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公开(公告)号：KR1020120020961A
公开(公告)日：2012-03-08
申请号：KR1020100084922
申请日：2010-08-31
Applicant: 한국전자통신연구원
CPC classification number: H01S5/06258 , H01S5/0612 , H01S5/06256 , H01S5/1096 , H01S5/1215 , H01S5/2222
Abstract: PURPOSE: A duplex mode semiconductor laser and a terahertz wave apparatus using the same are provided to stabilize the frequency of a terahertz wave by applying a duplex mode semiconductor laser as a beating source of the terahertz wave. CONSTITUTION: A duplex mode semiconductor laser includes a distributed feedback laser structure section(A) and a distributed bragg reflector laser structure section(C). The distributed feedback laser structure section has a first diffraction grating(145). The distributed bragg reflector laser structure section has a second diffraction grating(135). The distributed feedback laser structure section includes an active waveguide(120). The distributed feedback laser structure section comprises a lower clad layer(110) on a substrate, the active waveguide, a top clad layer(140), and a first current injection electrode(150). An insulating layer(155) and a first micro heater electrode(180) are arranged on the first current injection electrode.
Abstract translation: 目的：提供双工模式半导体激光器和使用它的太赫兹波装置，以通过应用双模半导体激光器作为太赫兹波的击打源来稳定太赫兹波的频率。 构成：双工模式半导体激光器包括分布反馈激光器结构部分（A）和分布式布拉格反射器激光器结构部分（C）。 分布反馈激光器结构部分具有第一衍射光栅（145）。 分布式布拉格反射器激光器结构部分具有第二衍射光栅（135）。 分布式反馈激光器结构部分包括有源波导（120）。 分布式反馈激光器结构部分包括在衬底上的下覆盖层（110），有源波导，顶覆层（140）和第一电流注入电极（150）。 绝缘层（155）和第一微加热器电极（180）布置在第一电流注入电极上。
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公开(公告)号：KR1020080042661A
公开(公告)日：2008-05-15
申请号：KR1020070059228
申请日：2007-06-18
Applicant: 한국전자통신연구원
Abstract: A wavelength converter having a phase controller is provided to improve a manufacturing yield of an optical element by enhancing a destructive interference performance of the optical element. A wavelength converter includes a light splitter(103), first and second SOAs(105A,105B), phase controllers(107A,107B), and a photocoupler(111). The light splitter splits an input optical signal. The first and second SOAs magnify and shift the phase of respective optical signals from the light splitter, and output the optical signals. The phase controllers shift the phase of the optical signal from the first and second SOAs(Semiconductor Optical Amplifiers) according to an applied current and includes a pair of metal pads and a micro heater. The metal pad receives the applied current. The micro heater changes a refractive index of the wavelength converter according to the current applied through the metal pad. The photocoupler couples the phase-shifted optical signals with each other and outputs the coupled optical signal.
Abstract translation: 提供具有相位控制器的波长转换器，以通过增强光学元件的相消干涉性能来提高光学元件的制造成品率。 波长转换器包括分光器（103），第一和第二SOA（105A，105B），相位控制器（107A，107B）和光电耦合器（111）。 光分路器分离输入光信号。 第一和第二SOAs放大并移动来自光分路器的相应光信号的相位，并输出光信号。 相位控制器根据施加的电流移动来自第一和第二SOA（半导体光放大器）的光信号的相位，并且包括一对金属焊盘和微加热器。 金属垫接收所施加的电流。 微加热器根据通过金属垫施加的电流来改变波长转换器的折射率。 光电耦合器将相移的光信号彼此耦合，并输出耦合的光信号。
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公开(公告)号：KR100422372B1
公开(公告)日：2004-03-10
申请号：KR1020010017918
申请日：2001-04-04
Applicant: 한국전자통신연구원
IPC: H04B10/2581
CPC classification number: G02B6/305 , G02B2006/12173 , G02B2006/12176 , G02B2006/12195
Abstract: The present invention relates to a multi-channel wavelength division multiplexer/demultiplexer capable of efficiently coupling or separating wavelength multiplexed optical signals. The multi-channel wavelength division multiplexer/demultiplexer according to the present invention comprises a band splitting means for splitting the band of wavelength multiplexed optical signals (lambd1~lambdn) into M bands, a demultiplexing means for separating each band split by the band splitting means into a plurality of single wavelength channels, and a multiplexing means for coupling the single wavelength channels separated by the demultiplexing means. Therefore, the present invention can significantly increase the number of available wavelength channels while minimizing optical loss of wavelength channels.
