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公开(公告)号：KR1020080096634A
公开(公告)日：2008-10-31
申请号：KR1020080086907
申请日：2008-09-03
Applicant: 한국전자통신연구원 , 숭실대학교산학협력단
CPC classification number: H01S5/06258 , G02B6/136 , H01S5/12
Abstract: A method for generating terahertz waves using a DFB(Distributed feedback) laser device is provided to change difference between two mode frequencies emitted from a multiregional DFB laser device from a low frequency to a THz region by changing period difference of a diffraction grating. A first diffraction grating is formed in a first DFB region including a lower waveguide(102) on a substrate(101), an active layer(110) formed on the lower waveguide, and a waveguide on the active layer. A second diffraction grating is formed in a second DFB region which is separated from the first DFB region and includes the lower waveguide, the active layer, and the upper waveguide on the substrate. A phase tuning section is formed between the first DFB region with the first diffraction grating and the second DFB region with the second diffraction grating. A first oscillating wave and a second oscillating wave are generated in the first and second DFB regions by supplying a first current to the first DFB region with the first diffraction grating and a second current to the second DFB region with the second diffraction grating. The phases of the fist and second oscillating waves are controlled by supplying a phase control current to the phase tuning section. The first and second oscillating waves with controlled phases are photo-mixed.
Abstract translation: 提供了一种使用DFB（分布式反馈）激光装置产生太赫兹波的方法，通过改变衍射光栅的周期差来改变从多波段DFB激光装置发射的两个模式频率从低频到太赫兹区域的差异。 第一衍射光栅形成在包括在基底（101）上的下波导（102），形成在下波导上的有源层（110）和有源层上的波导的第一DFB区域中。 第二衍射光栅形成在与第一DFB区分离并且在衬底上包括下波导，有源层和上波导的第二DFB区中。 在具有第一衍射光栅的第一DFB区域和具有第二衍射光栅的第二DFB区域之间形成相位调谐部分。 通过用第一衍射光栅向第一DFB区域提供第一电流，并且通过用第二衍射光栅向第二DFB区域提供第二电流，在第一和第二DFB区域中产生第一振荡波和第二振荡波。 通过向相位调谐部提供相位控制电流来控制第一和第二振荡波的相位。 具有受控相位的第一和第二振荡波是光混合的。
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公开(公告)号：KR100734868B1
公开(公告)日：2007-07-03
申请号：KR1020050121240
申请日：2005-12-10
Applicant: 한국전자통신연구원
CPC classification number: H04B10/2504
Abstract: 본 발명은 광통신(optical communication)에 쓰이는 광송수신기로서, 광원과 수광소자 사이에 전기적 교화(crosstalk)가 억제되는 광송수신기(optical transceiver) 모듈을 제공한다. 그 광송수신기 모듈은 광송수신기( optical transceiver)에 있어서, 기판에 함께 집적되는 광원 및 수광소자를 구비한 광송수신소자; 광원을 구동하는 구동회로 및 수광소자의 신호를 읽어내는 검출회로를 구비한 회로부; 및 기판 및 접지(ground) 사이에 연결되고 상기 광원과 수광소자 사이의 전기적 교화(crosstalk)를 방지하는 교화 방지수단;을 포함한다.
광송수신기(optical transceiver), 광원(optical source), 레이저 다이오드(Laser Diode), 수광소자(photodetector), 교화(crosstalk), 단일기판 광송수신기(monolithic optical transceiver)-
公开(公告)号：KR100576710B1
公开(公告)日：2006-05-03
申请号：KR1020030090569
申请日：2003-12-12
Applicant: 한국전자통신연구원
IPC: G02B6/12
Abstract: 본 발명은 전기 광학적 크로스토크 및 수율을 개선할 수 있는 트랜스미터 및 리시버를 포함하는 양방향 모듈 및 그 제조방법을 개시한다. 개시된 본 발명은, 트랜스미터 및 리시버로 구성되는 양방향 모듈로서, 상기 트랜스미터는 외부 공동(external cavity)을 갖는 DFB(distributed feedback) 레이저 다이오드를 포함한다.
