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1. 发明授权

US06198557B1 Telecommunication system having frequency-dividing optical components for the parallel processing of optical pulses 失效
标题翻译：具有用于光脉冲并行处理的分频光学部件的电信系统
公开(公告)号：US06198557B1
公开(公告)日：2001-03-06
申请号：US08882638
申请日：1997-06-25
申请人： Wolfgang Dultz , Hans Koops , Erna Frins , Gerald Meltz
发明人： Wolfgang Dultz , Hans Koops , Erna Frins , Gerald Meltz
IPC分类号： H04J1402
CPC分类号： H04L27/28 , H04B10/2504
摘要： A telecommunication system having frequency-dividing optical components where light pulses having different frequencies are coupled out of a optical fiber by fiber grating and/or photonic crystals and imaged by focusing elements outside of the optical fiber. The fiber grating for different frequencies can be used in a single period or in different periods disposed one after the other. The photonic crystals can be used at the optical fiber extremity or etched in a channel or trench in a glass fiber. Delay elements are added to ensure that different frequency light pulses are imaged simultaneously in a given and desired time relation as required for further parallel processing.
摘要翻译：具有分频光学部件的电信系统，其中具有不同频率的光脉冲通过光纤光栅和/或光子晶体从光纤耦合出来，并通过光纤外部的聚焦元件成像。用于不同频率的光纤光栅可以在一个接一个地布置的单个周期或不同周期中使用。光子晶体可以在光纤末端使用或在玻璃纤维中的通道或沟槽中蚀刻。添加延迟元件以确保按照进一步并行处理所需的给定和期望的时间关系同时对不同频率的光脉冲进行成像。

2. 发明授权

US5493390A Integrated optical instrumentation for the diagnostics of parts by embedded or surface attached optical sensors 失效
标题翻译：用于通过嵌入式或表面附着的光学传感器诊断零件的集成光学仪器
公开(公告)号：US5493390A
公开(公告)日：1996-02-20
申请号：US294874
申请日：1994-08-23
申请人： Mauro Varasi , Antonello Vannucci , Mario Signorazzi , Pietro Ferraro , Sabato Inserra Imparato , Claudio Voto , James R. Dunphy , Gerald Meltz
发明人： Mauro Varasi , Antonello Vannucci , Mario Signorazzi , Pietro Ferraro , Sabato Inserra Imparato , Claudio Voto , James R. Dunphy , Gerald Meltz
IPC分类号： G01D5/353 , C01B11/16
CPC分类号： G01M11/086 , G01D5/35383
摘要： A system based on integrated optical technologies for the measurement and diagnostics of physical parameters on whatever structure, by the use of optical sensors, made by the fiber embedded Bragg grating method and by the use of a planar integrated optics device for the analysis of the optical signal. The sensors may be embedded or bonded to the structure, allowing the measurement of parameters like strain and temperature, in either a static or dynamic regime. The system pertains to the technical field of the diagnostics and measurements of mechanical or thermal parameters and to the application field of ground, water and aerospace transportation and also to the application field of construction.
摘要翻译：一种基于集成光学技术的系统，用于通过光纤嵌入布拉格光栅法和通过使用平面集成光学器件分析光学元件，通过使用光学传感器对物理参数进行任何结构的测量和诊断信号。传感器可以嵌入或结合到结构上，允许在静态或动态状态下测量诸如应变和温度的参数。该系统涉及机械或热参数的诊断和测量技术领域以及地面，水和航空航天运输的应用领域以及施工领域。

3. 发明授权

US4807950A Method for impressing gratings within fiber optics 失效
标题翻译：在光纤内施加光栅的方法
公开(公告)号：US4807950A
公开(公告)日：1989-02-28
申请号：US122830
申请日：1987-11-19
申请人： William H. Glenn , Gerald Meltz , Elias Snitzer
发明人： William H. Glenn , Gerald Meltz , Elias Snitzer
IPC分类号： G01J1/02 , G01K11/12 , G01L1/00 , G02B5/18 , G02B6/00 , G02B6/02 , G02B6/124 , G02B6/34 , G02F1/01
CPC分类号： G02B5/18 , G02B6/02133 , G02B6/022 , G02B6/02204 , G02B6/124 , Y10S359/90
摘要： An optical fiber has a dielectric periodic index of refraction phase grating established in its core by intense angled application of several transverse beams of ultraviolet light, enabling the establishment of a distributed, spatially resolving optical fiber strain gauge.
摘要翻译：光纤通过强烈的角度施加几个紫外线的横梁，具有建立在其芯中的折射相位光栅的介电周期性折射率，使得能够建立分布式空间分辨的光纤应变计。

