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公开(公告)号：KR1020130068156A
公开(公告)日：2013-06-26
申请号：KR1020110134352
申请日：2011-12-14
Applicant: 한국전자통신연구원
CPC classification number: H04B10/614 , H04B10/0799
Abstract: PURPOSE: A device for measuring the performance of a coherent light receiver is provided to measure a common mode removal rate directly and accurately. CONSTITUTION: A device for measuring the performance of a coherent light receiver comprises a beam splitter(210), a first optical modulator(221), a variable optical attenuator(230), a second optical modulator(222), a variable optical retarder(240), a first polarization controller, a second polarization controller(252), a network analyzer(260), and a controller(270). The beam splitter splits lights received from a light source into first and second route lights. The first optical modulator receives the first route lights of the beam splitter and performs optical modulation. The variable optical attenuator controls the optical power of the output of the first optical modulator, thereby outputting. The first polarization controller transmits first output signals in which the polarization of the output of the variable optical attenuator is controlled to a coherent light receiver. The second optical modulator receives the second route lights of the beam splitter. The variable optical retarder outputs the output of the second optical modulator by delaying the time of the output of the second optical modulator. [Reference numerals] (210) Beam splitter; (221) First optical modulator; (222) Second optical modulator; (230) Variable optical attenuator; (240) Variable optical retarder; (251) First polarization controller; (252) Second polarization controller; (260) Network analyzer; (270) Controller; (AA) Electric signal
Abstract translation: 目的：提供一种用于测量相干光接收机性能的设备，用于直接和准确地测量共模移除速率。 构成：用于测量相干光接收机的性能的装置包括分束器（210），第一光调制器（221），可变光衰减器（230），第二光调制器（222），可变光延迟器 240），第一偏振控制器，第二偏振控制器（252），网络分析器（260）和控制器（270）。 分束器将从光源接收的光分成第一和第二路线灯。 第一光调制器接收分束器的第一路由光并执行光调制。 可变光衰减器控制第一光调制器的输出的光功率，从而输出。 第一偏振控制器传输第一输出信号，其中可变光衰减器的输出的极化被控制到相干光接收器。 第二光调制器接收分束器的第二路灯。 可变光学延迟器通过延迟第二光学调制器的输出时间来输出第二光学调制器的输出。 （附图标记）（210）分束器; （221）第一光调制器; （222）第二光调制器; （230）可变光衰减器; （240）可变光学延迟器; （251）第一偏振控制器; （252）第二偏振控制器; （260）网络分析仪; （270）控制器; （AA）电信号
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公开(公告)号：KR1020110044453A
公开(公告)日：2011-04-29
申请号：KR1020090101134
申请日：2009-10-23
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/50 , H04B10/60
CPC classification number: H04L25/0226 , H04B10/532 , H04B10/548 , H04J14/06 , H04L27/2613
Abstract: PURPOSE: A polarization division multiplexed optical OFDM(Orthogonal Frequency Division Multiplexing) transceiver is provided to improve the allowed value due to a non linear effect by reducing electric power difference between adjacent training symbols. CONSTITUTION: A data separation unit multiplexes a transmission signal into a plurality of groups. A training signal generation unit(160) allocates a plurality of training symbols about each OFDM data. The training signal generation unit allocates consecutive data at a time domain about each training symbols in order to generate '0'. A polarization multiplex unit(180) outputs polarization division multiplexed optical OFDM signal corresponding to each polarization component by performing polarization division multiplexing.
