펄스 레이저 생성기 및 이를 이용한 광섬유 센서 시스템
    1.
    发明申请
    펄스 레이저 생성기 및 이를 이용한 광섬유 센서 시스템 审中-公开
    脉冲激光发生器和光纤传感器系统

    公开(公告)号:WO2013180516A1

    公开(公告)日:2013-12-05

    申请号:PCT/KR2013/004815

    申请日:2013-05-31

    Inventor: 이호재 주기남

    Abstract: 본 발명은 펄스 레이저 생성기를 이용한 광섬유 센서 시스템에 관한 것으로서, 펄스 레이저 생성기에서 생성되는 펄스 레이저 광을 제1입력단으로부터 수신받아 제1출력단과 제2출력단으로 분기시켜 출력하고, 제1출력단과 제2출력단으로부터 역으로 각각 입력되는 광을 제3출력단을 통해 출력하는 메인 광커플러와, 제1출력단과 접속된 레퍼런스 광섬유와, 제2출력단과 접속되며 복수의 센싱 포인트에 대응되게 광섬유가 직렬 또는 병렬상으로 접속된 멀티 포인트 센싱 광섬유부와, 제3출력단과 접속된 광검출부와, 광검출부에서 출력되는 신호로부터 센싱포인트들에 대한 물리량의 변화를 검출하는 진단처리부를 구비한다. 이러한 센서 시스템에 의하면, 다수의 포인트에 대한 물리량의 측정이 용이하면서도 광검출부에 입력되는 광을 시간상으로 분석할 수 있어 분석을 위한 구조가 단순해 지는 장점을 제공한다.

    Abstract translation: 本发明涉及一种使用脉冲激光发生器的光纤传感器系统,包括:主光耦合器,其从第一输入端接收从脉冲激光发生器产生的脉冲激光束,将接收的脉冲激光束分支到第一 输出端子和第二输出端子,并通过第三输出端子分别输出从第一输出端子和第二输出端子反向输入的光束; 连接到第一端子的参考光纤; 连接到第二输出端子并且其中光纤串联或并联连接以便与多个感测点对应的多点感测光纤单元; 连接到第三输出端子的光检测单元; 以及诊断处理单元,用于从要从光检测单元输出的信号中检测用于感测点的物理量的变化。 提供了通过容易地测量多个点的物理量并通过传感器系统分析相对于时间输入到光检测单元中的光而简化的分析结构。

    BROADBAND OPTICAL ACCUMULATOR AND TUNABLE LASER USING A SUPERCONTINUUM CAVITY
    2.
    发明申请
    BROADBAND OPTICAL ACCUMULATOR AND TUNABLE LASER USING A SUPERCONTINUUM CAVITY 审中-公开
    宽带光学累加器和使用超级腔的激光

    公开(公告)号:WO2012027842A1

    公开(公告)日:2012-03-08

    申请号:PCT/CA2011/050525

    申请日:2011-08-29

    Abstract: A broadband optical accumulator and tunable narrowband optical source use a microstructured optical fiber into which optical energy is coupled at a first wavelength. The input optical energy is spectrally broadened as it propagates through the fiber, and the output signal is directed to a wavelength separator such as a Bragg grating. A narrowband portion of the output signal is redirected by the grating, while the remainder is reinjected into the fiber. Adjustment of the output wavelength band may be accomplished by changing the incidence angle of the output signal by pivoting the grating. The grating may be located in a housing and surrounded by index matching fluid, and the narrowband portion of the output signal isolated by the grating may be redirected to an output location by a reflector that moves with pivoting of the grating.

    Abstract translation: 宽带光学累加器和可调谐窄带光源使用其中光能以第一波长耦合的微结构光纤。 输入光能在其通过光纤传播时被光谱扩展,并且输出信号被引导到诸如布拉格光栅之类的波长分离器。 输出信号的窄带部分由光栅重定向,而剩余部分被重新注入到光纤中。 输出波长带的调整可以通过使光栅转动来改变输出信号的入射角来实现。 光栅可以位于壳体中并由折射率匹配流体包围,并且由光栅隔离的输出信号的窄带部分可以通过随着光栅的转动而移动的反射器被重定向到输出位置。

