公开(公告)号：US20150078708A1

公开(公告)日：2015-03-19

申请号：US14329878

申请日：2014-07-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jaegyu PARK ,  Hyundai PARK ,  Jiho JOO ,  Myung joon KWACK ,  Gyungock KIM

IPC: G02B6/26 ,  G02B6/34

CPC classification number: G02B6/262 ,  G02B6/12014 ,  G02B6/34

Abstract: Provided are an optical coupler and an arrayed-waveguide grating structure including the same. The coupler includes a lower clad layer, a core comprising a slab waveguide region disposed on one side of the lower clad layer and a ridge waveguide region disposed on the other side of the lower clad layer, and an upper clad disposed on the core, wherein the ridge waveguide region comprises a self-focusing region configured to focus an optical signal provided form the slab waveguide region and thus to prevent scattering of the optical signal.

Abstract translation: 提供一种光耦合器和包括该光耦合器的阵列波导光栅结构。 耦合器包括下包层，芯包括布置在下包层的一侧上的平板波导区和设置在下包层的另一侧的脊波导区，以及设置在芯上的上包层。 脊状波导区域包括被配置为聚焦从平板波导区域提供的光信号并因此防止光信号的散射的自聚焦区域。

公开(公告)号：US20140175510A1

公开(公告)日：2014-06-26

申请号：US14194723

申请日：2014-03-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dongwoo SUH ,  Sang Hoon KIM ,  Gyungock KIM ,  JiHo JOO

IPC: H01L31/028

CPC classification number: H01L31/028 ,  H01L21/02381 ,  H01L21/0245 ,  H01L21/02532 ,  H01L21/02592 ,  H01L21/0262 ,  H01L21/02667 ,  H01L31/103 ,  H01L31/1808 ,  H01L31/1872 ,  Y02E10/50 ,  Y02P70/521

Abstract: Provided is a germanium photodetector having a germanium epitaxial layer formed without using a buffer layer and a method of fabricating the same. In the method, an amorphous germanium layer is formed on a substrate. The amorphous germanium layer is heated up to a high temperature to form a crystallized germanium layer. A germanium epitaxial layer is formed on the crystallized germanium layer.

Abstract translation: 提供了具有不使用缓冲层形成的锗外延层的锗光电检测器及其制造方法。 在该方法中，在基板上形成无定形锗层。 将非晶锗层加热至高温以形成结晶的锗层。 在结晶的锗层上形成锗外延层。