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    OPTICAL SENSOR INTERROGATION SYSTEM BASED ON FDML WAVELENGTH SWEPT LASER
    91.
    发明申请
    OPTICAL SENSOR INTERROGATION SYSTEM BASED ON FDML WAVELENGTH SWEPT LASER 有权
    基于FDML波长扫描激光的光传感器内插系统

    公开(公告)号：US20100103426A1

    公开(公告)日：2010-04-29

    申请号：US12566403

    申请日：2009-09-24

    Applicant: Chang-Seok Kim ,  Myung-Yung Jeong ,  Jae-Seok Park ,  Eun-Joo Jung ,  Hyung-Seok Lee

    Inventor： Chang-Seok Kim ,  Myung-Yung Jeong ,  Jae-Seok Park ,  Eun-Joo Jung ,  Hyung-Seok Lee

    IPC: G01N21/47 ,  G01J3/44

    CPC classification number: G01J3/2889 ,  G01D5/35316 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0245 ,  G01J3/10 ,  G01J3/26 ,  G01J3/42 ,  G01J3/4338

    Abstract: Provided is an optical sensor interrogation system. The optical sensor interrogation system includes: a light source unit which matches round-trip time of light and wavelength tunable cycle time of light in a resonator and emits light; a sensing unit which receives an optical signal in which a center wavelength periodically tunes, from the light source unit and tunes the center wavelength of the optical signal according to physical changes applied from the outside; and a signal processing unit which receives the optical signal reflected from the sensing unit, detects data, and images the data. In particular, the light source unit includes a delaying unit which delays the round-trip time of light and a tunable filter which tunes the wavelength of light so as to match the round-trip time of light with the wavelength tunable cycle time of light. Accordingly, a Fourier domain mode locking (FDML) wavelength swept laser, which operates at speed of several tens kHz or above, is used as a light source so that strain of a fluid, which changes in a short time interval of 0.1 msec or below, is precisely measured and thus a real-time analysis may be performed at high speed.

    Abstract translation: 提供了一种光学传感器询问系统。 光传感器询问系统包括：光源单元，其匹配谐振器中的光的往返时间和波长可调周期时间，并发光; 感测单元，其从光源单元接收中心波长周期性地调谐的光信号，并根据从外部施加的物理变化调谐光信号的中心波长; 以及信号处理单元，其接收从感测单元反射的光信号，检测数据并对数据进行成像。 特别地，光源单元包括延迟光的往返时间的延迟单元和调节光的波长的可调谐滤波器，以便将光的往返时间与光的波长可调周期时间相匹配。 因此，以几十kHz或更高速度运行的傅立叶域模式锁定（FDML）波长扫描激光器被用作光源，使得在0.1msec或更短的时间间隔内变化的流体应变 ，被精确测量，因此可以高速执行实时分析。

    TERAHERTZ SPECTROMETER
    92.
    发明申请
    TERAHERTZ SPECTROMETER 失效
    TERAHERTZ光谱仪

    公开(公告)号：US20090225312A1

    公开(公告)日：2009-09-10

    申请号：US12395266

    申请日：2009-02-27

    Applicant: Florian Formanek ,  Marc-Aurele Brun

    Inventor： Florian Formanek ,  Marc-Aurele Brun

    IPC: G01J3/00

    CPC classification number: G01J3/02 ,  G01J3/0245 ,  G01J3/42 ,  G01N21/3586 ,  G02B6/29376

    Abstract: A terahertz spectrometer includes an optical fiber and an emitter. The optical fiber is branched from a gain fiber constituting an ultra-short pulse oscillator. The emitter generates a terahertz wave from a pulse beam guided from the gain fiber through the optical fiber.

