公开(公告)号：US11946814B2

公开(公告)日：2024-04-02

申请号：US17343824

申请日：2021-06-10

申请人： Toyota Motor Engineering & Manufacturing North America, Inc.

发明人： Sean P. Rodrigues ,  Ercan Mehmet Dede

IPC分类号： G01K11/3206 ,  G01K1/02 ,  G02B5/18 ,  E06B3/66 ,  E06B9/24 ,  F21V8/00 ,  G02B6/02 ,  G02B6/12 ,  G02F1/1333 ,  G02F1/1335

CPC分类号： G01K11/3206 ,  G01K1/02 ,  G02B5/18 ,  E06B3/66 ,  E06B9/24 ,  E06B2009/2405 ,  E06B2009/2417 ,  E06B2009/2464 ,  E06B2009/247 ,  G01K1/028 ,  G02B2005/1804 ,  G02B6/0063 ,  G02B6/0068 ,  G02B6/0095 ,  G02B6/02204 ,  G02B2006/12138 ,  G02F1/133342 ,  G02F1/133504

摘要： A window can comprise a first side and a second side substantially parallel to the first side. The window can comprise an optical grating operatively positioned with respect to one of the first side and the second side. The optical grating can be used to determine a temperature at or near the respective one of the first side and the second side.

公开(公告)号：US11681094B2

公开(公告)日：2023-06-20

申请号：US17541867

申请日：2021-12-03

申请人： TERAXION INC.

发明人： Guillaume Brochu ,  Michel Morin ,  François Trépanier

IPC分类号： G02B6/02

CPC分类号： G02B6/02085 ,  G02B6/02204

摘要： Optical fiber filters and uses thereof are presented. In typical implementations, there is provided a FBG taking deleterious light out of a fiber core without reflecting it into the fiber core. It also allows the unhindered transmission of useful light at a wavelength outside of the spectral band covered by the deleterious light. The filter couples the incoming deleterious light to cladding modes propagating in the opposite direction without coupling the incoming useful light to core or cladding modes propagating in the opposite direction. The filter may for example be useful as a Raman or ASE filter in a laser cavity of other optical devices.

公开(公告)号：US09223101B2

公开(公告)日：2015-12-29

申请号：US13789863

申请日：2013-03-08

申请人： WEATHERFORD/LAMB, INC.

发明人： James R. Dunphy ,  John J. Grunbeck ,  Bryan Boemmels ,  Guy Daigle

IPC分类号： G02B6/44 ,  G02B6/42 ,  G01D5/353 ,  G02B6/02

CPC分类号： G02B6/4428 ,  G01D5/35316 ,  G02B6/022 ,  G02B6/02204 ,  G02B6/4248 ,  G02B6/4251 ,  G02B6/4416 ,  G02B6/4477

摘要： An optical transducer is provided. A “measuring” portion of the transducer may be exposed to a high pressure and fluids when the optical transducer is deployed (e.g., in a wellbore or other industrial setting). The transducer may include an optical waveguide with a first portion that forms a first seal that isolates an “instrumentation” portion of the transducer from exposure to the high pressure and fluids to which the measuring portion may be exposed. The transducer may also include a second seal with a “stack” of material elements that contact a second portion of the optical waveguide to also isolate the instrumentation portion of the transducer from exposure to the high pressure and fluids to which the measuring portion may be exposed.

摘要翻译： 提供光学换能器。 换能器的“测量”部分可以暴露于高压和流体，当光学换能器被展开时（例如，在井眼或其他工业环境中）。 换能器可以包括具有第一部分的光波导，第一部分形成第一密封，其将换能器的“仪器”部分与暴露于测量部分可能暴露的高压和流体隔离。 传感器还可以包括具有接触光波导的第二部分的材料元件的“堆叠”的第二密封，以将换能器的仪器部分与暴露于测量部分可能暴露于的高压和流体 。

公开(公告)号：US20150211918A1

公开(公告)日：2015-07-30

申请号：US14678829

申请日：2015-04-03

申请人： The Board of Trustees of the Leland Stanford Junior University

发明人： He Wen ,  Michel J.F. Digonnet ,  Shanhui Fan

IPC分类号： G01J1/04

CPC分类号： G01J1/0488 ,  G01D5/35316 ,  G01J1/0407 ,  G01J1/0425 ,  G01J2001/0496 ,  G01K11/3206 ,  G01L1/246 ,  G02B6/02204 ,  G02B6/29353

摘要： An optical device, a method of configuring an optical device, and a method of using a fiber Bragg grating is provided. The optical device includes a fiber Bragg grating, a narrowband optical source, and at least one optical detector. The fiber Bragg grating has a power transmission spectrum as a function of wavelength with one or more resonance peaks, each comprising a local maximum and two non-zero-slope regions with the local maximum therebetween. The light generated by the narrowband optical source has a wavelength at a non-zero-slope region of a resonance peak that is selected such that one or more of the following quantities, evaluated at the resonance peak, is at a maximum value: (a) the product of the group delay spectrum and the power transmission spectrum and (b) the product of the group delay spectrum and one minus the power reflection spectrum.