Abstract translation: 目的：提供一种偏振分复用光OFDM（正交频分复用）收发器，通过减少相邻训练符号之间的电功率差异来提高由非线性效应引起的允许值。 构成：数据分离单元将发送信号复用为多个组。 训练信号生成单元（160）分配关于每个OFDM数据的多个训练符号。 训练信号生成单元在时域上分配关于每个训练符号的连续数据，以生成“0”。 极化复用单元（180）通过进行极化分割复用来输出与各极化分量对应的偏振复用光OFDM信号。
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公开(公告)号：KR1020080110975A
公开(公告)日：2008-12-22
申请号：KR1020080125139
申请日：2008-12-10
Applicant: 한국전자통신연구원
IPC: H01S5/12
CPC classification number: H01S5/1243 , H01S5/125 , H01S5/3211
Abstract: A modulator integrated distributed feedback laser diode removing operation property fluctuation of laser by light and manufacturing method thereof are provided to apply EML(Electro Modulated Laser) in ultra high speed optical communications system by forming a slope on a light output side of the modulator by etching process. A modulator integrated distributed feedback laser diode comprises a semiconductor substrate(13), a N-type semiconductor doped layer, a active layer, a P-type semiconductor doped layer, a N-type electrode, and a P-type electrode. The N-type semiconductor doped layer, active layers(16, 17), and the P-type semiconductor doped layer are laminated on the semiconductor substrate as an optical guide form. The N-type electrode is formed on the N-type semiconductor doped layer as a ground electrode. The P-type electrode is formed on the P-type semiconductor doped layer with two sections. The two sections of the P-type electrode are arranged on respective the modulator and the distributed feedback laser.
Abstract translation: 提供调制器集成分布反馈激光二极管，通过光除去激光器的操作特性波动及其制造方法，以通过在调制器的光输出侧通过蚀刻形成斜率来在超高速光通信系统中应用EML（电调制激光器） 处理。 调制器集成分布反馈激光二极管包括半导体衬底（13），N型半导体掺杂层，有源层，P型半导体掺杂层，N型电极和P型电极。 N型半导体掺杂层，有源层（16,17）和P型半导体掺杂层作为光导形式层压在半导体衬底上。 N型电极形成在N型半导体掺杂层上作为接地电极。 P型电极形成在具有两个部分的P型半导体掺杂层上。 P型电极的两个部分分别布置在调制器和分布式反馈激光器上。
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公开(公告)号：KR1020040057855A
公开(公告)日：2004-07-02
申请号：KR1020030016276
申请日：2003-03-15
Applicant: 한국전자통신연구원
IPC: H01L31/10
Abstract: PURPOSE: A light receiving device is provided to reduce operation voltage and improve bandwidth by using a quantum well type structure as a light absorption layer. CONSTITUTION: A light receiving device is provided with a lower cladding layer(301a) including an N type doping region, a light absorption layer, an upper cladding layer(305) including a P type doping region, and an ohmic electrode connected with each cladding layer. The P type doping region is prolonged into the light absorption layer as much as a predetermined length. The distance between the N type and P type doping region is in the range of 0.6-1.2 μm. A quantum well type structure is used as the light absorption layer. The quantum well type structure is completed by alternately forming a quantum well barrier(302) and a quantum well layer(303).
Abstract translation: 目的：提供一种光接收装置，通过使用量子阱型结构作为光吸收层来降低工作电压并提高带宽。 构成：光接收装置设置有包括N型掺杂区域的下包层（301a），光吸收层，包括P型掺杂区域的上包层（305）和与每个包层连接的欧姆电极 层。 P型掺杂区域长达预定长度的光吸收层。 N型和P型掺杂区之间的距离在0.6-1.2μm的范围内。 使用量子阱型结构作为光吸收层。 通过交替地形成量子阱势垒（302）和量子阱层（303）来完成量子阱类型结构。
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公开(公告)号：KR1020140094350A
公开(公告)日：2014-07-30
申请号：KR1020130007084
申请日：2013-01-22
Applicant: 한국전자통신연구원
IPC: H04B10/07
CPC classification number: H04B10/0779
Abstract: The present invention relates to a measuring device and a method for measuring signal transmission time difference thereof. According to the present invention, the method for measuring signal transmission time difference includes the steps of: when a first optical line is inserted into a first passage and a second optical line is inserted into a second passage, receiving a first signal received through the first passage and the second passage; when the second optical line is inserted into the first passage and the first optical line is inserted into the second passage, receiving a second signal received through the first passage and the second passage; and measuring screw between the first optical line and the second optical line on the basis of the first signal and the second signal.
