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81. 发明授权

US4793680A Induced grating devices and method of making same 失效
标题翻译：感应光栅装置及其制作方法
公开(公告)号：US4793680A
公开(公告)日：1988-12-27
申请号：US52284
申请日：1987-05-21
申请人： Kevin C. Byron
发明人： Kevin C. Byron
IPC分类号： G02B5/18 , G02B6/34
CPC分类号： G02B6/02066 , G02B5/1857 , G02B6/02123 , G02B6/29317 , G02B6/34 , Y10S359/90
摘要： It has been found that when a pulsed high-power laser beam is incident on the surfaces of a wide variety of materials, ripples are produced on such surface. This is due to interference between scattered waves and the incident beam producing intensity fringes, and hence localized heating. The dimensions of the ripples are dependent on the wavelngth of the incident light. This is used to produce permanent (after cooling) gratings on the outer surface of an optical waveguide, for example an optical fibre, on to which a laser beam is focussed by a lens system. Hence a grating whose length is a few hundreds of micrometers is produced. If the cladding is removed this effect of ripple generation is enhanced.
摘要翻译：已经发现，当脉冲大功率激光束入射到各种材料的表面上时，在这种表面上产生波纹。这是由于散射波和入射光束之间的干涉产生强度条纹，因此是局部加热。波纹的尺寸取决于入射光的波动。这用于在光波导的外表面（例如光纤）上产生永久的（后冷却）光栅，激光束被透镜系统聚焦。因此产生长度为几百微米的光栅。如果去除了包层，则纹波产生的效果增强。

82. 发明授权

US4725137A Process and apparatus for measuring an evanescent field in an optical fiber 失效
标题翻译：用于测量光纤中的消逝场的方法和装置
公开(公告)号：US4725137A
公开(公告)日：1988-02-16
申请号：US546611
申请日：1983-10-28
申请人： Donald C. Schmadel, Jr.
发明人： Donald C. Schmadel, Jr.
IPC分类号： G01N21/55 , G02B6/28 , G02B6/34 , G02B6/36 , G01N21/84
CPC分类号： G02B6/02133 , G01N21/552 , G02B6/02123 , G02B6/2821
摘要： An apparatus and process are described which can measure the strength of an evanescent field at the surface of an optical fiber. Light is injected into an end of the optical fiber while the portion of the fiber to be tested is contacted with a material having a higher index of refraction than the optical fiber. The amount of light lost, i.e., coupled out of the fiber, is a function of the evanescent field strength at the cladding surface of the optical fiber. This loss can be correlated with optical fibers which have thicker and thinner claddings to determine the thickness of the cladding and/or the extent of removal of the cladding by, for example, etching.
摘要翻译：描述了可以测量光纤表面处的消逝场强度的装置和过程。光被注入光纤的一端，而待测试的光纤的部分与具有比光纤更高的折射率的材料接触。光纤损耗的量，即从光纤耦合出来，是光纤包层表面处的消逝场强的函数。这种损耗可以与具有较厚和较薄的包层的光纤相关联，以通过例如蚀刻来确定包层的厚度和/或去除包层的程度。

