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1.发明授权Narrow bandwidth reflectors for reducing stimulated Brillouin scattering in optical cavities 有权用于减少光腔中受激布里渊散射的窄带宽反射器公开(公告)号：US09252559B2
公开(公告)日：2016-02-02
申请号：US13545497
申请日：2012-07-10
CPC分类号： H01S3/10023 , G01C19/721 , G01C19/727 , G02B6/00 , G02B6/02195 , G02B6/29316 , G02B6/29322 , G02B6/29356
摘要： An optical-fiber filter system to narrow a linewidth and to reduce noise fluctuations of an optical beam is provided. The optical-fiber filter system includes an optical fiber having a first end-face and an opposing second end-face, the first end-face and the second end-face setting a fiber length; a fiber Bragg grating having a first reflectivity positioned at the first end-face; and a reflector having a second reflectivity positioned at the second end-face. When the optical beam at a first frequency is coupled from a laser into one of the first end-face or the second end-face, a resonant cavity is established at the first frequency between the fiber Bragg grating and the reflector while Brillouin scattered light shifted from the first frequency within the optical fiber is transmitted through the fiber Bragg grating.
摘要翻译： 提供了一种用于缩小线宽并减少光束的噪声波动的光纤滤波器系统。 光纤滤波器系统包括具有第一端面和相对的第二端面的光纤，第一端面和第二端面设置光纤长度; 光纤布拉格光栅，其具有位于所述第一端面处的第一反射率; 以及具有位于第二端面处的第二反射率的反射器。 当第一频率的光束从激光器耦合到第一端面或第二端面中的一个时，在光纤布拉格光栅和反射器之间的第一频率处建立谐振腔，而布里渊散射光偏移 从光纤内的第一频率通过光纤布拉格光栅传输。
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2.发明申请NARROW BANDWIDTH REFLECTORS FOR REDUCING STIMULATED BRILLOUIN SCATTERING IN OPTICAL CAVITIES 有权用于减少光学照明中刺激性白炽灯散射的窄带反射镜公开(公告)号：US20140204387A1
公开(公告)日：2014-07-24
申请号：US13545497
申请日：2012-07-10
CPC分类号： H01S3/10023 , G01C19/721 , G01C19/727 , G02B6/00 , G02B6/02195 , G02B6/29316 , G02B6/29322 , G02B6/29356
摘要： An optical-fiber filter system to narrow a linewidth and to reduce noise fluctuations of an optical beam is provided. The optical-fiber filter system includes an optical fiber having a first end-face and an opposing second end-face, the first end-face and the second end-face setting a fiber length; a fiber Bragg grating having a first reflectivity positioned at the first end-face; and a reflector having a second reflectivity positioned at the second end-face. When the optical beam at a first frequency is coupled from a laser into one of the first end-face or the second end-face, a resonant cavity is established at the first frequency between the fiber Bragg grating and the reflector while Brillouin scattered light shifted from the first frequency within the optical fiber is transmitted through the fiber Bragg grating.
摘要翻译： 提供了一种用于缩小线宽并减少光束的噪声波动的光纤滤波器系统。 光纤滤波器系统包括具有第一端面和相对的第二端面的光纤，第一端面和第二端面设置光纤长度; 光纤布拉格光栅，其具有位于所述第一端面处的第一反射率; 以及具有位于第二端面处的第二反射率的反射器。 当第一频率的光束从激光器耦合到第一端面或第二端面中的一个时，在光纤布拉格光栅和反射器之间的第一频率处建立谐振腔，而布里渊散射光偏移 从光纤内的第一频率通过光纤布拉格光栅传输。
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公开(公告)号：US20080116361A1
公开(公告)日：2008-05-22
申请号：US11600386
申请日：2006-11-16
IPC分类号： G01N21/75
CPC分类号： G01N21/7746 , G01D5/35345 , G01N2021/7716 , G01N2201/0612 , G01N2201/088 , G02B6/2934
摘要： Apparatus and method are provided for chemical and biological agent sensing. The sensing apparatus includes a resonator having a resonance frequency and one or more optical fiber coils. The optical fiber coil has a permeable cladding and an indicator embedded in the cladding that reacts to an agent (e.g., a chemical or biological substance). The resonator circulates light through the coil and produces a resonance shape centered at the resonance frequency and measured via the input light. A predetermined change in the resonance shape indicates a presence of the agent in the environment.