    Abstract translation: 太赫兹光谱仪包括光纤和发射器。 光纤从构成超短脉冲振荡器的增益光纤分支。 发射极通过光纤从增益光纤引导的脉冲光束产生太赫兹波。

    FBG SENSOR INTERROGATION METHOD USING SEMICONDUCTOR OPTICAL AMPLIFIER IN RING CAVITY CONFIGURATION
    93.
    发明申请
    FBG SENSOR INTERROGATION METHOD USING SEMICONDUCTOR OPTICAL AMPLIFIER IN RING CAVITY CONFIGURATION 有权
    使用半导体光学放大器在环形结构中的FBG传感器互连方法

    公开(公告)号：US20070154130A1

    公开(公告)日：2007-07-05

    申请号：US11325983

    申请日：2006-01-05

    Applicant: Hwa Tam ,  Weng Chung

    Inventor： Hwa Tam ,  Weng Chung

    IPC: G02B6/00

    CPC classification number: G01J3/18 ,  G01B11/18 ,  G01J3/0245 ,  G01J3/1895 ,  G01J9/00 ,  H04J14/08

    Abstract: A sensor device that uses a number of bragg grating (FBG) sensors and novel interrogation system with a ring cavity configuration for simultaneous time-division-multiplexex (TDM) and wavelength-division-multiplexed (WDM) interrogation of FBG sensors. The ring cavity includes an amplifier, and output coupler and an optical circulator. The coupler is connected to a wavelength measuring system and the optical circulator is connected to the FBG sensors. The FBG sensors can be in a number of groups. TDM interrogation is applied to each group of FBG sensors while WDM interrogation is applied to each FBG sensors within each group.

    Abstract translation: 一种使用多个布拉格光栅（FBG）传感器和具有环形腔配置的新型询问系统的传感器设备，用于FBG传感器的同时时分复用（TDM）和波分复用（WDM）询问。 环形腔包括放大器，输出耦合器和光循环器。 耦合器连接到波长测量系统，光环行器连接到FBG传感器。 FBG传感器可以在多个组中。 TDM询问应用于每组FBG传感器，而WDM询问应用于每组中的每个FBG传感器。

    SYSTEMS, METHODS, AND APPARATUS FOR RADIATION DETECTION
    94.
    发明申请
    SYSTEMS, METHODS, AND APPARATUS FOR RADIATION DETECTION 审中-公开
    用于辐射检测的系统，方法和装置

    公开(公告)号：WO2016144779A1

    公开(公告)日：2016-09-15

    申请号：PCT/US2016/020948

    申请日：2016-03-04

    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

    Inventor： PEIN, Brandt C. ,  HWANG, Harold Y. ,  CHANG, Wendi ,  NELSON, Keith ,  BULOVIC, Vladimir ,  BRANDT, Nathaniel C.

    IPC: G01J5/28

    CPC classification number: G01J5/046 ,  G01J1/58 ,  G01J3/0216 ,  G01J3/0245 ,  G01J3/04 ,  G01J3/42 ,  G01J5/0815 ,  G01J5/0837

    Abstract: A radiation detection technique employs field enhancing structures and electroluminescent materials to converts incident Terahertz (THz) radiation into visible light and/or infrared light. In this technique, the field-enhancing structures, such as split ring resonators or micro- slits, enhances the electric field of incoming THz light within a local area, where the electroluminescent material is applied. The enhanced electric field then induces the electroluminescent material to emit visible and/or infrared light via electroluminescent process. A detector such as avalanche photodiode can detect and measure the emitted light. This technique allows cost-effective detection of THz radiation at room temperatures.

    Abstract translation: 放射线检测技术采用场增强结构和电致发光材料将入射的太赫兹（THz）辐射转换成可见光和/或红外光。 在这种技术中，诸如裂环谐振器或微缝隙的场增强结构增强了施加电致发光材料的局部区域内的输入THz光的电场。 增强的电场然后诱导电致发光材料通过电致发光工艺发射可见光和/或红外光。 诸如雪崩光电二极管的检测器可以检测和测量发射的光。 这种技术允许在室温下对THz辐射进行成本有效的检测。

    SYSTEMS AND METHODS FOR NARROWING A WAVELENGTH EMISSION OF LIGHT
    95.
    发明申请
    SYSTEMS AND METHODS FOR NARROWING A WAVELENGTH EMISSION OF LIGHT 审中-公开
    用于消除光的波长发射的系统和方法

    公开(公告)号：WO2014099896A1

    公开(公告)日：2014-06-26

    申请号：PCT/US2013/075636

    申请日：2013-12-17

    Applicant: WELFORD, David

    Inventor： WELFORD, David

    IPC: H01S3/10

    CPC classification number: G01J9/0246 ,  A61B5/0066 ,  A61B5/0073 ,  G01B9/02091 ,  G01J3/0245 ,  G01J3/10 ,  G01J3/12 ,  G01J2003/1213 ,  G01J2009/0226 ,  H01S3/06791

    Abstract: The present invention generally relates to methods and systems for narrowing a wavelength emission of light. In certain aspects, methods of the invention involve transmitting light through a filter and passing a portion of the filtered light through a gain chip assembly at least two times before that portion of light passes again through the filter.

