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    APPARATUS AND METHOD FOR SENSING PARAMETERS USING FIBER BRAGG GRATING (FBG) SENSOR AND COMPARATOR
    71.
    发明申请
    APPARATUS AND METHOD FOR SENSING PARAMETERS USING FIBER BRAGG GRATING (FBG) SENSOR AND COMPARATOR 有权
    使用光纤布拉格光栅（FBG）传感器和比较器传感参数的装置和方法

    公开(公告)号：US20160103017A1

    公开(公告)日：2016-04-14

    申请号：US14513458

    申请日：2014-10-14

    Applicant: Henry H. Hung

    Inventor： Henry H. Hung

    IPC: G01J3/02 ,  G01L1/24 ,  G01K11/32 ,  G01J3/42

    CPC classification number: G01J3/0218 ,  G01J3/0245 ,  G01J3/42 ,  G01J2003/2859 ,  G01J2003/425 ,  G01K11/3206 ,  G01L1/246

    Abstract: Various implementations of an apparatus for sensing one or more parameters are disclosed herein. The apparatus includes a sweeping wavelength laser configured to generate a sweeping wavelength optical signal; an optical fiber including a Fiber Bragg Grating (FBG) structure configured to sense a parameter, wherein the optical fiber is configured to receive the sweeping wavelength optical signal, wherein the FBG structure is configured to produce a reflected optical signal with a particular wavelength in response to the sweeping wavelength optical signal, and wherein the particular wavelength varies as a function of the parameter; a photo detector configured to generate an electrical signal based on the reflected optical signal; a comparator configured to generate a pulse based on a comparison of the electrical signal to a threshold; and a processor configured to generate an indication of the parameter based on the pulse. The comparator may be configured as a Schmitt trigger.

    Abstract translation: 本文公开了用于感测一个或多个参数的装置的各种实施方式。 该装置包括：扫描波长激光器，被配置为产生扫描波长光信号; 包括被配置为感测参数的光纤布拉格光栅（FBG）结构的光纤，其中所述光纤被配置为接收扫描波长光信号，其中所述FBG结构被配置为产生具有特定波长的反射光信号以作出响应 到所述扫描波长光信号，并且其中所述特定波长作为所述参数的函数而变化; 光检测器，被配置为基于所反射的光信号产生电信号; 比较器，被配置为基于电信号与阈值的比较来产生脉冲; 以及处理器，被配置为基于所述脉冲生成所述参数的指示。 比较器可以配置为施密特触发器。

    BROADBAND OR MID-INFRARED FIBER LIGHT SOURCES
    74.
    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：US20150008344A1

    公开(公告)日：2015-01-08

    申请号：US14186171

    申请日：2014-02-21

    Applicant: OMNI MEDSCI, INC.

    Inventor： Mohammed N. ISLAM

    IPC: H01S5/10 ,  H01S5/14 ,  H01S5/00

    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: An optical system for use in material processing includes a plurality of semiconductor diodes coupled to a beam combiner to generate a multiplexed optical beam. A cladding pumped fiber amplifier or laser receives the multiplexed optical beam and forms an intermediate beam having at least a first wavelength. An optical element receives the intermediate beam and forms an output beam with an output beam wavelength, wherein the output beam wavelength is at least in part longer than the first wavelength. A subsystem includes lenses or mirrors to deliver a delivered portion of the output beam to a sample. The delivered output beam has a temporal duration greater than about 30 picoseconds, a repetition rate between continuous wave and Megahertz or higher, and a time averaged intensity of less than approximately 50 MW/cm2. The output beam has a time averaged output power of 20 mW or more.

    Abstract translation: 用于材料处理的光学系统包括耦合到光束组合器的多个半导体二极管以产生多路复用的光束。 包层泵浦光纤放大器或激光器接收复用的光束并形成具有至少第一波长的中间光束。 光学元件接收中间光束并形成具有输出光束波长的输出光束，其中输出光束波长至少部分地长于第一波长。 子系统包括透镜或反射镜，用于将输出光束的传送部分传送到样品。 所输出的输出光束具有大于约30皮秒的时间持续时间，连续波和兆赫兹或更高之间的重复频率以及小于约50MW / cm 2的时间平均强度。 输出光束的时间平均输出功率为20mW以上。

    SYSTEMS AND METHODS FOR PERMEABILITY RATE TESTING OF BARRIER FILMS
    75.
    发明申请
    SYSTEMS AND METHODS FOR PERMEABILITY RATE TESTING OF BARRIER FILMS 有权
    障碍物膜渗透率测试的系统和方法

    公开(公告)号：US20120062896A1

    公开(公告)日：2012-03-15

    申请号：US13217519

    申请日：2011-08-25

    Applicant: Aziz Mahfoud Familia ,  David S. Shackleford ,  Nafih Mekhilef ,  Mike A. Zimmerman