4. 发明授权

US4653906A Spatially resolving fiber-optic crosstalk strain sensor 失效
标题翻译：空间分辨光纤串扰应变传感器
公开(公告)号：US4653906A
公开(公告)日：1987-03-31
申请号：US640491
申请日：1984-08-13
申请人： James R. Dunphy , Gerald Meltz , Elias Snitzer
发明人： James R. Dunphy , Gerald Meltz , Elias Snitzer
IPC分类号： G02B6/00 , G01B11/16 , G01L1/24 , G02B6/02
CPC分类号： G01L1/243
摘要： An optical strain measuring arrangement including an optical waveguide comprising first and second cores fixedly mounted with respect to a mechanical structure to be monitored, and a detection system for relating the contrast in light intensity emerging from said cores to a range of wavelengths to establish an indication of strain along the range of the optical waveguide.
摘要翻译：一种光学应变测量装置，包括光波导，该光波导包括相对于待监视的机械结构固定地安装的第一和第二芯，以及用于将从所述芯出现的光强度中的对比度与波长范围相关联的检测系统，以建立指示的应变沿着光波导的范围。

5. 发明授权

US4295739A Fiber optic temperature sensor 失效
标题翻译：光纤温度传感器
公开(公告)号：US4295739A
公开(公告)日：1981-10-20
申请号：US162284
申请日：1980-06-23
申请人： Gerald Meltz , Elias Snitzer
发明人： Gerald Meltz , Elias Snitzer
IPC分类号： G01B11/16 , G01K11/32 , G01L1/24 , G01L11/02 , G01J5/38
CPC分类号： G01K11/32 , G01B11/18 , G01L1/243 , G01L11/025
摘要： A multicore optical fiber having a plurality of cores positioned across the diameter of a common cladding can be so optimized to respond to either temperature or strain by the selection of materials, spacing and shape of the cores in the fiber. The cross-talk between adjacent cores in the fiber changes in response to either a change in temperature or a strain along the length of the fiber. The temperature, strain or pressure change, can be determined by measuring the relative intensity of light emerging from the different cores of the fiber. If the fiber is optimized to respond to temperature change, then a high degree of temperature sensitivity can be provided over a large unambiguous range. Alternatively, cross-talk can be made temperature insensitive so that the intensity pattern of light emerging from the various cores in the fiber is only a function of the strain exerted on the fiber.
摘要翻译：具有跨越公共包层的直径定位的多个芯的多芯光纤可以如此优化，以通过材料的选择，纤维中的芯的间隔和形状来响应温度或应变。纤维中的相邻芯之间的串扰响应于温度的变化或沿着纤维的长度的应变而变化。温度，应变或压力变化可以通过测量从纤维的不同纤芯出射的光的相对强度来确定。如果光纤被优化以响应温度变化，则可以在很大的明确范围内提供高度的温度灵敏度。或者，串扰可以使得温度不敏感，使得从纤维中的各种芯出现的光的强度图案仅仅是施加在纤维上的应变的函数。

