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    • 2. 发明专利
    • Refraction index-matched grating inscription
    • 折射指数匹配描述
    • JP2014194537A
    • 2014-10-09
    • JP2014032183
    • 2014-02-21
    • Ofs Fitel Llcオーエフエス ファイテル,エルエルシー
    • KENNETH S FEDERWESTBROOK PAUL S
    • G02B6/02
    • G03F1/00G02B6/02138G03F7/0005
    • PROBLEM TO BE SOLVED: To provide systems and methods for mitigating lensing and scattering when an optical fiber is being inscribed with a grating.SOLUTION: Grating inscription systems and methods mitigate a lensing phenomenon by surrounding an optical fiber 14 with a refractive index-matching material 20c that is held in a vessel 82 together with a sealed phase mask 81a. The sealed phase mask 81a allows the optical fiber 14 to be in contact with the liquid refractive index-matching material 20c without having the liquid refractive index-matching material 20c seep into grooves (teeth) 87 of the sealed phase mask 81a. Thus, the sealed phase mask 81a may be immersed in the liquid refractive index-matching material 20c without adversely affecting the function of the phase mask 81a.
    • 要解决的问题:提供当光纤正刻有光栅时减轻透镜和散射的系统和方法。解决方案:光栅铭文系统和方法通过用折射率匹配材料围绕光纤14来减轻透镜现象 20c与密封相位掩模81a一起保持在容器82中。 密封相位掩模81a允许光纤14与液体折射率匹配材料20c接触,而不使液体折射率匹配材料20c渗入密封相位掩模81a的凹槽(齿)87中。 因此,密封相位掩模81a可以浸没在液体折射率匹配材料20c中,而不会不利地影响相位掩模81a的功能。
    • 4. 发明专利
    • Self calibration procedure for polarimeter
    • 自动校准程序
    • JP2012018165A
    • 2012-01-26
    • JP2011151357
    • 2011-07-08
    • Ofs Fitel Llcオーエフエス ファイテル,エルエルシー
    • VITALY MIKHAILOVWESTBROOK PAUL S
    • G01J4/04
    • G01J4/00G01J4/04
    • PROBLEM TO BE SOLVED: To provide a self-calibration procedure for polarimeter, eliminating the need for input signals to be used as known.SOLUTION: Self-calibration data is taken by moving a polarization controller between several random and unknown states of polarization (SOPs) and recording the detector output values (D, ..., D) for each state of polarization. These values are then used to create an "approximate" calibration matrix. In one exemplary embodiment, the SOP of the incoming signal is adjusted three times (by adjusting a separate polarization controller element, for example), to create a set of four detector output values for each of the four polarization states of the incoming signal - an initial calibration matrix. The first row of this initial calibration matrix is then adjusted to fit the power measurements using a least squares fit. In the third and final step, the remaining elements of the calibration matrix are adjusted to satisfy a given constraint (for example, DOP=100% for all SOPs).
    • 要解决的问题:为了提供旋光仪的自校准程序,消除了对已知输入信号的需要。

      解决方案:通过在多个随机和未知极化状态(SOP)之间移动偏振控制器并记录检测器输出值(D 0 )来进行自校准数据。 ..,D 3 )。 然后将这些值用于创建“近似”校准矩阵。 在一个示例性实施例中,输入信号的SOP被调整三次(例如通过调整单独的偏振控制器元件),以为输入信号的四个极化状态中的每一个产生一组四个检测器输出值 - 初始校准矩阵。 然后调整该初始校准矩阵的第一行以使用最小二乘拟合拟合功率测量。 在第三和最后一步中,调整校准矩阵的剩余元素以满足给定的约束(例如,对于所有SOP,DOP = 100%)。 版权所有(C)2012,JPO&INPIT

