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81. 发明授权

US08082117B2 Optical image processing using minimum phase functions 有权
标题翻译：使用最小相位函数的光学图像处理
公开(公告)号：US08082117B2
公开(公告)日：2011-12-20
申请号：US12623322
申请日：2009-11-20
申请人： Aydogan Ozcan , Michel J. F. Digonnet , Gordon S. Kino
发明人： Aydogan Ozcan , Michel J. F. Digonnet , Gordon S. Kino
IPC分类号： G06F17/14 , G01N21/00
CPC分类号： G06E3/003 , G01J3/45 , G01J11/00
摘要： A method utilizes an optical image processing system. The method includes providing a measured magnitude of the Fourier transform of a complex transmission function of an object or optical image. The method further includes providing an estimated phase term of the Fourier transform of the complex transmission function. The method further includes multiplying the measured magnitude and the estimated phase term to generate an estimated Fourier transform of the complex transmission function. The method further includes calculating an inverse Fourier transform of the estimated Fourier transform, 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。该方法包括提供物体或光学图像的复数传输函数的傅里叶变换的测量幅度。该方法还包括提供复传输函数的傅立叶变换的估计相位项。该方法还包括将测量的幅度和估计的相位项相乘以产生复数传输函数的估计傅里叶变换。该方法还包括计算傅立叶逆变换的傅立叶逆变换，其中逆傅里叶变换是空间函数。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。

82. 发明授权

US08032322B2 Apparatus for measuring a frequency-domain optical coherence tomography power spectrum from a sample 有权
标题翻译：用于从样本测量频域光学相干断层摄影功率谱的装置
公开(公告)号：US08032322B2
公开(公告)日：2011-10-04
申请号：US12372225
申请日：2009-02-17
申请人： Aydogan Ozcan , Michel J. F. Digonnet , Gordon S. Kino
发明人： Aydogan Ozcan , Michel J. F. Digonnet , Gordon S. Kino
IPC分类号： G06F17/14 , G01N21/00
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 broadband light source, an optical spectrum analyzer, and a partially reflective element optically coupled to the light source, to the optical spectrum analyzer, and to the sample. A first portion of light from the light source is reflected by the partially reflective element and propagates to the optical spectrum analyzer. A second portion of light from the light source propagating through the partially reflective element, impinging the sample, reflecting from the sample, and propagating to the optical spectrum analyzer.
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。该装置包括宽带光源，光谱分析仪和与光源光耦合到光谱分析仪和样品的部分反射元件。来自光源的光的第一部分被部分反射元件反射并传播到光谱分析仪。来自光源的光的第二部分传播通过部分反射元件，撞击样品，从样品反射并传播到光谱分析仪。

83. 发明授权

US07853107B2 Multiple-core optical fiber with coupling between the cores 有权
标题翻译：多芯光纤与芯之间具有耦合
公开(公告)号：US07853107B2
公开(公告)日：2010-12-14
申请号：US12435294
申请日：2009-05-04
申请人： Vinayak Dangui , Michel J. F. Digonnet , Gordon S. Kino
发明人： Vinayak Dangui , Michel J. F. Digonnet , Gordon S. Kino
IPC分类号： G02B6/032
CPC分类号： G02B6/02042 , G02B6/02328 , G02B6/02338 , G02B6/02347 , G02B6/2821
摘要： An optical fiber includes a cladding, a first core, and a second core. At least one of the first core and the second core is hollow and is substantially surrounded by the cladding. At least a portion of the first core is generally parallel to and spaced from at least a portion of the second core. The optical fiber includes a defect substantially surrounded by the cladding, the defect increasing a coupling coefficient between the first core and the second core.
摘要翻译：光纤包括包层，第一芯和第二芯。第一芯和第二芯中的至少一个是中空的并且基本上被包层包围。第一芯的至少一部分通常与第二芯的至少一部分平行并间隔开。光纤包括基本上被包层围绕的缺陷，缺陷增加了第一芯和第二芯之间的耦合系数。

