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    • 4. 发明公开
    • 렌즈를 결합한 광섬유 브래그 격자 기반 자외선 광센서
    • 紫外光传感器基于与镜头组合的光纤光栅
    • KR1020150097166A
    • 2015-08-26
    • KR1020140018376
    • 2014-02-18
    • 조선대학교산학협력단(주)옵토네스트
    • 안태정송일신김찬영김우영이수남
    • G01J1/02
    • G01J1/0219G01J1/0492G01J1/34G01J2001/0496
    • 본 발명은 아조벤젠 폴리머가 코팅된 광섬유 브래그 격자(FBG:Fiber Bragg Grating) 기반의 광 반응부, 및 상기 광 반응부의 상부에 구비되어 자외선 광에 노출시 상기 광 반응부에 자외선을 집광시키는 렌즈를 포함하는 렌즈를 결합한 광섬유 브래그 격자 기반 자외선 광센서를 제공한다.
      본 발명의 렌즈를 결합한 광섬유 브래그 격자 기반 자외선 광센서에 따르면, 아조벤젠 폴리머가 코팅된 광섬유 브래그 격자(FBG:Fiber Bragg Grating) 기반의 광 반응부에 자외선 광을 집광시키는 렌즈가 구비되어 자외선 광을 광 반응부에 고르게 집속시킴으로써 아조벤젠 폴리머의 부피 변화가 빠르게 발생되고 이로 인하여 광섬유 브래그 격자의 간격변형이 빠르게 발생되며 아울러 광섬유의 중심파장에 변화가 민감하게 발생하여 자외선 광에 대한 반응도(민감도)를 크게 높일 수 있게 되는 효과가 있다.
    • 本发明提供了一种与透镜组合的基于光纤光栅的UV光传感器,其包括:基于光纤布拉格光栅(FBG)的光反应单元,其涂覆有偶氮苯聚合物; 以及通过安装在光反应单元的上部而在光反应单元中收集UV的透镜。 通过在涂布有偶氮苯聚合物的基于FBG的光反应单元中收集紫外光并且在光反应单元中均匀地收集UV光的透镜,改变了偶氮苯的体积,从而产生FBG的快速间隔变化 和纤维的中心波动,此外,反应性和灵敏度可以显着提高。
    • 7. 发明公开
    • MMF 간섭계를 이용한 온도센서 및 그의 온도 측정방법
    • 使用MMF干涉仪的温度传感器及其温度感测
    • KR1020110129665A
    • 2011-12-02
    • KR1020100049169
    • 2010-05-26
    • 조선대학교산학협력단(주)옵토네스트
    • 안태정정회석최동석이수남서병서
    • G01K11/32G01B9/02
    • G01K11/32G01B9/02094G01K15/005
    • PURPOSE: A temperature sensor using an MMF interferometer and a method of measuring the temperature of the sensor are provided to lower the manufacturing cost of a temperature sensor and enable accurate measuring of temperature since a temperature sensor with the same function can be manufactured using the MMF interferometer of TMF without FBG. CONSTITUTION: A temperature sensor using an MMF interferometer comprises a light source, a first MMF interferometer(150-1), a second MMF interferometer(150-2), a photo coupler(140) and an operation unit(180). The first interferometer is located on a target. The second interferometer is located on other places than the target. The photo coupler distributes light from the light source and transfers it to the first and second interferometers. The photo coupler couples lights reflected from the first and second interferometers. The operation unit calculates the temperature of the target based on the light output from the photo coupler.
