APPARATUS FOR MEASURING A FREQUENCY-DOMAIN OPTICAL COHERENCE TOMOGRAPHY POWER SPECTRUM FROM A SAMPLE
    31.
    发明申请
    APPARATUS FOR MEASURING A FREQUENCY-DOMAIN OPTICAL COHERENCE TOMOGRAPHY POWER SPECTRUM FROM A SAMPLE 有权
    用于从样品测量频域的光学相干光谱仪的设备

    公开(公告)号:US20110317167A1

    公开(公告)日:2011-12-29

    申请号:US13224555

    申请日:2011-09-02

    Abstract: An apparatus is provided for measuring a frequency-domain optical coherence tomography power spectrum from a sample. The apparatus includes a partially reflective element configured to be optically coupled to a light source and to the sample. A first portion of light from the light source is configured to be reflected by the partially reflective element. A second portion of light from the light source is configured to propagate through the partially reflective element, to impinge the sample, and to reflect from the sample. The apparatus is configured to receive the first and second portions of light and to measure the frequency-domain optical coherence tomography power spectrum in response to the first portion of light and the second portion of light.

    Abstract translation: 提供了一种用于从样本测量频域光学相干断层摄影功率谱的装置。 该装置包括被配置为光耦合到光源和样品的部分反射元件。 来自光源的第一部分光被构造成被部分反射元件反射。 来自光源的第二部分光被配置成传播通过部分反射元件,以撞击样品并从样品反射。 该装置被配置为接收第一和第二部分光并且响应于第一部分光和第二部分光来测量频域光学相干断层摄影功率谱。

    OPTICAL-FIBER-COMPATIBLE ACOUSTIC SENSOR
    32.
    发明申请
    OPTICAL-FIBER-COMPATIBLE ACOUSTIC SENSOR 有权
    光纤兼容声学传感器

    公开(公告)号:US20110268384A1

    公开(公告)日:2011-11-03

    申请号:US13047668

    申请日:2011-03-14

    Abstract: An acoustic sensor includes a diaphragm having a reflective element. The sensor has an optical fiber positioned relative to the reflective element such that light emitted from the optical fiber is reflected by the reflective element. A first end of the optical fiber and the reflective element form an optical cavity therebetween. The acoustic sensor further includes a structural element mechanically coupled to the diaphragm and the optical fiber. The structural element includes a material having a coefficient of thermal expansion substantially similar to the coefficient of thermal expansion of the optical fiber. For example, the material can be silica.

    Abstract translation: 声传感器包括具有反射元件的隔膜。 传感器具有相对于反射元件定位的光纤,使得从光纤发射的光被反射元件反射。 光纤的第一端和反射元件在其间形成光腔。 声学传感器还包括机械耦合到隔膜和光纤的结构元件。 结构元件包括具有基本上类似于光纤的热膨胀系数的热膨胀系数的材料。 例如,该材料可以是二氧化硅。

    LASER-DRIVEN OPTICAL GYROSCOPE HAVING A NON-NEGLIGIBLE SOURCE COHERENCE LENGTH
    33.
    发明申请
    LASER-DRIVEN OPTICAL GYROSCOPE HAVING A NON-NEGLIGIBLE SOURCE COHERENCE LENGTH 有权
    激光驱动的光学陀螺仪具有不可忽略的源距离长度

    公开(公告)号:US20100302548A1

    公开(公告)日:2010-12-02

    申请号:US12767643

    申请日:2010-04-26

    CPC classification number: G01C19/721

    Abstract: A fiber-optic sensor, a method of configuring a fiber-optic sensor, and a method of using a fiber-optic sensor are provided. The fiber-optic sensor includes an optical fiber coil having a length and a laser source optically coupled to the coil. The laser source has a coherence length. Light from the source is transmitted to the coil as a first signal propagating along the coil in a first direction and a second signal propagating along the coil in a second direction opposite to the first direction. The optical paths of the first signal and the second signal are substantially reciprocal with one another and the first signal and the second signal are combined together after propagating through the coil to generate a third signal. The coherence length is greater than 1 meter or is in a range between 200 microns and 10 centimeters.