    Abstract translation: 本发明一般涉及用于使光的波长发射变窄的方法和系统。 在某些方面，本发明的方法涉及通过滤光器透射光并将滤光的光的一部分通过增益芯片组件至少两次，之后该部分光再次通过滤光器。

    SYSTEMS AND METHODS FOR FIBER OPTIC PARAMETRIC AMPLIFICATION AND NONLINEAR OPTICAL FIBER FOR USE THEREIN
    96.
    发明申请
    SYSTEMS AND METHODS FOR FIBER OPTIC PARAMETRIC AMPLIFICATION AND NONLINEAR OPTICAL FIBER FOR USE THEREIN 审中-公开
    光纤参数放大系统与方法及其使用的非线性光纤

    公开(公告)号：WO2012142187A3

    公开(公告)日：2012-12-27

    申请号：PCT/US2012033160

    申请日：2012-04-11

    Applicant: UNIV CALIFORNIA ,  KUO PING PIU ,  RADIC STOJAN

    Inventor： KUO PING PIU ,  RADIC STOJAN

    IPC: G02B6/10

    CPC classification number: G02F1/395 ,  G01J3/0245 ,  G01J3/12 ,  G01J3/32 ,  G02B6/02219 ,  G02B6/0281 ,  G02B6/0365 ,  G02F1/3544 ,  G02F2001/392 ,  G02F2201/02 ,  H01S3/06729 ,  H01S3/06791 ,  H01S3/08027 ,  H01S3/0809 ,  H01S3/094096 ,  H01S3/302

    Abstract: A high confinement nonlinear optical fiber is provided along with methods of parametric amplification for use thereof. The nonlinear optical fiber may include a plurality of concentric layers which are configured to provide different guiding regimes to low-frequency and high-frequency components through transverse geometry and refractive index profiling, thus reducing waveguide dispersion. The resulting optical fiber provides a parametric device with phase-matching in any spectral region of interest, such that a fiber optic parametric amplifier (FOPA) implementing the optical fiber can amplify in any spectral window of interest. A narrow-band FOPA configured to minimize phase mismatching is also provided for use with the optical fiber, and may be implemented as a light source or a monochromator.

    Abstract translation: 提供高约束非线性光纤以及用于其的参数放大方法。 非线性光纤可以包括多个同心层，其被配置为通过横向几何形状和折射率分布为低频和高频分量提供不同的引导方式，从而减少波导色散。 所得到的光纤在感兴趣的任何光谱区域中提供具有相位匹配的参数设备，使得实现光纤的光纤参数放大器（FOPA）可以在感兴趣的任何光谱窗口中放大。 配置为最小化相位失配的窄带FOPA也被提供用于光纤，并且可以被实现为光源或单色器。

    SYSTEMS AND METHODS FOR PERMEATION RATE TESTING OF BARRIER FILMS
    97.
    发明申请
    SYSTEMS AND METHODS FOR PERMEATION RATE TESTING OF BARRIER FILMS 审中-公开
    用于屏障膜渗透率测试的系统和方法

    公开(公告)号：WO2012033648A2

    公开(公告)日：2012-03-15

    申请号：PCT/US2011049268

    申请日：2011-08-26

    Applicant: SAINT GOBAIN PERFORMANCE PLAST ,  FAMILIA AZIZ MAHFOUD ,  SHACKLEFORD DAVID S ,  MEKHILEF NAFIH ,  ZIMMERMAN MIKE A

    Inventor： FAMILIA AZIZ MAHFOUD ,  SHACKLEFORD DAVID S ,  MEKHILEF NAFIH ,  ZIMMERMAN MIKE A

    IPC: G01N15/08 ,  G01N21/25 ,  G01N31/00

    CPC classification number: G01J3/021 ,  G01J3/0245 ,  G01J3/42 ,  G01N15/082 ,  G01N21/3554 ,  G01N21/39 ,  G01N2021/399

    Abstract: The present invention is directed to systems and methods which utilize a cavity ring- down spectroscopy (CRDS) technique implemented for the measurements of vapor transmission rate. In one embodiment, the vapor content to be measured is contained within an optical cavity. Light is then injected into the cavity up to a threshold level and the delay time of the injected light is measured. When the wavelength of the injected light is resonant with an absorption feature of the vapor the decay time increases linearly as a function of vapor content. In this manner, vapor content causes a longer delay time and thus the amount of vapor passing through the film (film permeation rate) can be determined in real-time.