    • 6. 发明专利
    • Nonlinear optical system and technique
    • 非线性光学系统和技术
    • JP2011118385A
    • 2011-06-16
    • JP2010262163
    • 2010-11-25
    • Ofs Fitel Llcオーエフエス ファイテル,エルエルシー
    • NICHOLSON JEFFREY WRAMACHANDRAN SIDDHARTH
    • G02B21/36
    • PROBLEM TO BE SOLVED: To provide a nonlinear microscope system having a method for multidimensionally increasing signal resolution.
      SOLUTION: A method and system using a nonlinear optical system are explained. The nonlinear optical system includes a laser and an optical transmission system including a single mode fiber, a mode converter, and a higher order mode fiber and the optical transmission system receiving light from a light source and supplying a structured free space beam includes an embedded gaussian beam. The optical transmission system functions to hit the light to one region of a sample and produce a nonlinear response in a space region smaller than a space region related to a gaussian beam having a width corresponding to the width of the embedded gaussian beam. Another embodiment is described wherein the optical transmission system hits the light to one region of the sample, to produce nonlinear emission of radiation. Another embodiment of the embodiment includes an imaging assembly detecting the nonlinear emission and producing the microscopic image of the sample by using a signal derived from the detected emission.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种具有用于多维增加信号分辨率的方法的非线性显微镜系统。 解决方案:解释了使用非线性光学系统的方法和系统。 非线性光学系统包括激光器和包括单模光纤,模式转换器和高阶光纤的光传输系统,并且从光源接收光并提供结构化自由空间光束的光传输系统包括嵌入的高斯 光束。 光传输系统的作用是将光照射到样品的一个区域,并且在小于与具有对应于嵌入的高斯光束的宽度的宽度的高斯光束相关的空间区域的空间区域中产生非线性响应。 描述了另一个实施例,其中光传输系统将光照射到样品的一个区域,以产生辐射的非线性发射。 该实施例的另一实施例包括成像组件,其通过使用从检测到的发射导出的信号来检测非线性发射并产生样品的微观图像。 版权所有(C)2011,JPO&INPIT
    • 7. 发明专利
    • Compression of optical continuum generated by utilizing higher-order-mode fiber
    • 利用高阶模式光纤产生的光连续的压缩
    • JP2011053688A
    • 2011-03-17
    • JP2010193107
    • 2010-08-31
    • Ofs Fitel Llcオーエフエス ファイテル,エルエルシー
    • NICHOLSON JEFFREY WRAMACHANDRAN SIDDHARTH
    • G02F1/365G02B6/02G02B6/14
    • H01S3/0057G02B6/02023G02B6/14G02B6/29376G02F1/353G02F2001/3528H01S3/005H01S3/0092
    • PROBLEM TO BE SOLVED: To provide an all-fiber arrangement pulse compression technique which spectrally slices optical continuum emitted from a single optical source of high power output and low noise and compresses a plurality of generated different ultra short wavelength signals to fs levels. SOLUTION: A higher-order mode (HOM) fiber which exhibits a prescribed dispersion on at least a part of a prescribed wavelength range is disposed and the dispersion of the HOM fiber is selected so as to compensate the dispersion introduced by an optical continuum signal source. An input mode converter is used so as to convert the optical continuum from a fundamental mode related to the conventional continuum optical source into a higher-order mode supported by the HOM fiber used for performing pulse compression. A bandpass filter is used to limit the bandwidth of the continuum signal to the bandwidth associated with both of the efficient conversion range of the mode converter and desired dispersion characteristic of the HOM fiber. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供全光纤布置脉冲压缩技术,其对从高功率输出和低噪声的单个光源发射的光学连续谱进行光谱切片,并将多个生成的不同的超短波长信号压缩到fs水平 。

      解决方案:设置在规定波长范围的至少一部分表现出规定色散的高阶模式(HOM)光纤,并选择HOM光纤的色散以补偿由光学器件引入的色散 连续信号源。 使用输入模式转换器,以将从常规连续光源相关的基本模式的光学连续体转换为由用于执行脉冲压缩的HOM光纤支持的高阶模式。 带通滤波器用于将连续信号的带宽限制为与模式转换器的有效转换范围和HOM光纤的期望色散特性两者相关联的带宽。 版权所有(C)2011,JPO&INPIT

    • 8. 发明专利
    • Bend insensitive fiber optic drop cable for in-home use
    • 弯曲隐形纤维光纤电缆用于家庭使用
    • JP2009288787A
    • 2009-12-10
    • JP2009125916
    • 2009-05-26
    • Ofs Fitel Llcオーエフエス ファイテル,エルエルシー
    • KONSTADINIDIS KARIOFILISMAZZARESE DAVID JNORRIS RICHARDWEIMANN PETER A
    • G02B6/44G02B6/036
    • G02B6/4402G02B6/03666G02B6/443
    • PROBLEM TO BE SOLVED: To provide an optical drop cable for in-home use that has bend loss smaller than that of a standard singlemode fiber, and to provide a method of manufacturing the same. SOLUTION: The bend insensitive fiber optic cable includes a singlemode fiber, a buffer layer surrounding the fiber wherein the thickest component of the buffer layer has an elastic modulus greater than 515 MPa (75,000 psi), and a jacket surrounding the buffer layer, wherein the jacket has a thickness of at least 1.2 mm. In one preferred embodiment, the buffer layer includes a nylon 12 resin with a nominal elastic modulus of approximately 1,503 MPa (approximately 218,000 psi). In this embodiment, an inner thin component of the buffer layer is made of an ethylene/ethyl acrylate resin so as to facilitate stripping the buffer layer away from the fiber. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种弯曲损耗小于标准单模光纤的户内使用的光引入电缆,并提供其制造方法。 解决方案:弯曲不敏感光纤电缆包括单模光纤,围绕光纤的缓冲层,其中缓冲层的最厚部分的弹性模量大于515MPa(75,000psi),围绕缓冲层的护套 ,其中所述护套具有至少1.2mm的厚度。 在一个优选实施例中,缓冲层包括标称弹性模量约为1503MPa(约218,000psi)的尼龙12树脂。 在本实施例中,缓冲层的内部薄部分由乙烯/丙烯酸乙酯树脂制成,以便缓冲层从光纤上剥离。 版权所有(C)2010,JPO&INPIT