Abstract translation: 本发明涉及能够高效地耦合或分离波长复用光信号的多信道波分复用器/解复用器。 根据本发明的多信道波分复用器/信号分离器包括一个频带分割装置，用于将波长复用光信号（λdd1〜λdn）的频带分成M个频带;一个解复用装置，用于分离由频带分割装置分割的每个频带 分成多个单波长信道，以及多路复用装置，用于耦合由多路分解装置分离的单个波长信道。 因此，本发明可以显着增加可用波长信道的数量，同时最小化波长信道的光损耗。
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公开(公告)号：KR1020030015571A
公开(公告)日：2003-02-25
申请号：KR1020010049358
申请日：2001-08-16
Applicant: 한국전자통신연구원
IPC: G02B6/00
CPC classification number: H01S3/06758 , H01S3/0677 , H01S3/094015 , H01S3/094023
Abstract: PURPOSE: A two-stage long wavelength band erbium-doped fiber amplifier device is provided, which improves amplification performance by obtaining strong amplified spontaneous emission(ASE) using a reflective optical fiber amplifier as one-step amplifier. CONSTITUTION: According to the two-stage long wavelength band erbium-doped fiber amplifier device, the first amplification unit amplifies forward amplified spontaneous emission(ASE) again by a gain medium by reflecting the forward amplified spontaneous emission as to the forward amplified spontaneous emission and backward amplified spontaneous emission generated by a pump light source projected through a wavelength division multiplexing(WDM). And the second amplification unit receives the forward amplified spontaneous emission and the backward amplified spontaneous emission amplified in the first amplification unit through an optical circulator(100) and then amplifies a long wavelength band signal light using them as a pumping light source.
Abstract translation: 目的：提供两级长波长带掺铒光纤放大器，通过使用反射光纤放大器作为一步放大器获得强放大自发辐射（ASE）来提高放大性能。 构成：根据两级长波长带掺铒光纤放大器装置，第一放大单元通过增益介质再次放大正向放大自发辐射（ASE），反映正向放大自发发射与正向放大自发发射， 由通过波分复用（WDM）投影的泵浦光源产生的向后放大的自发辐射。 并且第二放大单元通过光环行器（100）接收在第一放大单元中放大的正向放大自发发射和反向放大自发辐射，然后使用它们作为泵浦光源放大长波长带信号光。
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公开(公告)号：KR100363849B1
公开(公告)日：2002-12-06
申请号：KR1019990030313
申请日：1999-07-26
Applicant: 한국전자통신연구원
IPC: G02B6/42
Abstract: 본발명은광통신시스템에서핵심적인기능을수행하는색분산보상기에관한것으로, 특히열-전기적으로폴링된광섬유나실리카도파로를사용하여위상공액파를발생시키고이것을다시전송하는중간파장반전법을사용하는폴드광섬유를이용한색분산보상기에관한것이다. 본발명은광신호를전송하기위한단일모드광섬유; 펌프광을출력하기위한펌프광원; 상기단일모드광섬유를통해전송된광신호와펌프광원으로부터공급되는광을결합하기위한광섬유결합기; 상기광섬유결합기를통해공급되는광을입력으로하여비선형상호작용을거쳐위상공액파를발생시키는폴드광섬유; 상기폴드광섬유에서발생된위상공액파에대한다른광을차단하는필터; 및상기필터를통해전송되는광을전송하기위한단일모드광섬유를포함하여구성된폴드광섬유를이용한색분산보상기를제공한다.
