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公开(公告)号：KR1020080085996A
公开(公告)日：2008-09-25
申请号：KR1020070027518
申请日：2007-03-21
Applicant: 한국과학기술연구원
IPC: H04B10/07 , H04B10/2581 , H04B10/00 , H04L12/24
Abstract: A system for detecting a fault location in an optical network using tunable optical add-drop modules is provided to detect the location of a fault generated on an optical line, without using any additional light source, by dropping the signals of the optical line among the signals of BLSs(Broadband Light Sources), making them into optical pulse signals, and using them as monitoring light. A system for detecting a fault location in an optical network comprises BLSs(3,7), optical lines(10,12,13), and an optical line fault location detector(9). The BLSs output signals. The optical lines deliver the signals outputted from the BLSs. In case a fault occurs at an optical line, the optical line fault location detector drops only the signals of the optical line among the signals of the BLSs, converts them into optical pulse signals, combines the optical pulse signals with the other signals of the BLSs, and supplies them to the optical lines. Then the optical line fault location detector drops only the backscattered light of the fault optical line among the backscattered light generated as the supplied signals pass through the optical lines, analyzes variation of size for the time of the dropped backscattered light, and detects the location of the fault.
Abstract translation: 提供一种用于使用可调光学分插模块来检测光网络中的故障位置的系统，用于通过将光线路的信号丢弃在光路中而不使用任何附加光源来检测在光线路上产生的故障的位置 BLS（宽带光源）的信号，使其成为光脉冲信号，并将其用作监控光。 用于检测光网络中的故障位置的系统包括BLS（3,7），光线路（10,12,13）和光线路故障位置检测器（9）。 BLS输出信号。 光线路传送从BLS输出的信号。 在光线路发生故障的情况下，光线路故障定位检测器仅降低BLS信号中的光线路信号，将其转换为光脉冲信号，将光脉冲信号与BLS的其他信号相结合 ，并将其提供给光线路。 然后，光线路故障定位检测器仅在所提供的信号通过光线路时产生的背向散射光中仅丢弃故障光线路的后向散射光，分析落后的反向散射光的时间的大小变化，并且检测 错误。
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公开(公告)号：KR1020080085994A
公开(公告)日：2008-09-25
申请号：KR1020070027515
申请日：2007-03-21
Applicant: 한국과학기술연구원
IPC: H04B10/2507 , H04B10/2581 , H04J14/02
CPC classification number: H04J14/0227 , H04B10/503
Abstract: A bidirectional WDM(Wavelength Division Multiplexing)-PON(Passive Optical Network) is provided to remove inter-channel crosstalk effectively and to expand the number of channels twice as compared to an existing WDM-PON by using 4 BLSs(Broadband Light Sources) having their respective wavelength bands. An OLT(Optical Line Terminal) in a WDM-PON comprises 4 BLSs(170,180,220,230), a BIM(Band Interleave Multiplexer/demultiplexer)(160), and transceivers(110-130). The BLSs have their respective wavelength bands. The BIM classifies and outputs the injection light created by two of the BLSs and the Tx signals created by the injection light of the other BLSs according to odd channels and even channels. In this case, the injection light or Tx signal of each band has a different channel from a neighbor band. Each transceiver creates Tx signals with the injection light outputted from the BIM, filters the Tx signals outputted from the BIM, and receives Tx signals of preset channel-by-channel bands only.