84. 发明授权

US07619743B2 Optical sensor utilizing hollow-core photonic bandgap fiber with low phase thermal constant 有权
标题翻译：光学传感器利用空心光子带隙光纤具有低相位热常数
公开(公告)号：US07619743B2
公开(公告)日：2009-11-17
申请号：US11770660
申请日：2007-06-28
申请人： Michel J. F. Digonnet , Hyang Kyun Kim , Vinayak Dangui , Gordon S. Kino
发明人： Michel J. F. Digonnet , Hyang Kyun Kim , Vinayak Dangui , Gordon S. Kino
IPC分类号： G01C19/72
CPC分类号： G01D5/3538 , G01C19/721 , G01D5/35322 , G02B6/02328
摘要： An optical sensor includes a directional coupler comprising at least a first port, a second port, and a third port. The first port is in optical communication with the second port and with the third port such that a first optical signal received by the first port is split into a second optical signal that propagates to the second port and a third optical signal that propagates to the third port. 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 second port and with the third port. The second optical signal and the third optical signal counterpropagate through the photonic bandgap fiber and return to the third port and the second port, respectively. The photonic bandgap fiber has a phase thermal constant S less than 8 parts-per-million per degree Celsius.
摘要翻译：光学传感器包括至少包括第一端口，第二端口和第三端口的定向耦合器。第一端口与第二端口和第三端口光通信，使得由第一端口接收的第一光信号被分裂成传播到第二端口的第二光信号和传播到第三端口的第三光信号港口。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。光子带隙光纤与第二端口和第三端口光通信。第二光信号和第三光信号通过光子带隙光纤反向传播并分别返回到第三端口和第二端口。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。

85. 发明授权

US07269190B2 Er-doped superfluorescent fiber source with enhanced mean wavelength stability 有权
标题翻译：掺铒超荧光光纤源，具有增强的平均波长稳定性
公开(公告)号：US07269190B2
公开(公告)日：2007-09-11
申请号：US10676543
申请日：2003-10-01
申请人： Hee Gap Park , Michel J. F. Digonnet , Gordon S. Kino
发明人： Hee Gap Park , Michel J. F. Digonnet , Gordon S. Kino
IPC分类号： H01S3/13
CPC分类号： H01S3/06754 , H01S3/0064 , H01S3/06795 , H01S3/094023 , H01S3/10007 , H01S3/10069 , H01S3/1608
摘要： An erbium-doped (Er-doped) superfluorescent fiber source (SFS) has an enhanced mean wavelength stability. A method determines an estimated mean wavelength of a SFS. The method includes providing an Er-doped SFS having an actual mean wavelength. The method further includes configuring the SFS such that the actual mean wavelength has a dependence on the temperature of the EDF. The method further includes obtaining the dependence of the actual mean wavelength on the temperature of the EDF. The method further includes measuring the temperature of the EDF. The method further includes calculating the estimated mean wavelength using the measured temperature of the EDF and the dependence of the actual mean wavelength on the temperature of the EDF.
摘要翻译：铒掺杂（Er掺杂）超荧光光纤源（SFS）具有增强的平均波长稳定性。一种方法确定SFS的估计平均波长。该方法包括提供具有实际平均波长的Er掺杂SFS。该方法还包括配置SFS，使得实际平均波长与EDF的温度有关。该方法还包括获得实际平均波长对EDF温度的依赖性。该方法还包括测量EDF的温度。该方法还包括使用EDF的测量温度和实际平均波长对EDF的温度的依赖性来计算估计的平均波长。