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Patent Agency Ranking
公开(公告)号：KR100353844B1
公开(公告)日：2002-09-28
申请号：KR1020000084565
申请日：2000-12-28
Applicant: 한국전자통신연구원
IPC: H04B10/07
Abstract: 1. 청구범위에 기재된 발명이 속한 기술분야
본 발명은 시간-파장 변환에 의한 초고속 광신호의 아이 패턴(eye pattern) 측정 장치에 관한 것임.
2. 발명이 해결하려고 하는 기술적 과제
본 발명은, 선형 처핑(chirping)된 초연속 광원과 비선형 간섭계를 이용하여 입력 광펄스의 시간 파형을 파장 영역으로 변환하여 아이 패턴을 측정하는 아이 패턴 측정 장치를 제공하고자 함.
3. 발명의 해결방법의 요지
본 발명은, 시간-파장 변환에 의한 광신호의 아이 패턴 측정 장치에 있어서, 선형 처핑된 초연속 광원을 생성하기 위한 초연속 광원 생성 수단; 상기 초연속 광원 생성 수단에 의해 생성된 초연속 광원을, 입력받은 광펄스에 의해 비선형 간섭을 발생시키기 위한 비선형 간섭 수단; 및 상기 비선형 간섭 수단에 의해 발생한 초연속 광원에 대한 비선형 간섭의 결과를 이용해 광파장을 분석하여 아이 패턴을 측정하기 위한 광파장 분석 수단을 포함함.
4. 발명의 중요한 용도
본 발명은 광신호의 아이 패턴 측정 등에 이용됨.-
公开(公告)号：KR1020020055533A
公开(公告)日：2002-07-09
申请号：KR1020000084565
申请日：2000-12-28
Applicant: 한국전자통신연구원
IPC: H04B10/07
CPC classification number: H04B10/07957 , G01J3/45
Abstract: PURPOSE: An apparatus for measuring an eye pattern of a very high speed optical signal by a time-wavelength conversion is provided to convert a time waveform with an input optical pulse into a wavelength domain using a linear chirping super-succession optical source and a non-linear interferometer and measure the eye pattern. CONSTITUTION: A super-succession optical source unit(310) generates a linear chirping super-succession optical source. A non-linear interference unit(320) generates a non-linear interference about the super-succession optical source generated by the super-succession optical source unit(310) according to an inputted optical pulse(340). An optical wavelength analyzing unit(330) analyzes an optical wavelength using the result of the non-linear interference about the super-succession optical source and measures an eye pattern.
Abstract translation: 目的：提供一种用于通过时间波长转换来测量非常高速光信号的眼图的装置，用于使用线性啁啾超连续光源将非输入光脉冲的时间波形转换成波长域， 线性干涉仪并测量眼图。 构成：超连续光源单元（310）产生线性啁啾超连续光源。 非线性干扰单元（320）根据输入的光脉冲（340）产生由超连续光源单元（310）生成的超连续光源的非线性干扰。 光波长分析单元（330）使用关于超连续光源的非线性干扰的结果分析光波长并测量眼图。
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公开(公告)号：KR100328130B1
公开(公告)日：2002-03-12
申请号：KR1019990062380
申请日：1999-12-27
Applicant: 한국전자통신연구원
IPC: H01S3/067
CPC classification number: H01S3/302
Abstract: 본발명은비선형광학매질로서펌프광원에대한라만산란을유발시키는광섬유를이용하여펌프광에대해 4차스톡주파수천이된파장에서발진하는광섬유캐스캐이드라만레이저의구도에관한것으로서, 2 개의파장분할다중광섬유결합기를사용하여, 연차적으로스톡주파수천이된라만공진기를형성하며, 광섬유회절격자를이용하여레이저출력파장을선택하는것이다. 이러한구성에의해, 고효율및 좁은선폭의출력파장을선택할수 있으며적은수의광부품을사용하므로경제성이뛰어나고파장가변이용이한효과가있다.
