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公开(公告)号：US09728657B2
公开(公告)日：2017-08-08
申请号：US14812981
申请日：2015-07-29
Inventor： Jiho Joo , Gyungock Kim , Myungjoon Kwack , Sang Hoon Kim , Sun Ae Kim , In Gyoo Kim , Jaegyu Park , Jin Hyuk Oh , Ki Seok Jang
IPC: H01L31/0224 , H01L31/0352 , H01L31/107 , H01L31/18
CPC classification number: H01L31/022416 , H01L31/03529 , H01L31/1075 , H01L31/1808 , Y02E10/50 , Y02P70/521
Abstract: Provided is a photodetector including a substrate, a first doped region on the substrate, a second doped region having a ring structure, wherein the second doped region is provided in the substrate, surrounds the first doped region and is horizontally spaced apart from a side of the first doped region, an optical absorption layer on the first doped region, a contact layer on the optical absorption layer, a first electrode on the contact layer, and a second electrode on the second doped region.
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22.发明授权公开(公告)号：US09360621B1
公开(公告)日：2016-06-07
申请号：US14819752
申请日：2015-08-06
Inventor： Jaegyu Park , Myungjoon Kwack , Gyungock Kim , Jiho Joo
CPC classification number: G02B6/12016 , G02B6/1228 , G02B6/14
Abstract: Provided is a flat-top mode generating device. The flat-top mode generating device includes an input waveguide, a double-tapered structure connected to the input waveguide, and an input star coupler connected to the double-tapered structure. The double-tapered structure includes a first part having a first height hat is equal to that of each of the input waveguide and the input star coupler, and a second part disposed in the first part on the plane and having a second height that is less than the first height, the second part being tapered from the input star coupler toward the input waveguide.
Abstract translation: 提供了平顶模式发生装置。 平顶模式发生装置包括输入波导，连接到输入波导的双锥形结构和连接到双锥形结构的输入星形耦合器。 双锥形结构包括具有第一高度帽的第一部分等于输入波导和输入星形耦合器中的每一个的第一部分，以及设置在平面上的第一部分中的第二部分，并且具有较小的第二高度 比第一高度，第二部分从输入星形耦合器向输入波导变细。
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