    SWEPT LIGHT SOURCE APPARATUS AND IMAGING SYSTEM INCLUDING THE SAME
    3.
    发明申请
    SWEPT LIGHT SOURCE APPARATUS AND IMAGING SYSTEM INCLUDING THE SAME 审中-公开
    SWEPT光源装置和成像系统,包括它们

    公开(公告)号:WO2011099409A2

    公开(公告)日:2011-08-18

    申请号:PCT/JP2011/052201

    申请日:2011-01-27

    Abstract: The present invention provides a light source apparatus capable of producing stable oscillation and performing high-speed wavelength sweeping over a desired wavelength range. A swept light source apparatus in which oscillation wavelength is continuously changeable is provided. The apparatus includes, inside a resonator, an optical amplification medium that amplifies light, a first device configured to disperse light emitted from the optical amplification medium and thus produce beams having different wavelengths, a second device functioning as a non-focusing optical element and configured to collimate the beams having different wavelengths resulting from the dispersion by the first device, and a selecting device configured to select a beam having a specific wavelength from among the beams collimated by the second device. The beam having the specific wavelength selected by the selecting device is fed back to the optical amplification medium.

    Abstract translation: 本发明提供能够产生稳定振荡并且在期望的波长范围内执行高速波长扫描的光源装置。 提供振荡波长连续变化的扫掠光源装置。 该装置在谐振器内包括放大光的光放大介质,配置成分散从光放大介质发射的光并因此产生具有不同波长的光束的第一器件,用作非聚焦光学元件的第二器件, 准直由第一装置的色散产生的具有不同波长的光束;以及选择装置,被配置为从由第二装置准直的光束中选择具有特定波长的光束。 具有由选择装置选择的特定波长的光束被反馈到光放大介质。

    外部共振器レーザ
    4.
    发明申请
    外部共振器レーザ 审中-公开
    外部共振器激光

    公开(公告)号:WO2011081212A1

    公开(公告)日:2011-07-07

    申请号:PCT/JP2010/073841

    申请日:2010-12-30

    Abstract:  同調域の減少と出力の低下を抑えたASE-Freeの外部共振器レーザを提供する。 入射される光を一部反射し、一部を透過するハーフミラーが固定された固定支持体と、固定支持体に軸を介して回転可能に支持され、かつ、光を放出するレーザチップ、レーザチップから放出された光をコリメートするコリメートレンズ、及びレーザチップから放出された光を回折させる回折格子、が固定されてなる回転支持体と、を有する外部共振器レーザとする。

    Abstract translation: 公开了一种无ASE的外部谐振器激光器,其中抑制了调谐范围的减小和输出的减小。 外部谐振器激光器包括:固定支撑体,其具有部分地反射入射光并部分地透射固定在其中的入射光的半反射镜; 以及旋转支撑体,其通过轴由固定支撑体可旋转地支撑,并且具有发射光的激光芯片,准直激光芯片发射的光的准直透镜和衍射出的光的衍射光栅 从激光芯片固定在其中。

    OPTICAL ALIGNMENT AND WAVELENGTH SELECTION IN EXTERNAL CAVITY LASERS
    5.
    发明申请
    OPTICAL ALIGNMENT AND WAVELENGTH SELECTION IN EXTERNAL CAVITY LASERS 审中-公开
    外部激光激光的光学对准和波长选择

    公开(公告)号:WO2010068726A1

    公开(公告)日:2010-06-17

    申请号:PCT/US2009/067447

    申请日:2009-12-10

    Abstract: A method of operating a laser projection system is provided. The projection system (100) comprises an external cavity laser (10), an optical intensity monitor (20), laser projection optics (30), and a controller (40). The external cavity laser comprises a laser diode, an intra-cavity wavelength conversion device (50), and a wavelength selective element (60). According to the method, the position of the wavelength selective element is adjusted relative to an optical axis Z of the external cavity laser to optimize output intensity. Specifically, the position of the wavelength selective element is adjusted by (i) tilting the wavelength selective element about its wavelength selective axis Y to reflect a wavelength of interest along an optimum path in an XZ plane of the external laser cavity and (ii) tipping the wavelength selective element about its wavelength insensitive axis X to reflect the wavelength of interest along an optimum path in a YZ plane of the external laser cavity. Additional embodiments are disclosed and claimed.