    Inventor： Aziz Mahfoud Familia ,  David S. Shackleford ,  Nafih Mekhilef ,  Mike A. Zimmerman

    IPC: G01N21/59

    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: 本发明涉及利用实现用于测量蒸气透过率的空腔衰减光谱（CRDS）技术的系统和方法。 在一个实施例中，待测量的蒸汽含量被包含在光腔内。 然后将光注入腔中达阈值水平，并测量注入光的延迟时间。 当注入的光的波长与蒸气的吸收特征共振时，衰减时间作为蒸汽含量的函数线性增加。 以这种方式，蒸汽含量导致更长的延迟时间，因此可以实时确定通过膜的蒸气的量（膜渗透速率）。

    Method and apparatus for infrared spectrometry
    76.
    发明申请
    Method and apparatus for infrared spectrometry 有权
    红外光谱法的方法和装置

    公开(公告)号：US20100108886A1

    公开(公告)日：2010-05-06

    申请号：US11155927

    申请日：2006-05-18

    Applicant: Leslie Brandon Shaw ,  Jasbinder S. Sanghera ,  Ishwar D. Aggarwal

    Inventor： Leslie Brandon Shaw ,  Jasbinder S. Sanghera ,  Ishwar D. Aggarwal

    IPC: G01J5/02

    CPC classification number: G01J3/02 ,  G01J3/0218 ,  G01J3/0245 ,  G01J3/0256 ,  G01J3/06 ,  G01J3/453

    Abstract: A Fourier-Transform Infrared (FTIR) spectrometer for operation in the mid- and long-wave infrared region (about 2-15 micron wavelengths) is disclosed. The FTIR spectrometer is composed of IR-transmitting fiber and uses a broadband IR source. A fiber stretcher is provided to provide a path difference between a first path and a second path having a sample associated therewith. Stretching of the fiber provides a path difference sufficient to generate an interferogram that can subsequently be analyzed to obtain information about a sample. A method for use of the apparatus of the invention is also disclosed. The method involves stretching of an IR-transmitting fiber to create a path difference sufficient to generate an interferogram. Various aspects of these features enable the construction of compact, portable spectrometers.

    Abstract translation: 公开了用于在中长波红外区域（约2-15微米波长）中操作的傅里叶变换红外（FTIR）光谱仪。 FTIR光谱仪由红外发射光纤组成，使用宽带红外线源。 提供纤维拉伸器以提供具有与其相关联的样品的第一路径和第二路径之间的路径差。 纤维的拉伸提供足以产生干涉图的路径差异，随后可以分析干涉图以获得关于样品的信息。 还公开了本发明的装置的使用方法。 该方法涉及拉伸IR发射光纤以产生足以产生干涉图的路径差。 这些特征的各个方面使得能够构造紧凑的便携式光谱仪。

    RAMAN SPECTROMETER HAVING WAVELENGTH-SELECTIVE OPTICAL AMPLIFICATION
    77.
    发明申请
    RAMAN SPECTROMETER HAVING WAVELENGTH-SELECTIVE OPTICAL AMPLIFICATION 审中-公开
    具有波长选择性光学放大的拉曼光谱仪

    公开(公告)号：US20100079753A1

    公开(公告)日：2010-04-01

    申请号：US12242879

    申请日：2008-09-30

    Applicant: Markus P. Hehlen

    Inventor： Markus P. Hehlen

    IPC: G01J3/44

    CPC classification number: G01J3/44 ,  G01J3/02 ,  G01J3/0245 ,  G01J3/4338

    Abstract: An apparatus and method for obtaining Raman spectra that are suitable for continuous real-time monitoring, utilizing the basic technique of Raman spectroscopy in cooperation with wavelength-selective optical amplification are described. The invention improves the detection sensitivity of conventional Raman spectroscopy by orders of magnitude by providing strong wavelength-selective optical amplification and narrowband detection of the intense driving laser and the weak Raman signal(s), thereby essentially eliminating the driving laser signal from the detector and detection electronics. The invention is effective for both Stokes and anti-Stokes Raman lines, and either where the incident laser wavelength is fixed and the Raman spectrum is recorded by analyzing the output of the fiber amplifier with a spectrometer, or where the detection wavelength is fixed and the Raman spectrum is recorded by tuning the wavelength of the laser.

    Abstract translation: 描述了利用拉曼光谱与波长选择光学放大协作的基本技术，获得适合于连续实时监测的拉曼光谱的装置和方法。 本发明通过提供强激光和弱拉曼信号的强波长选择性光放大和窄带检测来提高常规拉曼光谱的检测灵敏度，从而基本上消除了来自检测器的驱动激光信号， 检测电子。 本发明对斯托克斯和反斯托克斯拉曼线均有效，并且其中入射激光波长固定，并且通过用光谱仪分析光纤放大器的输出或检测波长固定的方式记录拉曼光谱， 通过调谐激光的波长来记录拉曼光谱。

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