    Abstract translation: 提供了光纤传感器,配置光纤传感器的方法以及使用光纤传感器的方法。 光纤传感器包括具有光学耦合到线圈的长度的光纤线圈和激光源。 激光源具有相干长度。 来自源极的光作为沿着线圈沿第一方向传播的第一信号被传输到线圈,而第二信号沿着与第一方向相反的第二方向沿着线圈传播。 第一信号和第二信号的光路基本上彼此相互倒数,并且第一信号和第二信号在传播通过线圈之后组合在一起以产生第三信号。 相干长度大于1米或处于200微米至10厘米之间的范围内。

    FIBER OPTIC SENSOR USING A BRAGG FIBER
    34.
    发明申请
    FIBER OPTIC SENSOR USING A BRAGG FIBER 有权
    光纤传感器使用BRAGG光纤

    公开(公告)号:US20100220332A1

    公开(公告)日:2010-09-02

    申请号:US12775379

    申请日:2010-05-06

    CPC classification number: G01C19/722 G02B6/02328 G02B6/02361

    Abstract: An optical sensor includes an optical coupler configured to receive a first optical signal and to split the first optical signal into a second optical signal and a third optical signal. The optical sensor further includes a Bragg fiber in optical communication with the optical coupler. The second optical signal and the third optical signal counterpropagate through the Bragg fiber and return to the third port and the second port, respectively.

    Abstract translation: 光学传感器包括光耦合器,被配置为接收第一光信号并且将第一光信号分裂为第二光信号和第三光信号。 光学传感器还包括与光耦合器光学通信的布拉格光纤。 第二光信号和第三光信号通过布拉格光纤反向传播并分别返回到第三端口和第二端口。

    LOW-NOISE FIBER OPTIC SENSOR UTILIZING A LASER SOURCE
    36.
    发明申请
    LOW-NOISE FIBER OPTIC SENSOR UTILIZING A LASER SOURCE 有权
    低噪声光纤传感器利用激光源

    公开(公告)号:US20090195785A1

    公开(公告)日:2009-08-06

    申请号:US12271760

    申请日:2008-11-14

    CPC classification number: G01C19/721

    Abstract: A fiber-optic sensor includes an optical fiber coil and a laser source optically coupled to the coil. Light from the source is transmitted to the coil as a first signal propagating along the coil in a first direction and a second signal propagating along the coil in a second direction opposite to the first direction. The optical paths of the first signal and the second signal are substantially reciprocal with one another and the first signal and the second signal are combined together after propagating through the coil to generate a third signal. The laser source is frequency-modulated or can have a coherence length longer than a length of the coil.

    Abstract translation: 光纤传感器包括光纤线圈和光耦合到线圈的激光源。 来自源极的光作为沿着线圈沿第一方向传播的第一信号被传输到线圈,而第二信号沿着与第一方向相反的第二方向沿着线圈传播。 第一信号和第二信号的光路基本上彼此相互倒数,并且第一信号和第二信号在传播通过线圈之后组合在一起以产生第三信号。 激光源被调频,或者可以具有比线圈长度更长的相干长度。

    PHOTONIC CRYSTAL STRUCTURE SENSOR
    37.
    发明申请
    PHOTONIC CRYSTAL STRUCTURE SENSOR 有权
    光电晶体结构传感器

    公开(公告)号:US20080226217A1

    公开(公告)日:2008-09-18

    申请号:US11971714

    申请日:2008-01-09

    CPC classification number: G01H9/004 G02B6/264

    Abstract: An acoustic sensor and a method of fabricating an acoustic sensor are provided. The acoustic sensor includes at least one photonic crystal structure and an optical fiber having an end optically coupled to the at least one photonic crystal structure. The acoustic sensor further includes a structural portion mechanically coupled to the at least one photonic crystal structure and to the optical fiber. The at least one photonic crystal structure, the optical fiber, and the structural portion substantially bound a region having a volume such that a frequency response of the acoustic sensor is generally flat in a range of acoustic frequencies.