양방향 모듈, 레이저 다이오드, 크로스토크, 외부 공동-
54.发明公开
公开(公告)号：KR1020040094190A
公开(公告)日：2004-11-09
申请号：KR1020030028186
申请日：2003-05-02
Applicant: 한국전자통신연구원
IPC: H01S3/10
CPC classification number: H01S5/06256 , H01S5/028 , H01S5/06258 , H01S5/1209 , H01S5/125 , H01S5/2205 , H01S5/227
Abstract: PURPOSE: An SG-DFB(Sampled Grating Distributed Feed-Back) tunable semiconductor laser WITH an SG-DBR(Sampled Grating Distributed Bragg Reflector) is provided to tune a wavelength by integrating an SG-DFB structure and an SG-DBR structure and forming a phase control region of the SG-DFB structure. CONSTITUTION: A sampled grating(39) is formed on an n-type InP substrate(31) used as a lower clad layer. A phase control region of an InGaAsP waveguide and a gain region of an active layer are formed on the sampled grating. A p-type InP clad layer(32) used as an upper clad layer is formed thereon. A plurality of electrodes are formed on the p-type InP clad layer. A phase control region electrode(36) is formed on the phase control region. A gain region electrode(37) is formed on the gain region. A non-reflective thin film(33) is formed on a section of a semiconductor laser diode.
Abstract translation: 目的：提供具有SG-DBR（采样光栅分布式布拉格反射器）的SG-DFB（采样光栅分布式反馈）可调谐半导体激光器，通过集成SG-DFB结构和SG-DBR结构并形成 SG-DFB结构的相位控制区域。 构成：在用作下包层的n型InP衬底（31）上形成采样光栅（39）。 在采样光栅上形成InGaAsP波导的相位控制区域和有源层的增益区域。 在其上形成用作上覆盖层的p型InP覆盖层（32）。 在p型InP覆盖层上形成多个电极。 相位控制区电极（36）形成在相位控制区域上。 增益区电极（37）形成在增益区上。 在半导体激光二极管的一部分上形成非反射薄膜（33）。
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Patent Agency Ranking
公开(公告)号：KR1020150043193A
公开(公告)日：2015-04-22
申请号：KR1020140021915
申请日：2014-02-25
Applicant: 한국전자통신연구원
IPC: H01L31/00 , H01L31/0232
Abstract: 본발명은테라헤르츠연속파발생/검출용포토믹서에관한것으로서, 비팅(Beating) 광이입사되는광 전도체; 및상기광 전도체의양 측면에형성되고, 테라헤르츠주파수의전류를급전(Feeding)받는복수의안테나급전전극;을포함하는것을특징으로한다.
Abstract translation: 本发明涉及一种用于产生和检测太赫兹连续波的光混合器。 本发明包括输入打浆光的光导体和形成在光导体的两侧并接收太赫兹频率的电流的多个天线馈电电极。
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公开(公告)号：KR1020140084866A
公开(公告)日：2014-07-07
申请号：KR1020120154839
申请日：2012-12-27
Applicant: 한국전자통신연구원
IPC: H01S1/00
CPC classification number: H01L31/028 , H01L31/085
Abstract: Disclosed are an apparatus for generating/detecting a terahertz wave using graphene and a method for manufacturing the same. The apparatus for generating/detecting a terahertz wave includes a substrate which has an active region and a transmission region, a lower metal layer which is extended in a first direction on the active region and the transmission region of the substrate, a graphene layer which is arranged on the lower metal layer of the active region, and an upper metal layers which are extended in the first direction on the substrate of the transmission region and the graphene layer of the active region. Here, a terahertz wave can be generated or amplified by surface plasmon polaritons which are induced at the boundary surface between the lower metal layer and the graphene layer by a non-tilt laser beam which is applied to the graphene layer and the lower metal layer.