    Abstract translation: 提供了一种操作激光投射系统的方法。 投影系统(100)包括外腔激光器(10),光强度监视器(20),激光投影光学器件(30)和控制器(40)。 外腔激光器包括激光二极管,腔内波长转换器件(50)和波长选择元件(60)。 根据该方法,相对于外腔激光器的光轴Z调节波长选择元件的位置,以优化输出强度。 具体地说,波长选择元件的位置通过(i)使波长选择元件围绕其波长选择轴Y倾斜来反射沿着外部激光腔的XZ平面中的最佳路径的感兴趣的波长并且(ii)倾翻 围绕其波长不敏感轴线X的波长选择元件,以反映沿着外部激光腔的YZ平面中的最佳路径感兴趣的波长。 公开和要求保护附加实施例。

    EXTERNAL CAVITY TUNABLE COMPACT MID-IR LASER
    6.
    发明申请
    EXTERNAL CAVITY TUNABLE COMPACT MID-IR LASER 审中-公开
    外部空心轻巧的中红外激光

    公开(公告)号:WO2008018858A3

    公开(公告)日:2008-06-26

    申请号:PCT/US2006029975

    申请日:2006-08-01

    Abstract: A compact mid-IR laser device utilizes an external cavity to tune the laser. The external cavity may employ a Littrow or Littman cavity arrangement. In the Littrow cavity arrangement, a filter, such as a grating, is rotated to provide wavelength gain medium selectivity In the Littman cavity arrangement, a reflector is rotated to provide tuning. A quantum cascade laser gain medium provides mid-IR frequencies suitable for use in molecular detection by signature absorption spectra. The compact nature of the device is obtained owing to an efficient heat transfer structure, the use of a small diameter aspheric lens for both the output lens and the external cavity lens and a monolithic assembly structure to hold the optical elements in a fixed position relative to one another. Efficient heat transfer is achieved using a thermo-electric cooler combined with a heat spreader onto which the quantum cascade laser gain medium is thermally coupled.

    Abstract translation: 紧凑的中红外激光器件利用外部腔来调谐激光器。 外腔可以采用Littrow或Littman腔布置。 在Littrow腔布置中,旋转滤光器(例如光栅)以提供波长增益介质选择性在Littman腔布置中,旋转反射器以提供调谐。 量子级联激光增益介质提供适合用于通过特征吸收光谱进行分子检测的中红外频率。 通过有效的传热结构,可以获得装置的紧凑性,使用用于输出透镜和外腔透镜的小直径非球面透镜和用于将光学元件保持在固定位置的单片组件结构 另一个。 使用与散热器结合的热电冷却器实现有效的热传递,量子级联激光增益介质在其上进行热耦合。

    DIRECTLY PIVOTABLE GRATING FOR AGILE LASER TUNERS
    10.
    发明申请
    DIRECTLY PIVOTABLE GRATING FOR AGILE LASER TUNERS 审中-公开
    用于AGILE激光调谐器的直接光栅

    公开(公告)号:WO2004032290A2

    公开(公告)日:2004-04-15

    申请号:PCT/US0330034

    申请日:2003-09-26

    Inventor: TISUE J GILBERT

    Abstract: Apparatus and method of providing an easily aligned directly pivotable grating suitable for high power agile wavelength laser tuners. A mounting and adjustment plane (26) is located on a rotational axis (28) and on a grating (27). An external adjustment mechanism and thermal bonding (40) reduce rotational moment and enable high power applications. The implementation is capable of utilizing grating blank materials that resist tapping or drilling. Low cost is achieved by construction in a matrix of ruling blanks (52) thereby complimenting the characteristics of ruling engines.

    Abstract translation: 提供适合于高功率灵敏波长激光调谐器的容易对准的可直接转动的光栅的装置和方法。 安装和调整平面(26)位于旋转轴线(28)和光栅(27)上。 外部调节机构和热粘合(40)可减少旋转力矩,实现高功率应用。 该实施能够利用抵抗攻丝或钻孔的光栅坯料。 低成本是通过建立一个统治空白矩阵(52)来实现的,从而符合统治引擎的特点。

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