6. 发明授权

US4295738A Fiber optic strain sensor 失效
标题翻译：光纤应变传感器
公开(公告)号：US4295738A
公开(公告)日：1981-10-20
申请号：US162283
申请日：1980-06-23
申请人： Gerald Meltz , Elias Snitzer
发明人： Gerald Meltz , Elias Snitzer
IPC分类号： G01B11/16 , G01L1/24 , G01L11/00 , G01L11/02 , G08C23/00
CPC分类号： G01L1/243 , G01B11/18 , G01L11/025
摘要： An optical fiber having at least two cores positioned in a common cladding can be fabricated to be responsive to strain or hydrostatic pressure but not to temperature through the selection of materials, spacing and shape of the cores and cladding in the fiber. Accordingly, the cross-talk between adjacent cores in the optical waveguide can be optimized to respond to a change in hydrostatic pressure or in unidirectional strain along the length of the fiber. The strain or pressure change, can be determined by measuring the relative intensity of light emerging from the different cores of the fiber. A larger unambiguous range for strain or hydrostatic pressure changes can be provided by a multi-core optical fiber embodiment.
摘要翻译：可以制造具有位于共同包层中的至少两个芯的光纤，以响应于应变或静水压力，而不是通过材料的选择，纤芯中的芯和包层的间隔和形状来选择温度。因此，可以优化光波导中相邻芯之间的串扰，以响应静水压力的变化或沿着光纤长度的单向应变。应变或压力变化可以通过测量从纤维的不同纤芯出射的光的相对强度来确定。应变或静水压力变化的更大的明确范围可以由多芯光纤实施例提供。

7. 发明授权

US5564832A Birefringent active fiber laser sensor 失效
标题翻译：双折射有源光纤激光传感器
公开(公告)号：US5564832A
公开(公告)日：1996-10-15
申请号：US475124
申请日：1995-06-07
申请人： Gary A. Ball , Gerald Meltz
发明人： Gary A. Ball , Gerald Meltz
IPC分类号： G01K11/12 , G01B11/16 , G01D5/353 , G01D21/00 , G01M11/00 , G01N21/21 , G01N21/23 , G01N21/41 , H01S3/067 , G01K11/00 , G01L1/24
CPC分类号： G01D5/35383 , G01J3/1895 , H01S3/0675
摘要： A birefringent active fiber laser sensor includes one or more fiber lasers 12, 14, 16, each having a pair of Bragg gratings 18, 20, embedded in a fiber 10 and excited by a common pump light 30. At least one of the lasers 12, 14, 16 has a laser cavity wit a predetermined birefrigence and a lasing light at a first lasing frequency along a first polarization axis, and at a second fusing frequency along a second polarization axis. A difference frequency between the first and the second lasing frequencies is related to the magnitude of the birefringence, and the birefringence varies in response to a perturbation. Output light 104 from each of the lasers 12,14,16 is fed to a defraction grating 106 which splits the beam 104 into different wavelength groups, each group having the two lasing frequencies and polarizations of a given laser. Each wavelength group is fed to a corresponding analyzer 122-126 which combines the first and second frequencies and polarizations for each laser to form a lower difference or "beat" frequency, thereby allowing lower frequency detection devices 138-142 to be used.
摘要翻译：双折射有源光纤激光传感器包括一个或多个光纤激光器12,14,16，每个光纤激光器12,14,16都具有嵌入在光纤10中并由公共泵浦光30激发的一对布拉格光栅18,20。至少一个激光器12 ，14,16具有具有预定双折射率的激光腔和沿着第一偏振轴的第一激光频率的激光照射和沿第二偏振轴的第二熔化频率。第一和第二激光频率之间的差频与双折射的大小有关，并且双折射响应于扰动而变化。来自每个激光器12,14,16的输出光104被馈送到折射光栅106，其将光束104分成不同的波长组，每组具有给定激光器的两个激光频率和极化。每个波长组被馈送到对应的分析器122-126，该分析器122-126将每个激光器的第一和第二频率和偏振组合以形成较低的差分或“拍频”，从而允许使用较低频率检测装置138-142。

8. 发明授权

US5061032A Optical waveguide embedded light redirecting and focusing Bragg grating arrangement 失效
标题翻译：光学波导嵌入式光重定向和聚焦布拉格光栅布置
公开(公告)号：US5061032A
公开(公告)日：1991-10-29
申请号：US456442
申请日：1989-12-26
申请人： Gerald Meltz , William W. Morey , Arnold L. Wilson
发明人： Gerald Meltz , William W. Morey , Arnold L. Wilson
IPC分类号： G02B5/18 , G02B6/02 , G02B6/122 , G02B6/34
CPC分类号： G02B6/02133 , G02B6/02085 , G02B6/34
摘要： An optical waveguide light redirecting arrangement includes an optical waveguide having a solid portion that guides light in a first path along a longitudinal axis, with at least one grating region being embedded in the solid portion at a location remote from its end portions. The grating region includes a multitude of grating elements extending at such longitudinal spacings and at such oblique angles relative to the longitudinal axis to redirect light reaching the grating elements between the first path and at least one second path extending externally of the waveguide and diverging between a focus situated at a predetermined distance from the waveguide and the grating region. When light is directed in one of the first and second paths toward the grating region, it is redirected by the grating elements into the respectively other of the second and first paths with attendant in-phase combination in the other path of light having a wavelength within a range around a central wavelength. The grating elements are formed in the waveguide by exposing the waveguide to an interference pattern of two ultraviolet radiation beams that are symmetrical with respect to a plane extending at the oblique angle relative to the waveguide axis at the center of the grating region.