Abstract translation: 提供双向WDM（波分复用）-PON（无源光网络）以有效地消除信道间串扰并且通过使用具有4个BLS（宽带光源）的现有WDM-PON来扩展信道数量两倍 它们各自的波段。 WDM-PON中的OLT（光线路终端）包括4个BLS（170,180,220,230），BIM（频带交织多路复用器/解复用器）（160）和收发机（110-130）。 BLS具有各自的波长带。 BIM根据奇数通道和偶数通道对由两个BLS产生的注入光和由其他BLS的注入光产生的Tx信号进行分类和输出。 在这种情况下，每个频带的注入光或Tx信号具有与相邻频带不同的信道。 每个收发器利用从BIM输出的注入光产生Tx信号，对从BIM输出的Tx信号进行滤波，并且仅接收预设的逐通道频带的Tx信号。
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Patent Agency Ranking
公开(公告)号：KR101889351B1
公开(公告)日：2018-09-20
申请号：KR1020160092138
申请日：2016-07-20
Applicant: 한국과학기술연구원
Abstract: 공간선택적브릴루앙분포형광섬유센서(spatially-selective Brillouin distributed optical fiber sensor)는, 시험광섬유; 제1 주파수를가진주 변조신호및 제2 주파수를가진부 변조신호를이용하여이중변조된레이저광을생성하도록구성된광원부; 광원부의레이저광을이용하여펌프광신호및 프로브광신호를생성하며, 펌프광신호및 프로브광신호를서로상이한방향으로부터시험광섬유에인가하도록구성된광변조부; 및시험광섬유에위치하는상관점에서펌프광신호및 프로브광신호에의해생성되는브릴루앙산란광을검출하는광검출부를포함한다. 광변조부는, 제3 주파수를갖는펄스형태의게이팅신호를이용하여펌프광신호및 프로브광신호를시간게이팅하도록구성된다. 공간선택적브릴루앙분포형광섬유센서는, 광학적시간게이팅(time-gating)과주파수이중변조를적용함으로써종래의센서장치에비하여유효측정점개수를획기적으로늘린이점을갖는다.
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27.发明公开
公开(公告)号：KR20180010049A
公开(公告)日：2018-01-30
申请号：KR20160092138
申请日：2016-07-20
Applicant: 한국과학기술연구원
CPC classification number: G01D5/35364 , G01N21/1717 , G01N21/636 , G01N2021/1725 , G01N2021/638
Abstract: 공간선택적브릴루앙분포형광섬유센서(spatially-selective Brillouin distributed optical fiber sensor)는, 시험광섬유; 제1 주파수를가진주 변조신호및 제2 주파수를가진부 변조신호를이용하여이중변조된레이저광을생성하도록구성된광원부; 광원부의레이저광을이용하여펌프광신호및 프로브광신호를생성하며, 펌프광신호및 프로브광신호를서로상이한방향으로부터시험광섬유에인가하도록구성된광변조부; 및시험광섬유에위치하는상관점에서펌프광신호및 프로브광신호에의해생성되는브릴루앙산란광을검출하는광검출부를포함한다. 광변조부는, 제3 주파수를갖는펄스형태의게이팅신호를이용하여펌프광신호및 프로브광신호를시간게이팅하도록구성된다. 공간선택적브릴루앙분포형광섬유센서는, 광학적시간게이팅(time-gating)과주파수이중변조를적용함으로써종래의센서장치에비하여유효측정점개수를획기적으로늘린이점을갖는다.
Abstract translation: 空间选择性布里渊分布式光纤传感器是测试光纤; 被配置为使用具有第一频率的第八伪调制信号和具有第二频率的副调制信号来产生调制激光束的光源; 一种光调制器，被配置为使用光源单元的激光产生泵浦光信号和探测光信号，并且将泵浦光信号和探测光信号从不同的方向施加到测试光纤; 以及光检测器，用于检测由位于测试光纤中的相关点处的泵浦光信号和探测光信号产生的布里渊散射光。 光调制器被配置为使用具有第三频率的脉冲形状的门控信号来时间测量泵浦光信号和探测光信号。 通过应用光时间门控和频率双重调制，空间选择性布里渊分布荧光传感器与传统传感器设备相比，具有显着提高有效测量点数量的优势。
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公开(公告)号：KR1020160048541A
公开(公告)日：2016-05-04
申请号：KR1020140145401
申请日：2014-10-24
Applicant: 한국과학기술연구원
CPC classification number: G02B26/04 , H01S3/094003 , H01S3/10023 , H01S5/50 , H04B10/291
Abstract: 광신호변조장치는, 광신호를제공하도록구성된제1 광원; 펌프광을제공하도록구성된제2 광원; 상기제1 광원및 상기제2 광원과광학적으로연결되어, 상기펌프광을이용하여상기광신호의크기를증폭하도록구성된증폭광섬유; 상기광신호를변조하도록구성된변조기로서, 상기변조기의일단은상기증폭광섬유에광학적으로연결된, 상기변조기; 및상기변조기의타단에광학적으로연결되어, 상기변조기에의해변조된상기광신호를상기변조기를향해반사하도록구성된거울을포함한다. 상기광신호변조장치에의하면, 광신호의펄스쉐이핑(pulse shaping)을수행함에있어서광신호가변조기를두 번통과하므로변조깊이를두 배가량증가시킬수 있으며, 광신호가증폭광섬유를두 번통과하게되므로증폭광섬유의효율성이증대된다.