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公开(公告)号：KR100269251B1
公开(公告)日：2000-10-16
申请号：KR1019970072643
申请日：1997-12-23
Applicant: 한국전자통신연구원
IPC: H04J14/00
Abstract: PURPOSE: An amplitude-time reverse multiplexer is provided to be capable of stably time reverse-multiplexing optical signals transmitted from an amplitude-time multiplexing transfer system using pulses the amplitude of which are sequentially changed. CONSTITUTION: An amplitude-time reverse multiplexer includes three non-linear thin films(32) continuously adhered on a substrate(31) having a refractive index(ns) and having a third order nonlinear coefficient. A linear optical waveguide(33) is adhered on an upper end of the three nonlinear thin film(32). A lattice(34) is formed on the linear optical waveguide(33). The refractive index(n2) of the linear waveguide(33) is greater than the refractive index(n0) of the three nonlinear thin films(32).
Abstract translation: 目的：提供一种振幅 - 时间反向多路复用器，能够使用其幅度顺序变化的脉冲从幅度 - 时间复用传输系统中稳定地对多路复用光信号进行反向复用。 构成：振幅时间反向多路复用器包括连续地粘附在具有折射率（ns）并具有三阶非线性系数的衬底（31）上的三个非线性薄膜（32）。 线性光波导33粘附在三个非线性薄膜32的上端。 在线状光波导（33）上形成格子（34）。 线性波导（33）的折射率（n2）大于三个非线性薄膜（32）的折射率（n0）。
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公开(公告)号：KR1020000038070A
公开(公告)日：2000-07-05
申请号：KR1019980052932
申请日：1998-12-03
Applicant: 한국전자통신연구원
IPC: H01S3/098
CPC classification number: H01S3/067 , H01S3/06712 , H01S3/09415 , H01S3/1112
Abstract: PURPOSE: An optical fiber mode locking laser capable of simplifying the configuration thereof and lowering a threshold intensity of a pump light necessary in a mode locking operation by using a liquid crystal circular polarization mirror is provided. CONSTITUTION: In an optical fiber mode locking laser, a gain medium addition optical fiber(41) performs an inverting distribution between upper and lower energy levels by a pump light source and sequentially oscillates light waves required. A liquid crystal circular polarization mirror(81) permeates a wavelength of the pump light source and controls a wavelength of the light waves oscillated by the pump source in the gain medium addition optical fiber(41) to operate as a circular polarization reflecting mirror. A polarization controller(21) controls a polarization state of a light oscillated by gain medium addition optical fiber(41). A dispersion transition optical fiber(42) gives a non-linear efficiency to the light from the polarization controller(21). An optical fiber laser output mirror(62) permeates a part of the light and reflect a part thereof to form a resonator.
Abstract translation: 目的：提供一种能够简化其结构并降低通过使用液晶圆偏振镜在模式锁定操作中所需的泵浦光阈值强度的光纤模式锁定激光器。 构成：在光纤模式锁定激光器中，增益介质添加光纤（41）通过泵浦光源执行上和下能级之间的反向分配，并且顺序地振荡所需的光波。 液晶圆偏光镜（81）渗入泵浦光源的波长，并控制由增益介质添加光纤（41）中的泵浦源振荡的光波的波长，作为圆偏振反射镜进行操作。 偏振控制器（21）控制由增益介质添加光纤（41）振荡的光的偏振状态。 色散转换光纤（42）对来自偏振光控制器（21）的光产生非线性效率。 光纤激光输出反射镜（62）透过光的一部分并反射其一部分以形成谐振器。
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