    Abstract translation: 本发明涉及利用实施用于蒸气透过率测量的腔衰荡光谱学（CRDS）技术的系统和方法。 在一个实施例中，待测量的蒸气含量被包含在光学腔内。 然后将光注入空腔中达到阈值水平，并测量注入光的延迟时间。 当注入光的波长与蒸汽的吸收特征共振时，衰减时间随着蒸汽含量线性增加。 以这种方式，蒸气含量导致更长的延迟时间，因此可以实时确定通过膜的蒸汽量（膜渗透速率）。

    BROADBAND OR MID-INFRARED FIBER LIGHT SOURCES
    98.
    发明申请
    BROADBAND OR MID-INFRARED FIBER LIGHT SOURCES 审中-公开
    宽带或中红外光纤光源

    公开(公告)号：WO2007061732A2

    公开(公告)日：2007-05-31

    申请号：PCT/US2006/044451

    申请日：2006-11-16

    Applicant: OMNI SCIENCES, INC. ,  ISLAM, Mohammed, N.

    Inventor： ISLAM, Mohammed, N.

    IPC: H01S3/30

    CPC classification number: G01J3/108 ,  G01B9/02091 ,  G01J3/0218 ,  G01J3/0245 ,  G01J3/42 ,  G01J2003/102 ,  G01J2003/423 ,  G02B6/29349 ,  G02F1/365 ,  G02F2001/3528 ,  G02F2202/32 ,  H01S3/06725 ,  H01S3/06754 ,  H01S3/094007 ,  H01S3/094069 ,  H01S3/094076 ,  H01S3/1024 ,  H01S3/302 ,  H01S5/0064 ,  H01S5/0085 ,  H01S5/0092 ,  H01S5/1092 ,  H01S5/146 ,  H01S5/4012 ,  H01S2301/085

    Abstract: A broadband light source includes one or more laser diodes that are capable of generating a pump signal having a wavelength shorter than 2.5 microns, a pulse width of at least 100 picoseconds and a pump optical spectral width. The light source also includes one or more optical amplifiers that are coupled to the pump signal and are capable of amplifying the pump signal to a peak power of at least 500W. The light source further includes a first fiber that is coupled to the one or more optical amplifiers. The first fiber including an anomalous group-velocity dispersion regime and a modulational instability mechanism that operates to modulate the pump signal. In one particular embodiment, the pump signal wavelength resides in the anomalous group- velocity dispersion regime of the first fiber and where different intensities in the pump signal can cause relative motion between different parts of the modulated pump signal produced through modulational instability in the first fiber. The light source also including a nonlinear element that is coupled to the first fiber that is capable of broadening the pump optical spectral width to at least 100nm through a nonlinear effect in the nonlinear element.

    Abstract translation: 宽带光源包括能够产生波长短于2.5微米的泵浦信号，至少100皮秒的脉冲宽度和泵浦光谱宽度的一个或多个激光二极管。 光源还包括耦合到泵浦信号的一个或多个光放大器，并且能够将泵浦信号放大到至少500W的峰值功率。 光源还包括耦合到一个或多个光放大器的第一光纤。 第一光纤包括异常组 - 速度色散方案和用于调制泵浦信号的调制不稳定机制。 在一个特定实施例中，泵浦信号波长驻留在第一光纤的异常群速度色散方案中，并且泵信号中的不同强度可引起通过第一光纤中的调制不稳定性产生的调制泵浦信号的不同部分之间的相对运动 。 光源还包括耦合到第一光纤的非线性元件，其能够通过非线性元件中的非线性效应将泵浦光谱宽度扩展至至少100nm。

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