83. 发明授权

US3689264A Method for increasing index of refraction in transparent bodies and its application to light guides and the like 失效
$Method for increasing index of refraction in transparent bodies and its application to light guides and the like$
标题翻译：在透明体中增加折射率的方法及其应用于光导和类似物
公开(公告)号：US3689264A
公开(公告)日：1972-09-05
申请号：US3689264D
申请日：1970-03-19
申请人： BELL TELEPHONE LABOR INC
发明人： CHANDROSS EDWIN ARTHUR , FORK RICHARD LYNN , KAMINOW IVAN PAUL , TOMLINSON WALTER JOHN
IPC分类号： G02B6/122 , G02B6/13 , G02B6/138 , G02B6/28 , G02B6/30 , G03F7/00 , G03F7/038 , G03C5/00 , G03C1/68
CPC分类号： G02B6/1221 , G02B6/02114 , G02B6/02123 , G02B6/13 , G02B6/138 , G02B6/2821 , G02B6/30 , G03F7/001 , G03F7/038
摘要： THE ARE DISCLOSED A VARIETY OF METHODS FOR PRODUCING LIGHT GUIDES IN SUITABLY SENSITIZED SAMPLES UPON IRRADIATION WITH FOCUSED ULTRAVIOLET LIGHT AND SUBSEQUENT AGING. THESE METHODS ARE BASED UPON THE DISCOVERY THAT ULTRAVIOLET RADIATION FROM A MERCURY ARC AT 3650 A. OR FROM AN ULTRAVIOLET HELIUM-CADMIUM ION LASER AT 3250A. PRODUCES READILLY OBSERVABLE IRREVERSIBLE INDEX OF REFRACTION CHANGESIN POLY(METHYL METHACRYLATE) POLYMERIZED AT LOW TEMPERATURES OF AROUND 40-50 DEGREES CENTIGRADE. UPON SUBSEQUENT AGING, THE AMOUNT AND GRADIENT OF THE INDEX CHANGE SUBSTANTIALLY INCREASE.

84. 发明公开

US20240142695A1 Evacuated Gratings and Methods of Manufacturing 审中-公开
公开(公告)号：US20240142695A1
公开(公告)日：2024-05-02
申请号：US18407259
申请日：2024-01-08
申请人： DigiLens Inc.
发明人： Jonathan David Waldern , Alastair John Grant , Milan Momcilo Popovich , Shibu Abraham , Baeddan George Hill , Tsung-Jui Ho
IPC分类号： G02B6/02 , G02B5/18 , G02B6/12 , G02B6/293 , G02F1/13
CPC分类号： G02B6/02076 , G02B5/1857 , G02B6/12023 , G02B6/29302 , G02F1/1326 , G02B6/02066 , G02B6/02123
摘要： Improvements to gratings for use in waveguides and methods of producing them are described herein. Deep surface relief gratings (SRGs) may offer many advantages over conventional SRGs and Bragg gratings, an important one being a higher S-diffraction efficiency. In one embodiment, deep SRGs can be implemented as polymer surface relief gratings or evacuated Bragg gratings (EBGs). EBGs can be formed by first recording a holographic polymer dispersed liquid crystal (HPDLC) grating. Removing the liquid crystal from the cured grating provides a polymer surface relief grating. Polymer surface relief gratings have many applications including for use in waveguide-based displays.

85. 发明授权

US10845533B2 Writing of high mechanical strength fiber bragg gratings using ultrafast pulses and a phase mask 有权
公开(公告)号：US10845533B2
公开(公告)日：2020-11-24
申请号：US16171617
申请日：2018-10-26
申请人： UNIVERSITÉ LAVAL
发明人： Martin Bernier , Réal Vallée , François Trépanier , Julien Carrier
IPC分类号： G02B6/02 , G02B26/08 , G02B5/18
CPC分类号： G02B6/02138 , G02B6/02123 , G02B26/0875 , G02B5/1857 , G02B6/02033 , G02B6/02395 , G02B2006/02161
摘要： An optical fiber having a Bragg grating along a non-photosensitized grating region thereof and a pristine polymer coating around the grating region with the Bragg grating having been written through the polymer coating has a mechanical resistance that is greater than 20% of the mechanical resistance of an identical grating-free optical fiber.