    Abstract translation: 提供声传感器和制造声传感器的方法。 声传感器包括至少一个光子晶体结构和具有光学耦合到至少一个光子晶体结构的端部的光纤。 声学传感器还包括机械耦合到至少一个光子晶体结构和光纤的结构部分。 至少一个光子晶体结构,光纤和结构部分基本上结合了具有音量的区域,使得声学传感器的频率响应在声频范围内通常是平坦的。

    Method of measuring a physical function using a composite function which includes the physical function and an arbitrary reference function
    38.
    发明授权
    Method of measuring a physical function using a composite function which includes the physical function and an arbitrary reference function 有权
    使用包括物理功能和任意参考功能的复合函数来测量物理功能的方法

    公开(公告)号:US06856393B2

    公开(公告)日:2005-02-15

    申请号:US10378591

    申请日:2003-03-03

    Abstract: A method measures a nolinearity profile of a sample with at least one sample surface and having a sample nonlinearity profile along a sample line through a predetermined point on the sample surface. The sample line is oriented perpendicularly to the sample surface. The method includes measuring a Fourier transform of the sample nonlinearity profile and obtaining a reference nonlinearity profile from a reference material. The method includes forming a first composite sample having a first composite nonlinearity profile and forming a second composite sample having a second composite nonlinearity profile inequivalent to the first composite nonlinearity profile. The method further includes measuring a Fourier transform of the first composite nonlinearity profile and measuring a Fourier transform of the second composite nonlinearity profile. The method further includes calculating the sample nonlinearity profile using the Fourier transforms of the sample nonlinearity profile, the reference nonlinearity profile, the first composite nonlinearity profile, and the second composite nonlinearity profile.

    Abstract translation: 一种方法测量具有至少一个样品表面并具有沿样品线的样品非线性轮廓通过样品表面上的预定点的样品的非线性分布。 样品线垂直于样品表面取向。 该方法包括测量样本非线性分布的傅立叶变换并从参考材料获得参考非线性分布。 该方法包括形成具有第一复合非线性轮廓的第一复合样品,并形成具有不等于第一复合非线性轮廓的第二复合非线性轮廓的第二复合样品。 该方法还包括测量第一复合非线性分布的傅立叶变换并测量第二复合非线性分布的傅里叶变换。 该方法还包括使用样本非线性分布,参考非线性分布,第一复合非线性分布和第二复合非线性分布的傅里叶变换来计算样本非线性分布。

    OPTICAL SENSOR USING A HOLLOW CORE WAVEGUIDE
    40.
    发明申请
    OPTICAL SENSOR USING A HOLLOW CORE WAVEGUIDE 有权
    使用中空波导的光学传感器

    公开(公告)号:US20120281226A1

    公开(公告)日:2012-11-08

    申请号:US13493919

    申请日:2012-06-11

    CPC classification number: G01C19/722 G02B6/02328 G02B6/02361

    Abstract: An optical sensor includes at least a portion of an optical waveguide having a hollow core. The optical waveguide substantially confines a first optical signal and a second optical signal within the hollow core as the first optical signal and the second optical signal counterpropagate through the optical waveguide. Interference between the first optical signal and the second optical signal is responsive to perturbation of the at least a portion of the optical waveguide.

    Abstract translation: 光学传感器包括具有中空芯的光波导的至少一部分。 当第一光信号和第二光信号通过光波导反向传播时,光波导基本上限制在中空芯内的第一光信号和第二光信号。 第一光信号和第二光信号之间的干扰响应于光波导的至少一部分的扰动。

Patent Agency Ranking