Abstract translation: 光信号调制装置包括：第一光源，用于提供光信号; 用于提供泵浦光的第二光源; 光学连接到第一光源和第二光源的放大光纤，通过使用泵浦光来放大光信号的尺寸; 在其一端与放大光纤光学连接的调制器来调制光信号; 以及镜子，光学连接到调制器的另一端以将由调制器调制的光信号反射到调制器。 根据光信号调制装置，当进行光信号的脉冲整形时，光信号通过调制器两次，使得调制深度增加约两倍，光信号通过放大光纤 两次，因此放大光纤的效率增加。
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公开(公告)号：KR1020140105624A
公开(公告)日：2014-09-02
申请号：KR1020130010798
申请日：2013-01-31
Applicant: 한국과학기술연구원
CPC classification number: G02B6/02042 , G02B6/036 , G02B6/08 , G02B6/28
Abstract: An optical element using a multicore optical fiber may include: an input optical fiber having a plurality of input cores; an output optical fiber having a plurality of output cores respectively corresponding to the input cores; and a coupling region disposed between the input optical fiber and the output optical fiber, and having a smaller diameter than the input optical fiber and the output optical fiber to connect the optical signal with the cores. The present invention can diverge the beam which is incident to the core of an input stage is diverged into the cores of an output stage by using the coupling region tapered in the multicore optical fiber, and can output the beam in the core of the output stage by coupling the beam which is incident to the core thereof.
Abstract translation: 使用多芯光纤的光学元件可以包括：具有多个输入芯的输入光纤; 输出光纤，具有分别对应于输入核心的多个输出核心; 以及设置在输入光纤和输出光纤之间的耦合区域，并且具有比输入光纤和输出光纤更小的直径以将光信号与芯连接。 本发明可以使入射到输入级的磁芯的光束通过使用在多芯光纤中渐缩的耦合区域而分散到输出级的磁芯中，并且可以将输出级的磁芯中的光束输出 通过耦合入射到其核心的光束。
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30.发明授权금속 나노선이 삽입된 광섬유를 이용한 광 바이오 센서, 이의 제조 방법 및 이를 이용한 바이오 물질 검출 방법 有权使用具有金属纳米线的光纤的光学生物传感器，其制造方法和使用其检测生物材料的方法
公开(公告)号：KR101244326B1
公开(公告)日：2013-03-18
申请号：KR1020120149279
申请日：2012-12-20
Applicant: 한국과학기술연구원
IPC: G01N21/55 , G01N21/27 , G01N33/483
Abstract: 광 바이오 센서는, 코어 영역; 상기 코어 영역을 둘러싸는 클래딩 영역; 상기 클래딩 영역에 삽입된 금속 나노선; 및 상기 클래딩 영역에 형성되며 바이오 물질이 주입되도록 구성된 홀을 포함할 수 있다. 상기 광 바이오 센서를 이용하면, 광섬유 내부의 금속 나노선에 의해 광섬유 자체에서 표면 플라즈몬 공진(Surface Plasmon Resonance; SPR)을 발생시키고, 표면 플라즈몬 공진에 의한 피크 파장의 변화를 이용하여 홀 내에 삽입된 바이오 물질을 검출할 수 있다.
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