86. 发明授权

US09946017B2 Arrays of integrated analytical devices and methods for production 有权
公开(公告)号：US09946017B2
公开(公告)日：2018-04-17
申请号：US15600668
申请日：2017-05-19
申请人： Pacific Biosciences of California, Inc.
发明人： Ravi Saxena , Michael Tzu Ru , Takashi Whitney Orimoto , Annette Grot , Mathieu Foquet , Hou-Pu Chou
IPC分类号： G02B6/12 , G01N21/64 , B29D17/00 , C12Q1/68 , G02B6/02 , G02B6/124 , B29D11/00 , G02B5/18 , G02B6/136 , B29L11/00
CPC分类号： G02B6/12004 , B29D11/0073 , B29D17/007 , B29L2011/005 , B29L2011/0066 , B29L2011/0075 , C12Q1/6869 , G01N21/6454 , G01N21/648 , G01N2021/6478 , G01N2201/0873 , G02B5/189 , G02B6/02123 , G02B6/124 , G02B6/136 , G02B2006/12038 , G02B2006/12109
摘要： Arrays of integrated analytical devices and their methods for production are provided. The arrays are useful in the analysis of highly multiplexed optical reactions in large numbers at high densities, including biochemical reactions, such as nucleic acid sequencing reactions. The integrated devices allow the highly sensitive discrimination of optical signals using features such as spectra, amplitude, and time resolution, or combinations thereof. The arrays and methods of the invention make use of silicon chip fabrication and manufacturing techniques developed for the electronics industry and highly suited for miniaturization and high throughput.

87. 发明申请

US20180011249A1 FIBER-TO-WAVEGUIDE COUPLERS WITH ULTRA HIGH COUPLING EFFICIENCY AND INTEGRATED CHIP WAVEGUIDES INCLUDING THE SAME 审中-公开
公开(公告)号：US20180011249A1
公开(公告)日：2018-01-11
申请号：US15646814
申请日：2017-07-11
申请人： University of Maryland
发明人： Tiecheng Zhu , Mario Dagenais , Sylvain Veilleux
IPC分类号： G02B6/12 , G02B6/02 , G02B6/30 , G02B6/36
CPC分类号： G02B6/12004 , G02B6/02076 , G02B6/02085 , G02B6/02123 , G02B6/124 , G02B6/305 , G02B6/36 , G02B2006/02166 , G02B2006/12107
摘要： An easy-to-fabricate and highly efficient single-mode optical fiber-to-single-mode optical waveguide coupler having relatively large horizontal and vertical alignment tolerances between the fiber and the waveguide coupler. The waveguide coupler also features ease of end-facet cleaving. The waveguide coupler can be used in ultra-broadband high coupling efficiency applications or other suitable applications. Single-mode on-chip waveguides incorporating such coupler(s) are also provided, as are methods of manufacturing the waveguide coupler and on-chip waveguide.

88. 发明申请

US20160123715A1 AN OVERLAPPED CHIRPED FIBER BRAGG GRATING SENSING FIBER AND METHODS AND APPARATUS FOR PARAMETER MEASUREMENT USING SAME 有权
标题翻译：一种重叠的纤维光纤光栅传感光纤和使用相同参数测量的方法和装置
公开(公告)号：US20160123715A1
公开(公告)日：2016-05-05
申请号：US14897973
申请日：2014-06-10
申请人： INTUITIVE SURGICAL OPERATIONS, INC.
发明人： Mark E. FROGGATT , Justin W. KLEIN
IPC分类号： G01B9/02 , G02B6/02 , G01M11/00
CPC分类号： G01B9/02002 , G01B9/02004 , G01B9/02044 , G01B11/161 , G01B11/18 , G01D5/35316 , G01M11/3172 , G02B6/02042 , G02B6/02085 , G02B6/02114 , G02B6/02123 , G02B2006/02157
摘要： An optical sensor includes an optical fiber inscribed with a repeated refraction pattern such that light scattered from a location on the optical fiber is scattered at multiple frequencies in a range of frequencies. The inscribed patterns overlap at every measurement point along at least a portion of the length of the sensor. An optical sensing system including control circuitry coupled to the optical fiber detects measurement scatter data from the optical fiber over the range of frequencies, determines a change in the detected measurement scatter data over the range of frequencies, and extracts a parameter describing a state of the optical fiber from the determined change in the detected measurement scatter data. The sensor may be made by inscribing a first light refracting pattern on the optical fiber at every measurement point along at least a portion of the length of the sensor and inscribing a second light refracting pattern on the optical fiber that overlaps the first inscribed light refracting pattern at every measurement point along at least that portion of the length of the sensor.
摘要翻译：光学传感器包括内接有重复折射图案的光纤，使得从光纤上的位置散射的光在频率范围内以多个频率散射。刻印图案沿着传感器长度的至少一部分在每个测量点处重叠。包括耦合到光纤的控制电路的光学感测系统在频率范围内检测来自光纤的测量散射数据，确定在频率范围上检测到的测量散射数据的变化，并且提取描述光纤从检测到的测量散射数据中确定的变化。传感器可以通过沿着传感器的长度的至少一部分的每个测量点在光纤上刻上第一光折射图案并且在与第一内接光折射图案重叠的光纤上刻划第二光折射图案在每个测量点沿传感器长度的至少那部分。