    • 目的:提供使用MMF干涉仪的温度传感器和测量传感器温度的方法,以降低温度传感器的制造成本,并能够精确测量温度,因为可以使用MMF制造具有相同功能的温度传感器 TMF干涉仪无FBG。 构成:使用MMF干涉仪的温度传感器包括光源,第一MMF干涉仪(150-1),第二MMF干涉仪(150-2),光耦合器(140)和操作单元(180)。 第一个干涉仪位于目标上。 第二个干涉仪位于与目标不同的地方。 光耦合器分配来自光源的光并将其传送到第一和第二干涉仪。 光耦合器耦合从第一和第二干涉仪反射的光。 操作单元基于光耦合器的光输出来计算目标的温度。
    • 8. 发明公开
    • 가변된 광주파수를 가지는 모드 사이 간섭현상을 이용한다중모드 광섬유의 모드간 지연시간 측정 시스템
    • 通过使用间接干涉仪和光纤频道进行多模光纤的差分模式延迟测量系统
    • KR1020070080048A
    • 2007-08-09
    • KR1020060011104
    • 2006-02-06
    • 광주과학기술원
    • 김덕영안태정
    • G02B6/00G02B6/02
    • G01M11/3172
    • A differential mode delay measurement system for an MMF(Multimode Optical Fiber) using an intermodal interference with varied optical frequency is provided to easily increase resolving power due to the characteristic of an OFDR(Optical Frequency Domain Reflectometer) using a wavelength variable laser, and to overcome the limit of measurement length by measuring the light although the intensity of the light is low. A differential mode delay measurement system for an MMF(30) using an intermodal interference with varied optical frequency is composed of a wavelength variable laser(10) oscillating the laser light having the wavelength repeatedly varied in a linear form within a specific frequency band; a mode scrambler(20) installed at the front end of the MMF, to generate all available modes by transmitting the laser light oscillated from the wavelength variable laser to the MMF; an optical detector(40) detecting the light after converting the light passing through the MMF into the parallel light; and a delayed time calculating unit computing the delayed time between the modes by using an interference signal generated from the optical detector, and calculating a DMD(Differential Mode Delay) value from the delayed time between the modes.
    • 提供了使用具有变化的光频率的联合干涉的MMF(多模光纤)的差模延迟测量系统,以便由于使用波长可变激光器的OFDR(光频域反射计)的特性而容易地提高分辨率,并且 通过测量光来克服测量长度的极限,尽管光的强度很低。 用于使用具有变化的光频率的联合干涉的MMF(30)的差模延迟测量系统由波长可变激光器(10)组成,波长可变激光器(10)振荡具有在特定频带内以线性形式重复变化的波长的激光; 安装在MMF的前端的模式扰频器(20),通过将从波长可变激光器振荡的激光发射到MMF来产生所有可用模式; 光检测器(40),其将通过所述MMF的光转换成平行光; 以及延迟时间计算单元,通过使用从光学检测器产生的干扰信号来计算模式之间的延迟时间,以及从模式之间的延迟时间计算DMD(差分模式延迟)值。
    • 10. 发明公开
    • 간섭계를 이용한 다중모드 광섬유의 고차 모드에 대한색분산 측정 시스템
    • 通过使用干涉仪在多模光纤中进行高阶模式的色散测量系统
    • KR1020070079618A
    • 2007-08-08
    • KR1020060010353
    • 2006-02-03
    • 광주과학기술원
    • 김덕영안태정
    • G02B6/00G02B6/02
    • G01N21/412C03B37/014C03B37/01446C03B2201/31C03B2207/70G01J3/50G02B6/02271G02B6/02276
    • A chromatic dispersion measurement system using an interferometer for a high mode of a multi-mode fiber is provided to effectively execute mode analysis of the multi-mode fiber and chromatic dispersion measurement by using a wavelength varied laser beam and a simplified interferometer. A chromatic dispersion measurement system using an interferometer for a high mode of a multi-mode fiber is composed of an optical fiber splitter(30) dividing a laser beam with a wavelength repeatedly varied in a linear form within a specific frequency region and distributing the divided laser beam to optical fibers formed at each arm; a reference fiber(40) comprising single-mode optical fibers for providing a reference value; a high mode generating fiber(50) formed on the other arm to connect a multi-mode fiber with the single-mode optical fiber of a sample and generate a high mode; an optical coupler(90) coupling the beams passing through the high mode generating fiber and the reference fiber; an optical detector(100) detecting the interfered light generated with passing through the optical coupler as an electrical signal; and a microprocessor(110) including a program having a process for computing the characteristic of each mode by analyzing frequency components for an interference signal detected through the optical detector.
    • 提供了使用用于多模光纤的高模式的干涉仪的色散测量系统,以通过使用波长变化的激光束和简化的干涉仪来有效地执行多模光纤和色散测量的模式分析。 使用用于多模光纤的高模式的干涉仪的色散测量系统由在特定频率区域内以线性形式重复变化的波长的激光束分割的光纤分路器(30)组成,并且分配 激光束到每个臂上形成的光纤; 包括用于提供参考值的单模光纤的参考光纤(40); 形成在另一个臂上的高模式发生光纤(50),以将多模光纤与样品的单模光纤连接,并产生高模式; 耦合通过高模式发生光纤的光束和参考光纤的光耦合器(90); 光检测器(100),检测通过光耦合器产生的被干扰的光作为电信号; 以及包括具有通过分析通过光学检测器检测的干扰信号的频率分量来计算每种模式的特性的处理的程序的微处理器(110)。