摘要翻译： 提供了用于化学和生物试剂感测的装置和方法。 感测装置包括具有共振频率的谐振器和一个或多个光纤线圈。 光纤线圈具有可渗透的包层和嵌入包层中的与试剂（例如化学或生物物质）反应的指示剂。 谐振器通过线圈循环光，并产生以谐振频率为中心的谐振形状，并通过输入光测量。 共振形状的预定变化表示在环境中存在该试剂。
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4.发明授权
公开(公告)号：US5588085A
公开(公告)日：1996-12-24
申请号：US633323
申请日：1996-04-17
CPC分类号： G02B6/122 , C03C23/002 , G02B2006/12195
摘要： A method of making a silicate optical waveguide structure for transforming an optical beam of a first modal spot size to a beam of a second modal spot size includes the step of selecting an irradiation energy which is at least partially absorbed by the cladding of the structure. A variable dosage of radiation is then provided along the length of the structure. The radiation has an energy equal to the selected irradiation energy so that a refractive index change of the cladding is greater than a refractive index change of the core.
摘要翻译： 制造用于将第一模式光斑尺寸的光束变换为第二模式光点尺寸的光束的硅酸盐光波导结构的方法包括选择至少部分地被结构的包层吸收的照射能量的步骤。 然后沿着结构的长度提供可变剂量的辐射。 辐射具有等于所选择的照射能量的能量，使得包层的折射率变化大于芯的折射率变化。
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公开(公告)号：US5796906A
公开(公告)日：1998-08-18
申请号：US704341
申请日：1996-08-27
CPC分类号： G02B6/124 , G02B6/12007 , G02B2006/12107 , G02B2006/12109
摘要： An optical planar waveguide notch filter employs a waveguide with first, second and third regions. The first and third regions have structures for propagating an optical signal in a first transmission mode. The second region is located between the first and third regions and has a structure in which an optical signal propagates in the first transmission mode as well as at least one other higher order transmission mode. The structure of the second region further couples a particular wavelength band of the signal propagating in the first transmission mode to at least one of the other transmission modes. This coupling causes an attenuation of energy of such bandwidth in the signal propagating in the first transmission mode. As a result, the signal propagating from the second region to the third region in the first transmission mode is a notch filtered signal possessing an attenuation at the particular wavelength band.
摘要翻译： 光学平面波导陷波滤波器采用具有第一，第二和第三区域的波导。 第一和第三区域具有用于在第一传输模式下传播光信号的结构。 第二区域位于第一和第三区域之间，并且具有其中光信号以第一传输模式以及至少一个其它更高阶传输模式传播的结构。 第二区域的结构还将在第一传输模式中传播的信号的特定波长带耦合到其它传输模式中的至少一个。 该耦合导致在第一传输模式中传播的信号中这种带宽的能量衰减。 结果，在第一传输模式中从第二区域传播到第三区域的信号是在特定波段具有衰减的陷波滤波信号。
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公开(公告)号：US5768457A
公开(公告)日：1998-06-16
申请号：US565527
申请日：1995-11-30
IPC分类号： G02B6/26
CPC分类号： G02B6/30 , G02B6/12004
摘要： In many assembly applications of optical arrays, a bridging member is bonded to the arrays to hold them securely. It has been found that a pad made of layers of glass and silicon provides an efficient heat transmitting structure for this purpose. Because glass is absorbent to laser radiation at 10.6 .mu.m, it absorbs all the incident laser radiation, and imparts the heat generated to the silicon, which transmits it uniformly over its entire surface. The heat can then be used to melt solder or to heat-cure an adhesive, thereby affecting a robust mechanical bond in an efficient and rapid manner.
摘要翻译： 在光学阵列的许多组装应用中，将桥接构件结合到阵列以牢固地保持它们。 已经发现，为了这个目的，由玻璃和硅层制成的垫片提供了有效的传热结构。 因为玻璃吸收到10.6μm的激光辐射，它吸收所有入射的激光辐射，并且将产生的热量传递给硅，其在其整个表面上均匀地传播。 然后可以使用热量来熔化焊料或热固化粘合剂，从而以有效和快速的方式影响牢固的机械粘合。
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公开(公告)号：US5980120A
公开(公告)日：1999-11-09
申请号：US936416
申请日：1997-09-25
申请人： Chellappan Narayanan
发明人： Chellappan Narayanan
CPC分类号： G01M11/333 , G02B6/3807 , G02B6/3839 , G02B6/3636 , G02B6/3652
摘要： Disclosed is an apparatus for testing an array of optical fibers. According to the invention, modulated light is projected through individual fibers of a fiber array onto a photo-sensitive position sensor. The photo-sensitive sensor will provide position information relative to the position of the light projected upon its surface to a system computer. The positions of the optical fibers within the array relative to each other may thus be found. A loop is introduced into the optical fibers to lower the wavelength at which the fiber is multi-moded. The actual positions of the optical fibers are compared to desired positions and the fiber array is accepted or rejected based on whether it meets predetermined limits.