Abstract translation: 公开了使用石墨烯生成/检测太赫兹波的装置及其制造方法。 用于产生/检测太赫波的装置包括具有有源区和透射区的基板，在有源区上沿第一方向延伸的下金属层和基板的透射区，石墨烯层是 和布置在有源区的下金属层上的上金属层，以及在透射区的基板和有源区的石墨烯层上沿第一方向延伸的上金属层。 这里，可以通过施加在石墨烯层和下金属层上的非倾斜激光束在表面等离子体激元中产生或放大太赫兹波，这些表面等离子体激元在下金属层和石墨烯层之间的边界表面处被感应。
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公开(公告)号：KR1020140031070A
公开(公告)日：2014-03-12
申请号：KR1020120109025
申请日：2012-09-28
Applicant: 한국전자통신연구원
Abstract: The contactless thickness measurement apparatus according to the present invention comprises; a laser generating device to generate a first laser beam of a first frequency and a second laser beam of a second frequency other than the first frequency; a coupler to couple the generated first and second laser beams; a terahertz wave transmitter to receive the first optical signal outputted from the coupler and to generate terahertz continuous wave by the inputted first optical signal and the imposed bias; an optical delay line to delay the second optical signal outputted from the coupler; and a terahertz wave receiver to receive the terahertz continuous wave having transmitted through the sample and to detect photocurrent by homodyne method using the received terahertz continuous wave and the delayed second optical signal, wherein the thickness of the sample is a value corresponding to the photocurrent.
Abstract translation: 根据本发明的非接触式厚度测量装置包括： 激光产生装置，用于产生第一频率的第一激光束和除第一频率之外的第二频率的第二激光束; 用于耦合所产生的第一和第二激光束的耦合器; 太赫兹波发射器，用于接收从耦合器输出的第一光信号，并通过输入的第一光信号和施加的偏置产生太赫兹连续波; 光延迟线，用于延迟从耦合器输出的第二光信号; 以及太赫兹波接收器，用于接收通过样品传输的太赫兹连续波，并使用接收的太赫兹连续波和延迟的第二光信号通过零差方法检测光电流，其中样品的厚度是对应于光电流的值。
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公开(公告)号：KR1020130140940A
公开(公告)日：2013-12-26
申请号：KR1020120051117
申请日：2012-05-14
Applicant: 한국전자통신연구원
CPC classification number: H01L31/02 , G02F1/3534 , G02F2203/13 , H01L31/0232 , H01L31/02327 , H01L31/105 , H01S5/005 , H01S5/0092 , H01S5/4012 , H01S5/4087 , H03B2200/0084
Abstract: Disclosed in the present invention are a photo detector and an optical device including the same. The device includes: first and second lasers which generate first and second laser beams; an optical waveguide which is connected to the first and second lasers; and a photo detector which detects the first and second laser beams transmitted through the optical waveguide, wherein the photo detector includes: a substrate; a first impurity layer on the substrate; an absorption layer on the first impurity layer; and a second impurity layer on the absorption layer. The absorption layer generates terahertz waves by the beating of the first and second laser beams and is able to have a thickness less than 0.2 micrometer. [Reference numerals] (12) First laser;(14) Second laser;(30) Photodetector;(50) Output circuit
Abstract translation: 在本发明中公开了一种光检测器和包括该光检测器的光学器件。 该装置包括：产生第一和第二激光束的第一和第二激光器; 连接到第一和第二激光器的光波导; 以及光检测器，其检测透过所述光波导的所述第一和第二激光束，其中，所述光检测器包括：基板; 衬底上的第一杂质层; 第一杂质层上的吸收层; 和吸收层上的第二杂质层。 吸收层通过第一和第二激光束的跳动产生太赫兹波，并且能够具有小于0.2微米的厚度。 （附图标记）（12）第一激光器;（14）第二激光器;（30）光电检测器;（50）输出电路
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公开(公告)号：KR101290150B1
公开(公告)日：2013-07-26
申请号：KR1020090111652
申请日：2009-11-18
Applicant: 한국전자통신연구원
IPC: H01L33/08
Abstract: 본 발명은 고효율 반도체 발광 소자에 관한 것으로, 본 발명에 따른 반도체 발광 소자는 하부전극, 발광층 및 상부전극을 포함하는 반도체 발광 소자에 있어서, 상기 발광층은 실리콘 나노 결정을 포함하고, 상기 발광층 상부에 서로 다른 밴드 갭을 갖는 박막을 교대로 성장시킨 다층 구조의 도핑층을 포함한다. 이와 같은 서로 다른 밴드갭을 갖는 박막을 교대로 성장시킨 다층 구조의 도핑층을 발광층 상부에 포함시킴에 따라서, 발광층으로의 캐리어 주입효율을 증가시켜 궁극적으로 발광 효율을 증가시킨다.
발광, 소자, 효율, 밴드갭
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