86. 发明授权

US07236246B2 Method of measuring a physical function using a composite function which includes the physical function and an arbitrary reference function 有权
标题翻译：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：US07236246B2
公开(公告)日：2007-06-26
申请号：US11355614
申请日：2006-02-16
申请人： Aydogan Ozcan , Michel J. F. Digonnet , Gordon S. Kino
发明人： Aydogan Ozcan , Michel J. F. Digonnet , Gordon S. Kino
IPC分类号： G01N21/59
CPC分类号： G01N21/21 , G01J11/00 , G01N21/4788 , G01N21/636 , G01N2021/4723 , G01N2021/4735
摘要： A method for measuring a physical function forms a symmetric composite function by combining the physical function with a reference function. The method obtains a Fourier transform of the symmetric composite function. The method calculates an inverse Fourier transform of the obtained Fourier transform, wherein the calculated inverse Fourier transform provides information regarding the physical function. The physical function can be a nonlinearity profile of a sample with at least one sample surface. The physical function can alternatively by a sample temporal waveform of a sample optical pulse.
摘要翻译：用于测量物理功能的方法通过将物理功能与参考功能组合来形成对称复合函数。该方法获得对称复合函数的傅立叶变换。该方法计算所获得的傅立叶变换的傅立叶逆变换，其中所计算的傅里叶逆变换提供关于物理功能的信息。物理功能可以是具有至少一个样品表面的样品的非线性分布。物理功能可以替代地通过采样光脉冲的采样时间波形。

87. 发明授权

US06584241B2 Fast, environmentally-stable fiber switches using a Sagnac interferometer 有权
公开(公告)号：US06584241B2
公开(公告)日：2003-06-24
申请号：US10072559
申请日：2002-02-08
申请人： Monica K. Davis , Michel J. F. Digonnet
发明人： Monica K. Davis , Michel J. F. Digonnet
IPC分类号： G02F1295
CPC分类号： G02F1/3519
摘要： A fast, environmentally-stable fiber switch uses a Sagnac interferometer having an active fiber portion located asymmetrically in the loop of the interferometer. A pump pulse is applied to the interferometric loop and acts upon the active fiber portion to cause a change in its refractive index either by a thermal effect or by a non-thermal nonlinear effect. Because the active fiber portion is located asymmetrically in the loop, the change in refractive index of the active fiber portion is seen by the clockwise propagating light signal and the counterclockwise propagating light signal at different times, thus causing a temporary difference in the phase changes experienced by the two counterpropagating light signals. The temporary difference in the phase changes causes the two light signals to combine constructively at a switched output port of the input/output coupler of the interferometric loop until the phase changes of the two signals are again the same, at which time the signals combine at an unswitched output port of the coupler. The on-time of the switch is set primarily by the length of the Sagnac loop, and the fall time, which is caused by the Sagnac architecture, can be fast, even with a relatively slow active fiber.

88. 发明授权

US06483628B1 Polarization and wavelength stable superfluorescent sources using Faraday rotator mirrors 有权
标题翻译：使用法拉第旋转镜的极化和波长稳定的超荧光源
公开(公告)号：US06483628B1
公开(公告)日：2002-11-19
申请号：US09429044
申请日：1999-10-29
申请人： Michel J. F. Digonnet , Dario G. Falquier
发明人： Michel J. F. Digonnet , Dario G. Falquier
IPC分类号： H01S300
CPC分类号： H01S3/06795
摘要： The wavelength stability of superfluorescent sources is controlled with optical arrangements in which the polarization-dependent gain (PDG) induced by the polarized pump light is reduced. In one apparatus and method, a Faraday rotator mirror is used at the end of the waveguide in the superfluorescent source. In another apparatus and method, the birefringence of the waveguide is exploited in conjunction with a Faraday rotator mirror to further average out the effect of PDG on the mean wavelength difference between the spectral outputs of orthogonal polarization components.
摘要翻译：超荧光源的波长稳定性由偏振泵浦光引起的偏振相关增益（PDG）减小的光学配置来控制。在一种装置和方法中，在超荧光源中在波导的末端使用法拉第旋转镜。在另一种装置和方法中，波导的双折射与法拉第旋转镜结合使用，以进一步平衡PDG对正交偏振分量的光谱输出之间的平均波长差的影响。