89. 发明申请

US20150338286A1 GRATING-BASED SENSOR 有权
标题翻译：基于磨砂的传感器
公开(公告)号：US20150338286A1
公开(公告)日：2015-11-26
申请号：US14381638
申请日：2013-03-07
申请人： OFS Fitel, LLC
发明人： Matthew J Andrejco , David J Kudelko , Yaowen Li , Man F Yan
IPC分类号： G01K11/32 , G02B6/02 , G02B6/38 , G01L1/24
CPC分类号： G01K11/3206 , G01L1/246 , G02B6/02042 , G02B6/02061 , G02B6/02076 , G02B6/021 , G02B6/02123 , G02B6/2835 , G02B6/3846 , G02B2006/2839
摘要： An optical fiber-based sensor is described that is suitable for operation in a gas-rich environment. The sensor comprises a chamber into which are mounted one or more segments of optical fiber, into which are inscribed a plurality of sensor gratings. Each of the plurality of sensor gratings is configured to have the same wavelength shift over time in response to a change in gas diffusion, such that gas diffusion parameters are excluded in the determination of the respective amount of change in temperature, applied strain, and gas diffusion. Also described is a fiber, and techniques for making same, comprising of cores extend through a common cladding. The cores are doped so as to create, in conjunction with the cladding, a plurality of waveguides having the same wavelength shift over time is response to a change in gas diffusion, but different wavelength shifts in response to changes in other parameters.
摘要翻译：描述了适用于在富气环境中运行的基于光纤的传感器。传感器包括一个室，其中安装有一个或多个光纤段，其中刻有多个传感器光栅。多个传感器光栅中的每一个被配置为响应于气体扩散的变化而随时间具有相同的波长偏移，使得在确定相应的温度变化量，施加的应变和气体中排除气体扩散参数扩散。还描述了一种光纤，并且其制造技术包括芯延伸通过公共包层。芯被掺杂以便与包层一起产生具有相同波长位移的多个波导随时间的变化响应于气体扩散的变化，但响应于其它参数的变化而发生不同的波长偏移。

90. 发明申请

US20140233888A1 INDEX MATCHED GRATING INSCRIPTION 有权
公开(公告)号：US20140233888A1
公开(公告)日：2014-08-21
申请号：US14185443
申请日：2014-02-20
申请人： OFS FITEL, LLC
发明人： Kenneth S. Feder , Paul S. Westbrook
IPC分类号： G02B6/02
CPC分类号： G02B6/02095 , G02B6/02042 , G02B6/021 , G02B6/02123 , G02B2006/0209
摘要： The disclosed embodiments provide systems and methods for mitigating lensing and scattering as an optical fiber is being inscribed with a grating. The disclosed systems and methods mitigate the lensing phenomenon by surrounding an optical fiber with an index-matching material that is held in a vessel with an integrated interferometer (e.g., phase mask, etc.). The index-matching material has a refractive index that is sufficient to reduce intensity variations of the actinic radiation within the optical fiber. Some embodiments of the system include different vessels for holding the index-matching material, with the vessel having an interferometer integrated into the vessel. These vessels permit the optical fiber to be surrounded by the index-matching material while the gratings are written to the optical fiber.

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