摘要翻译： 公开了一种用于测试光纤阵列的装置。 根据本发明，调制光通过光纤阵列的各个纤维投影到感光位置传感器上。 光敏传感器将提供相对于在其表面上投射到系统计算机的光的位置的位置信息。 因此可以发现阵列内的光纤相对于彼此的位置。 将光纤引入到光纤中以降低光纤多模的波长。 将光纤的实际位置与期望的位置进行比较，并且基于其是否满足预定限度来接受或拒绝光纤阵列。
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8.发明授权Optical device having a temperature independent spectral response using nonplanar geometric distortion of a substrate 失效具有使用基板的非平面几何变形的温度独立光谱响应的光学装置
公开(公告)号：US5978539A
公开(公告)日：1999-11-02
申请号：US943747
申请日：1997-10-03
申请人： Scott T. Davies , Daren Li , Yuan P. Li , Chellappan Narayanan , Kevin G. Sullivan , Jianluo Zhang
发明人： Scott T. Davies , Daren Li , Yuan P. Li , Chellappan Narayanan , Kevin G. Sullivan , Jianluo Zhang
CPC分类号： G02B6/1203 , G02B6/12 , G02B6/12007 , G02B6/122
摘要： An optical interconnection device has a passive control mechanism for substantially eliminating thermal effects on optical properties of the apparatus Specifically, the interconnection apparatus includes a control material coupled to an optical circuit substrate, wherein the control material has a thermal expansion coefficient that is different than a substrate thermal expansion coefficient. In response to an increase or decrease an ambient temperature, the control material thermally expands or contracts at a different rate than the substrate to create a non-planar substrate distortion transmitted to the core portion, thereby creating a temperature independent optical path length within the optical core portion.
摘要翻译： 光互连装置具有用于基本上消除对该装置的光学特性的热影响的被动控制机构。具体地，该互连装置包括耦合到光电路基板的控制材料，其中控制材料的热膨胀系数不同于 基板热膨胀系数。 响应于增加或减少环境温度，控制材料以与衬底不同的速率热膨胀或收缩，以产生传输到芯部的非平面衬底失真，从而在光学器件内产生温度无关的光程长度 核心部分。
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公开(公告)号：US5768452A
公开(公告)日：1998-06-16
申请号：US633610
申请日：1996-04-17
CPC分类号： G02B6/125 , G02B6/13 , G02B2006/12147 , G02B2006/12169
摘要： A method is provided of trimming the optical coupling ratio of an optical coupler to a prescribed value. The optical coupler is formed from a plurality of waveguides which each include a core and cladding. In accordance with the method, an irradiation energy is selected that is absorbed by portions of the waveguides located in a coupling region. A dosage of radiation is applied to the waveguide portions at least sufficient to adjust the optical coupling ratio to the prescribed value. The radiation, which may be absorbed by the cladding and/or the core of the waveguides, causes a change in the refractive index difference between the core and cladding of the waveguides. This change in the refractive index difference will result in a change in the optical coupling ratio of the device.
摘要翻译： 提供了一种将光耦合器的光耦合比修剪到规定值的方法。 光耦合器由多个波导形成，每个波导包括芯和包层。 根据该方法，选择被位于耦合区域中的波导的部分吸收的照射能量。 对波导部分施加的辐射剂量至少足以将光耦合比调整到规定值。 可以由波导的包层和/或芯吸收的辐射导致波导的芯和包层之间的折射率差的变化。 折射率差的这种变化将导致器件的光耦合率的变化。
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10.发明申请SYSTEMS AND METHODS FOR EFFECTIVE RELATIVE INTENSITY NOISE (RIN) SUBTRACTION IN DEPOLARIZED GYROS 审中-公开有效的相对强度噪声（RIN）在不确定的GYROS中的分配的系统和方法公开(公告)号：US20100284018A1
公开(公告)日：2010-11-11
申请号：US12463887
申请日：2009-05-11
IPC分类号： G01C19/72
CPC分类号： G01C19/721
摘要： Effective relative intensity noise (RIN) subtraction systems and methods for improving ARW performance of a depolarized gyros. This invention taps the RIN detector light in the sensing loop, after the light transmits through the depolarizer and the coil but before it combines with the counter propagating lightwave. The tapped RIN lightwaves are polarized with pass-axis orientated in the same direction as that of the IOC, so that the RIN detector receives lightwaves with spectrum substantially identical to that of the rate detector, leading to more effective RIN subtraction.
摘要翻译： 有效相对强度噪声（RIN）减法系统和改善去极化陀螺仪的ARW性能的方法。 本发明在光透过去偏振器和线圈之后，然后将其与反向传播的光波组合之前，将感测环中的RIN检测器光抽头。 敲击的RIN光波被以与IOC相同的方向定向的通轴进行极化，使得RIN检测器接收光谱，其光谱与速率检测器的光谱基本相同，导致更有效的RIN减法。
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