89. 发明授权

US06466364B1 Gain flattening with nonlinear sagnac amplifiers 有权
公开(公告)号：US06466364B1
公开(公告)日：2002-10-15
申请号：US10060868
申请日：2002-01-29
申请人： Benjamin J. Vakoc , Michel J. F. Digonnet
发明人： Benjamin J. Vakoc , Michel J. F. Digonnet
IPC分类号： H01S300
CPC分类号： H04B10/294 , G02F1/3519 , H01S3/06754 , H01S3/1302 , H01S2301/04 , H01S2301/06 , H04B10/2935
摘要： An apparatus and a method provide gain flattening in communications systems wherein a large number of optical signals at different wavelengths must be amplified while maintaining signal power within an acceptable range. Because of differences in gain of typical optical amplifiers as a function of wavelength and input power, the signals at different wavelengths are not amplified by the same amounts. Thus, when amplified multiple times, certain signals tend to become severely attenuated to the point of being no longer useable. The present gain flattening apparatus and method cause signals having higher gain-power products to be attenuated by a greater amount in response to Kerr-induced phase shifting such that after multiple stages of amplification, all the signal powers converge toward a small range of acceptable output powers. The apparatus provides amplification, multiple times, of a series of signals with a plurality of wavelengths covering a very wide spectral range, while maintaining the power of all the signals within a small range. The spread of this signal power range is robust against changes in the signal power, against changes in the number of signals, and, to some degree, against changes in the amplifier's pump power. The apparatus design is also robust against manufacturing changes in the parameters of the apparatus' components. The apparatus and invention are preferably implemented as multiple nonlinear Sagnac amplifiers having erbium-doped fiber amplifiers positioned asymmetrically in an interferometer loop.

90. 发明授权

US06385354B1 Electrostrictive fiber modulators 有权
标题翻译：电致伸缩纤维调节剂
公开(公告)号：US06385354B1
公开(公告)日：2002-05-07
申请号：US09259832
申请日：1999-03-01
申请人： Michel J. F. Digonnet , Alice Liu , Gordon S. Kino
发明人： Michel J. F. Digonnet , Alice Liu , Gordon S. Kino
IPC分类号： G02F101
CPC分类号： G02F1/0134 , G02F1/3136
摘要： An apparatus modulates the phase of an optical signal. The apparatus includes an optical medium for propagating the optical signal. At least one electrode is positioned in proximity with the medium. The electrode induces an electric field within the medium in response to an AC voltage to produce variations in the index of refraction of the optical medium through the electrostrictive effect. Preferably, the phase of the optical signal is modulated such that polarization components of the optical signal parallel to and orthogonal to the electric field experience an equal phase shift. In certain embodiments, a DC voltage is supplied to the optical medium. Alternatively, the DC voltage within the optical medium may arise from (or be enhanced by) poling the optical medium. Certain embodiments of the present invention include two electrodes positioned on opposite sides of the optical medium. The apparatus is advantageously used in an interferometer to form a device that modulates the amplitude of the optical signal. The apparatus may also be used in an interferometer to form an optical switching device.
摘要翻译：一种装置调制光信号的相位。该装置包括用于传播光信号的光学介质。至少一个电极定位在介质附近。电极响应于AC电压在介质内引起电场，以通过电致伸缩效应产生光学介质的折射率的变化。优选地，调制光信号的相位，使得平行于和与电场正交的光信号的偏振分量经历相等的相移。在某些实施例中，DC电压被提供给光学介质。或者，光学介质内的DC电压可以由（或通过）光学介质极化而产生。本发明的某些实施例包括位于光学介质的相对侧上的两个电极。该装置有利地用于干涉仪中以形成调制光信号幅度的装置。该装置还可用于干涉仪中以形成光开关装置。

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