MULTIPLE-CORE PHOTONIC-BANDGAP FIBER WITH COUPLING BETWEEN THE CORES
    11.
    发明申请
    MULTIPLE-CORE PHOTONIC-BANDGAP FIBER WITH COUPLING BETWEEN THE CORES 有权
    多芯光子带光纤与光纤之间的耦合

    公开(公告)号:US20070274652A1

    公开(公告)日:2007-11-29

    申请号:US11681019

    申请日:2007-03-01

    Abstract: An optical coupler includes a first optical port, a second optical port, a third optical port, and a fourth optical port. The optical coupler further includes a photonic-bandgap fiber having a cladding, a first core, and a second core. The cladding includes a material with a first refractive index and regions within the cladding. The regions have a second refractive index lower than the first refractive index. The first core is substantially surrounded by the cladding. The first core is optically coupled to the first optical port and to the second optical port. The second core is substantially surrounded by the cladding. The second core is optically coupled to the third optical port and to the fourth optical port. At least a portion of the first core is generally parallel to and spaced from at least a portion of the second core such that the first core is optically coupled to the second core. The first core, the second core, or both the first core and the second core is hollow.

    Abstract translation: 光耦合器包括第一光口,第二光口,第三光口和第四光口。 光耦合器还包括具有包层,第一芯和第二芯的光子带隙光纤。 包层包括具有第一折射率的材料和包层内的区域。 这些区域具有低于第一折射率的第二折射率。 第一芯基本上被包层包围。 第一核心光耦合到第一光端口和第二光端口。 第二芯基本上被包层包围。 第二核心光耦合到第三光端口和第四光端口。 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,使得第一芯与光学耦合到第二芯。 第一核心,第二核心或第一核心和第二核心都是空心的。

    METHOD OF MEASURING A PHYSICAL FUNCTION USING A COMPOSITE FUNCTION WHICH INCLUDES THE PHYSICAL FUNCTION AND AN ARBITRARY REFERENCE FUNCTION
    12.
    发明申请
    METHOD OF MEASURING A PHYSICAL FUNCTION USING A COMPOSITE FUNCTION WHICH INCLUDES THE PHYSICAL FUNCTION AND AN ARBITRARY REFERENCE FUNCTION 有权
    使用包含物理功能和仲裁参考功能的复合函数来测量物理功能的方法

    公开(公告)号:US20070211253A1

    公开(公告)日:2007-09-13

    申请号:US11747177

    申请日:2007-05-10

    Abstract: 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.

    Abstract translation: 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。

    High-sensitivity fiber-compatible optical acoustic sensor
    13.
    发明申请
    High-sensitivity fiber-compatible optical acoustic sensor 有权
    高灵敏度光纤兼容光学声学传感器

    公开(公告)号:US20070081165A1

    公开(公告)日:2007-04-12

    申请号:US11414506

    申请日:2006-04-28

    CPC classification number: G01H9/00 G01H9/004

    Abstract: An acoustic sensor includes at least one photonic crystal structure having at least one optical resonance with a resonance frequency and a resonance lineshape. The acoustic sensor further includes a housing substantially surrounding the at least one photonic crystal structure and mechanically coupled to the at least one photonic crystal structure. At least one of the resonance frequency and the resonance lineshape is responsive to acoustic waves incident upon the housing.

    Abstract translation: 声传感器包括至少一个光子晶体结构,其具有至少一个具有谐振频率和谐振线形的光学谐振。 声学传感器还包括壳体,其基本上围绕所述至少一个光子晶体结构并且机械耦合到所述至少一个光子晶体结构。 谐振频率和谐振线形形状中的至少一个响应于入射到壳体上的声波。

    PHOTONIC-BANDGAP FIBER WITH A CORE RING
    15.
    发明申请
    PHOTONIC-BANDGAP FIBER WITH A CORE RING 有权
    带核心环的光子带光纤

    公开(公告)号:US20070189686A1

    公开(公告)日:2007-08-16

    申请号:US11737683

    申请日:2007-04-19

    CPC classification number: G02B6/02328 G02B6/02338 G02B6/02347

    Abstract: A photonic-bandgap fiber includes a photonic crystal lattice with a material having a first refractive index and a pattern of regions formed therein. Each of the regions has a second refractive index lower than the first refractive index. The photonic-bandgap fiber further includes a core and a core ring surrounding the core and having an inner perimeter, an outer perimeter, and a thickness between the inner perimeter and the outer perimeter. The thickness is sized to reduce the number of ring surface modes supported by the core ring.