9. 发明授权

US5007705A Variable optical fiber Bragg filter arrangement 失效
标题翻译：可变光纤布拉格滤波器布置
公开(公告)号：US5007705A
公开(公告)日：1991-04-16
申请号：US456449
申请日：1989-12-26
申请人： William W. Morey , Fred J. Leonberger , William H. Glenn , Gerald Meltz
发明人： William W. Morey , Fred J. Leonberger , William H. Glenn , Gerald Meltz
IPC分类号： G02B26/00 , G02B6/34 , G02F1/01 , G02F1/125
CPC分类号： G02B6/29322 , G02B6/022 , G02B6/02204 , G02B6/29395 , G02F1/0115 , G02F1/0126 , G02F1/0131 , G02F1/0147 , G02F1/125 , G02F2201/02 , G02F2201/307 , G02F2203/055
摘要： A variable light filtering arrangement includes at least one optical fiber section including a waveguiding core, and at least one permanent Bragg grating region in the optical fiber section. The grating region includes a plurality of grating elements constituted by periodic refractive index variations of a predetermined initial periodicity and cumulatively redirecting, of the light launched into the core for guided propagation therein, that having an axial wavelength within a narrow band around a central wavelength that is determined by the periodicity and refractive index variations of the grating elements. At least one of the periodicity and refractive index variations of the grating region is controlledly modified in such a manner as to temporarily change the central wavelength within a predetermined wavelength range.
摘要翻译：可变光滤波装置包括至少一个包括波导芯的光纤部分和光纤部分中的至少一个永久布拉格光栅区域。光栅区域包括多个光栅元件，其由预定的初始周期的周期性折射率变化构成，并且累积地重定向发射到芯中的光，用于在其中引导传播，其具有围绕中心波长的窄带内的轴向波长，由光栅元件的周期性和折射率变化决定。光栅区域的周期性和折射率变化中的至少一种可以以预定波长范围内暂时改变中心波长的方式进行可变地修改。

10. 发明授权

US4577100A Temperature compensated optical pressure sensor 失效
标题翻译：温度补偿光学压力传感器
公开(公告)号：US4577100A
公开(公告)日：1986-03-18
申请号：US565496
申请日：1983-12-27
申请人： Gerald Meltz , Louis B. Allen, Jr. , Carl M. Ferrar
发明人： Gerald Meltz , Louis B. Allen, Jr. , Carl M. Ferrar
IPC分类号： G01L11/00 , G01L1/24 , G01L9/00 , G01L11/02
CPC分类号： G01L9/0076 , G01L11/025
摘要： An integrated optical pressure transducer having a diaphragm fabricated from a low-loss glass is positioned at the location where pressure changes are to be measured. An optical waveguide loop formed on one surface of the diaphragm acts as a ring cavity in which the difference between the resonating frequencies varies with pressure but not with temperature. Light energy is coupled into the waveguide loop from an optical source through a tangentially located input waveguide. An output waveguide, also tangentially located, couples light energy from the waveguide loop to a broadband detector so that the changes in frequency spectrum of the resonating frequencies within the waveguide loop can be monitored.
摘要翻译：具有由低损耗玻璃制造的隔膜的集成光学压力传感器位于要测量压力变化的位置。形成在隔膜的一个表面上的光波导路径用作环形腔，其中谐振频率之间的差异随压力而变化，但不随温度变化。光能通过切向定位的输入波导从光源耦合到波导环路中。也是切向定位的输出波导将来自波导回路的光能耦合到宽带检测器，从而可以监测波导环路内谐振频率的频谱变化。

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