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公开(公告)号：US20120099803A1
公开(公告)日：2012-04-26
申请号：US13290982
申请日：2011-11-07
IPC分类号： G06K9/36
摘要： A method utilizes an optical image processing system. The method includes calculating a product of (i) a measured magnitude of a Fourier transform of a complex transmission function of an object or optical image and (ii) an estimated phase term of the Fourier transform of the complex transmission function. The method further includes calculating an inverse Fourier transform of the product, wherein the inverse Fourier transform is a spatial function. The method further includes calculating an estimated complex transmission function by applying at least one constraint to the inverse Fourier transform.
摘要翻译： 一种方法利用光学图像处理系统。 该方法包括：计算（i）物体或光学图像的复数传播函数的傅里叶变换的测量幅度和（ii）复数传递函数的傅立叶变换的估计相位项的乘积。 该方法还包括计算乘积的逆傅里叶变换，其中逆傅立叶变换是空间函数。 该方法还包括通过对傅里叶逆变换应用至少一个约束来计算估计的复传输函数。
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12.发明申请公开(公告)号：US20110317167A1
公开(公告)日：2011-12-29
申请号：US13224555
申请日：2011-09-02
IPC分类号： G01B9/02
CPC分类号： A61B5/0066 , A61B5/0073 , A61B5/7257 , G01B9/02044 , G01B9/02083 , G01B9/02091 , G01N21/4795
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20110268384A1
公开(公告)日：2011-11-03
申请号：US13047668
申请日：2011-03-14
CPC分类号： G01H9/004 , G02B6/262 , G02B6/32 , G02B2006/12138 , Y10T29/49826
摘要： 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.
摘要翻译： 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。
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14.发明申请OPTICAL SENSOR UTILIZING HOLLOW-CORE PHOTONIC BANDGAP FIBER WITH LOW PHASE THERMAL CONSTANT 有权光电传感器利用低相热常数的中空光子带状光纤公开(公告)号：US20100039649A1
公开(公告)日：2010-02-18
申请号：US12575302
申请日：2009-10-07
IPC分类号： G01C19/72
CPC分类号： G01D5/3538 , G01C19/721 , G01D5/35322 , G02B6/02328
摘要： An optical sensor includes an optical coupler. The optical sensor further includes a photonic bandgap fiber having a hollow core and an inner cladding generally surrounding the core. The photonic bandgap fiber is in optical communication with the optical coupler. Light signals counterpropagate through the photonic bandgap fiber and return to the optical coupler. The photonic bandgap fiber has a phase thermal constant S less than 8 parts-per-million per degree Celsius.
摘要翻译： 光学传感器包括光耦合器。 光学传感器还包括具有中空芯和通常围绕芯的内包层的光子带隙光纤。 光子带隙光纤与光耦合器光通信。 光信号通过光子带隙光纤反向传播并返回到光耦合器。 光子带隙光纤的相位热常数S小于每摄氏摄氏度百万分之八。
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公开(公告)号：US20090195785A1
公开(公告)日：2009-08-06
申请号：US12271760
申请日：2008-11-14
IPC分类号： G01C19/72
CPC分类号： G01C19/721
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20080226217A1
公开(公告)日：2008-09-18
申请号：US11971714
申请日：2008-01-09
IPC分类号： G02B6/00
摘要： 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.
摘要翻译： 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。
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17.发明授权公开(公告)号：US06856393B2
公开(公告)日：2005-02-15
申请号：US10378591
申请日：2003-03-03
CPC分类号： G01N21/21 , G01J11/00 , G01N21/4788 , G01N21/636 , G01N2021/4723 , G01N2021/4735
摘要： 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.
摘要翻译： 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。
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18.发明申请公开(公告)号：US20130022307A1
公开(公告)日：2013-01-24
申请号：US13554995
申请日：2012-07-20
申请人： Onur Kilic , Michel J.F. Digonnet , Gordon S. Kino , Olav Solgaard , Shrestha Basu Mallick , Onur Can Akkaya
发明人： Onur Kilic , Michel J.F. Digonnet , Gordon S. Kino , Olav Solgaard , Shrestha Basu Mallick , Onur Can Akkaya
摘要： An optical structure includes an optical waveguide and at least one photonic crystal structure. The optical structure also includes a structural portion mechanically coupled to the optical waveguide and the at least one photonic crystal structure such that a region substantially bounded by the structural portion, the optical waveguide, and the at least one photonic crystal structure has a specified volume.
摘要翻译： 光学结构包括光波导和至少一个光子晶体结构。 光学结构还包括机械耦合到光波导和至少一个光子晶体结构的结构部分，使得基本上由结构部分，光波导和至少一个光子晶体结构限定的区域具有指定的体积。
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公开(公告)号：US20120186353A1
公开(公告)日：2012-07-26
申请号：US13356432
申请日：2012-01-23
IPC分类号： G01H9/00
摘要： An acoustic sensor includes at least one photonic crystal structure and an optical fiber in optical communication with the at least one photonic crystal structure. The at least one photonic crystal structure has at least one optical resonance with a resonance frequency and a resonance lineshape, wherein at least one of the resonance frequency and the resonance lineshape is responsive to acoustic waves incident upon the acoustic sensor. The acoustic sensor further includes an optical fiber in optical communication with the at least one photonic crystal structure. The optical fiber is configured to transmit light which impinges the at least one photonic crystal structure and to receive at least a portion of the light which impinges the at least one photonic crystal structure.
摘要翻译： 声学传感器包括至少一个光子晶体结构和与所述至少一个光子晶体结构光学通信的光纤。 至少一个光子晶体结构具有至少一个具有谐振频率和谐振线形的光学谐振，其中谐振频率和谐振线形形状中的至少一个对入射到声学传感器上的声波作出响应。 声学传感器还包括与至少一个光子晶体结构光学通信的光纤。 光纤被配置为透射照射至少一个光子晶体结构的光并且接收照射至少一个光子晶体结构的光的至少一部分。
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公开(公告)号：US20110176140A1
公开(公告)日：2011-07-21
申请号：US13027873
申请日：2011-02-15
IPC分类号： G01C19/72
CPC分类号： G01C19/721
摘要： 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 optical signal and a second optical signal counter-propagating through the coil. The optical paths of the first optical signal and the second optical signal are substantially reciprocal with one another and the first optical signal and the second optical signal are combined together after counter-propagating through the coil to generate a third optical signal. The laser source is frequency-modulated or can have a coherence length longer than a length of the coil.
摘要翻译： 光纤传感器包括光纤线圈和光耦合到线圈的激光源。 来自光源的光作为第一光信号传输到线圈，第二光信号通过线圈反向传播。 第一光信号和第二光信号的光路基本上互相倒数，并且第一光信号和第二光信号在通过线圈反向传播之后被组合在一起，以产生第三光信号。 激光源被调频，或者可以具有比线圈长度更长的相干长度。
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