Abstract translation: 本发明涉及测量装置及其信号传输时差的测量方法。 根据本发明，用于测量信号传输时差的方法包括以下步骤：当将第一光线插入第一通道并将第二光线插入第二通道时，接收通过第一通道接收的第一信号 通道和第二通道; 当第二光线插入第一通道并且第一光线插入第二通道时，接收通过第一通道和第二通道接收的第二信号; 以及基于第一信号和第二信号测量第一光线和第二光线之间的螺丝。
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Patent Agency Ranking
公开(公告)号：KR101226956B1
公开(公告)日：2013-01-28
申请号：KR1020090101134
申请日：2009-10-23
Applicant: 한국전자통신연구원
IPC: H04B10/2581 , H04B10/50 , H04B10/60
CPC classification number: H04L25/0226 , H04B10/532 , H04B10/548 , H04J14/06 , H04L27/2613
Abstract: 본 발명의 편광 다중 광 OFDM 송신기는, 송신 신호를 복수의 그룹들로 다중화하는 데이터 분리부, 상기 다중화된 그룹들 각각에 포함되어 있는 OFDM(Optical Orthogonal Frequency Division Multiplexing) 데이터 각각에 대해 복수의 훈련 심볼들을 할당하고, 각각의 훈련 심볼에 대해 주파수 영역에서 주기적으로 0의 데이터가 나타날 수 있도록 상기 각각의 훈련 심볼에 대해 시간 영역에서 반복적인 데이터를 할당하는 훈련신호 생성부, 그리고 상기 훈련신호 생성부의 출력에 대해 광주파수 대역 변환 및 편광 다중화를 수행하여, 복수의 편광 성분들에 대응되는 편광 다중 광 OFDM 신호를 출력하는 광상향 변환부 및 편광 다중화부를 포함한다.
편광 다중, 광 OFDM, 채널 추정, 동기화-
公开(公告)号：KR1020120048258A
公开(公告)日：2012-05-15
申请号：KR1020100109803
申请日：2010-11-05
Applicant: 한국전자통신연구원
IPC: G02B6/12
CPC classification number: G02B6/32 , G02B6/12 , G02B6/4214
Abstract: PURPOSE: An optical waveguide structure which includes an inclined mirror and a lens is provided to reduce a focal distance of an optical lens to 0.1mm or less, thereby forming an optical waveguide and an optical lens on the same plane. CONSTITUTION: An optical waveguide comprises a lower clad(201), a waveguide core(202), and a clad film(203). The waveguide core is formed on the lower clad. The clad film is formed on the waveguide core. An optical lens(205) is formed on the surface of the clad film. One terminal end of the optical waveguide forms an inclined surface.
Abstract translation: 目的：提供一种包括倾斜镜和透镜的光波导结构，以将光学透镜的焦距减小到0.1mm以下，从而在同一平面上形成光波导和光学透镜。 构成：光波导包括下包层（201），波导芯（202）和包层膜（203）。 波导芯形成在下包层上。 包层膜形成在波导芯上。 在包覆膜的表面上形成有光学透镜（205）。 光波导的一个终端形成倾斜表面。
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8.发明授权
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公开(公告)号：KR100550011B1
公开(公告)日：2006-02-08
申请号：KR1020030081726
申请日：2003-11-18
IPC: H01L31/105
Abstract: 암전류를 감소시킬 수 있는 메사형 광검출 소자의 제조방법을 개시한다. 개시된 본 발명은 화합물 기판상에 N형의 클래딩층, 광흡수층 및 P형의 클래딩층을 순차적으로 성장시킨다음, 상기 P형의 클래딩층, 광흡수층 및 N형의 클래딩층을 소정 부분 패터닝하여 pin층을 한정한다. 그후에, 상기 pin층의 측벽 노출면에 폴리이미드막을 형성하고, 상기 폴리이미드막을 경화시킨다. 다음, 상기 화합물 기판 및 pin층 상부 각각에 오믹 전극을 형성한다.
광검출 소자, 암전류, 폴리이미드, 열처리. -
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