion has been formed. The optical waveguide type device of the present invention is configured such that at least one groove intersects only one corresponding optical waveguide for inserting the thin-film element and does not intersect other optical waveguides adjacent to the one corresponding optical waveguide. This groove substantially has a rectangular shape, and has a minimum size adapted to the thin-film element to be inserted so as to stably hold and fix the thin-film element in the groove. Adjacent grooves are formed so as to be arranged such that their portions in a direction substantially vertical to the optical waveguide are facing each other.
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公开(公告)号：US20180136392A1
公开(公告)日：2018-05-17
申请号：US15737386
申请日：2016-06-01
发明人： Shigeo Nagashima , Yoshiteru Jinnouchi , Takashi Nakayama , Hiroki Kawashiri , Ikuo Ogawa , Yusuke Nasu , Shunichi Soma
CPC分类号： G02B6/125 , G02B6/12 , G02B6/12004 , G02B6/126 , G02B6/13 , G02B6/136 , G02B2006/12116
摘要： In the case of implementing a polarization separation circuit, a polarization rotator, and the like by inserting a thin-film element into a substrate in one optical interference circuit, one common large-sized groove shared among a plurality of thin-film elements for their insertion has been formed. The optical waveguide type device of the present invention is configured such that at least one groove intersects only one corresponding optical waveguide for inserting the thin-film element and does not intersect other optical waveguides adjacent to the one corresponding optical waveguide. This groove substantially has a rectangular shape, and has a minimum size adapted to the thin-film element to be inserted so as to stably hold and fix the thin-film element in the groove. Adjacent grooves are formed so as to be arranged such that their portions in a direction substantially vertical to the optical waveguide are facing each other.
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公开(公告)号：US20220399467A1
公开(公告)日：2022-12-15
申请号：US17619070
申请日：2020-06-15
IPC分类号： H01L31/0224 , H01L31/0232 , H01L31/105
摘要： A light shielding structure of an optical circuit of the present invention uses a part of the structure of the light reception element itself to suppress stray light. A stepped electrode that covers an upper surface and side surface of a first semiconductor layer constituting a light absorption portion of the light reception element is formed at a height substantially equal to that of an optical waveguide in the optical circuit, and the light absorption portion of the light reception element is shielded from stray light by a wall-shaped or column-shaped wiring electrode extending substantially perpendicularly to a surface layer of the optical circuit. The light shielding structure of the present invention uses a part of the configuration of the light reception element, is formed integrally with the light reception element, and also has an aspect of the invention of the light reception element.
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