    Abstract translation: 光子带隙光纤包括具有第一折射率的材料和形成在其中的区域的图案的光子晶格。 每个区域具有低于第一折射率的第二折射率。 光子带隙光纤还包括芯部和围绕芯部的芯环,并且具有内周边,外周边和内周边与外周边之间的厚度。 厚度的大小可以减小由芯环支撑的环表面模式的数量。

    Method of measuring a physical function using a composite function which includes the physical function and an arbitrary reference function
    16.
    发明申请
    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:US20060139645A1

    公开(公告)日:2006-06-29

    申请号:US11356275

    申请日:2006-02-16

    Abstract: 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.

    Abstract translation: 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。

    Method and apparatus for modeling the modal properties of optical waveguides

    公开(公告)号:US20060133763A1

    公开(公告)日:2006-06-22

    申请号:US11223216

    申请日:2005-09-09

    Abstract: A method and apparatus models one or more electromagnetic field modes of a waveguide. The method includes sampling a two-dimensional cross-section of the waveguide. The method further includes calculating a first matrix having a plurality of elements and having a first bandwidth using the sampled two-dimensional cross-section of the waveguide. The plurality of elements of the first matrix represents an action of Maxwell's equations on a transverse magnetic field within the waveguide. The method further includes rearranging the plurality of elements of the first matrix to form a second matrix having a second bandwidth smaller than the first bandwidth. The method further includes shifting the second matrix and inverting the shifted second matrix to form a third matrix. The method further includes calculating one or more eigenvalues or eigenvectors of the third matrix corresponding to one or more modes of the waveguide.

    OPTICAL FIBER WITH A CORE RING
    18.
    发明申请
    OPTICAL FIBER WITH A CORE RING 有权
    带光环的光纤

    公开(公告)号:US20080112678A1

    公开(公告)日:2008-05-15

    申请号:US11971181

    申请日:2008-01-08

    CPC classification number: G02B6/02328 G02B6/02338 G02B6/02347

    Abstract: An optical fiber includes a cladding with a material having a first refractive index and a pattern of regions formed therein. Each of the regions has a second refractive index lower than the first refractive index. The optical fiber further includes a core region and a core ring surrounding the core region and having an inner perimeter, an outer perimeter, and a thickness between the inner perimeter and the outer perimeter. The thickness is sized to reduce the number of ring surface modes supported by the core ring.

    Abstract translation: 光纤包括具有第一折射率的材料和其中形成的区域的图案的包层。 每个区域具有低于第一折射率的第二折射率。 光纤还包括芯区域和围绕芯区域的芯环,并且具有内周边,外周边和内周边与外周边之间的厚度。 厚度的大小可以减小由芯环支撑的环表面模式的数量。

    Apparatus and method for optical coherence tomography
    20.
    发明申请
    Apparatus and method for optical coherence tomography 有权
    光学相干断层扫描仪的设备和方法

    公开(公告)号:US20070050162A1

    公开(公告)日:2007-03-01

    申请号:US11384170

    申请日:2006-03-17

    Abstract: A method determines the complex scattering function of a portion of a sample under analysis. The method includes providing a magnitude spectrum of a complex spatial Fourier transform of a complex intermediate function. The complex intermediate function is dependent on the complex scattering function of the portion of the sample under analysis. The magnitude spectrum is obtained from power spectrum data of frequency-domain optical coherence tomography of the portion of the sample under analysis. The method further includes providing an estimated phase term of the complex spatial Fourier transform. The method further includes multiplying the magnitude spectrum and the estimated phase term together to generate an estimated complex spatial Fourier transform. The method further includes calculating an inverse Fourier transform of the estimated complex spatial Fourier transform. The inverse Fourier transform of the estimated complex spatial Fourier transform is a spatial function. The method further includes calculating an estimated intermediate function by applying at least one constraint to the inverse Fourier transform of the estimated complex spatial Fourier transform.

    Abstract translation: 一种方法确定了一部分样品在分析中的复散射函数。 该方法包括提供复杂中间函数的复数空间傅里叶变换的幅度谱。 复合中间函数取决于分析样品部分的复散射函数。 幅度谱是从分析样品部分的频域光学相干断层扫描的功率谱数据获得的。 该方法还包括提供复数空间傅里叶变换的估计相位项。 该方法还包括将幅度谱和估计的相位项相乘以产生估计的复数空间傅里叶变换。 该方法还包括计算估计的复数空间傅立叶变换的逆傅里叶变换。 估计的复数空间傅立叶变换的傅立叶逆变换是空间函数。 该方法还包括通过对估计的复数空间傅里叶变换的傅立叶逆变换应用至少一个约束来计算估计的中间函数。

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