摘要翻译： 提供了光学装置，配置光学装置的方法以及使用光纤布拉格光栅的方法。 光学装置包括光纤布拉格光栅，窄带光源和至少一个光学检测器。 光纤布喇格光栅具有作为具有一个或多个谐振峰值的波长的函数的功率透射光谱，每个谐振峰值包括局部最大值和两个非零斜率区域，其间具有局部最大值。 由窄带光源产生的光在共振峰的非零斜率区域处具有波长，其选择为使得在共振峰处评估的以下量中的一个或多个处于最大值：（a ）组延迟谱和功率透射光谱的乘积，（b）组延迟谱与1减去功率反射谱的乘积。

公开(公告)号：US08953237B2

公开(公告)日：2015-02-10

申请号：US13383140

申请日：2010-07-08

申请人： Xiaoke Yi ,  Tong Chen ,  Thomas Huang ,  Robert Minasian

发明人： Xiaoke Yi ,  Tong Chen ,  Thomas Huang ,  Robert Minasian

IPC分类号： G02B26/00 ,  G02B6/02

CPC分类号： G02B6/02204 ,  G02B6/02085 ,  H04B2210/006

摘要： A photonic signal processor providing finite impulse response filtering of an external input signal, the processor including: a photonic signal input having a predetermined wavelength range, a Bragg grating structure interconnected to the photonic signal input and having a series of localized modifications to the periodicity of the grating structure so as to provide a predetermined transmission output window within the stopband of the Bragg grating structure and predetermined wavelength range; a modulator interconnected to the grating structure for modulating the output from the grating structure in accordance with the external signal input; a delay structure for providing a wavelength variable delay to the output from the modulator; an intensity detector interconnected to the delay structure for determining and outputting the intensity of the delay structure output.

摘要翻译： 提供对外部输入信号的有限脉冲响应滤波的光子信号处理器，所述处理器包括：具有预定波长范围的光子信号输入，与所述光子信号输入互连的布拉格光栅结构，并且具有对所述光子信号周期的周期性的一系列局部修改 光栅结构，以便在布拉格光栅结构的阻挡带和预定波长范围内提供预定的透射输出窗口; 互连到光栅结构的调制器，用于根据外部信号输入调制光栅结构的输出; 用于向调制器的输出提供波长可变延迟的延迟结构; 互连到延迟结构的强度检测器，用于确定和输出延迟结构输出的强度。

公开(公告)号：US08849080B1

公开(公告)日：2014-09-30

申请号：US13740346

申请日：2013-01-14

申请人： Tariq Manzur

发明人： Tariq Manzur

IPC分类号： G02B6/34 ,  H01S3/00 ,  H01S3/094 ,  H01S3/067 ,  G02B6/02

CPC分类号： G02B6/34 ,  G02B6/02095 ,  G02B6/02204 ,  G02B6/02295 ,  G02B6/4214 ,  G02B6/4215 ,  G02B6/4287 ,  H01S3/067 ,  H01S3/06708 ,  H01S3/0675 ,  H01S3/094003 ,  H01S3/094019 ,  H01S3/1055 ,  H01S5/141 ,  H01S5/147 ,  H01S5/4012 ,  H01S5/4062 ,  H01S5/4068 ,  H01S5/4087

摘要： An optical fiber coupler includes a clad optical fiber core having a coupling window formed therein. A laser source is joined to emit light into the core through the coupling window. The core has an output coupler for partially reflecting a portion of light and transmitting a portion as output. A Bragg grating is formed in the core having a pitch and being positioned to reflect light from said laser source toward the output coupler. The pitch is variable in response to a temperature change. A thermal control device is joined to the core for adjusting its temperature and the Bragg grating pitch. In other embodiments a mode convertor is provided to reduce the output modes to selected modes.

摘要翻译： 光纤耦合器包括其中形成有耦合窗的包层光纤芯。 激光源被连接以通过耦合窗口将光发射到芯中。 芯具有用于部分地反射一部分光并将一部分作为输出传输的输出耦合器。 在具有间距的芯中形成布拉格光栅，并被定位成将来自所述激光源的光朝向输出耦合器反射。 音调根据温度变化而变化。 热控制装置连接到芯部以调节其温度和布拉格光栅间距。 在其他实施例中，提供模式转换器以将输出模式减小到所选择的模式。

公开(公告)号：US08737780B2

公开(公告)日：2014-05-27

申请号：US13524241

申请日：2012-06-15

申请人： Real Vallee ,  Martin Bernier

发明人： Real Vallee ,  Martin Bernier

IPC分类号： G02B6/34

CPC分类号： B29D11/00663 ,  G02B6/02138 ,  G02B6/02204

摘要： A method for writing a Bragg grating in a glass optical waveguide is provided. Ultrafast optical pulses are generated, preferably in the femtosecond range and having a writing wavelength in the range of 300 nm to 700 nm and an intensity sufficient to induce a change of refractive index in the waveguide through densification. The optical pulses are diffracted using a phase mask, to generate an interference pattern having a pitch providing a fundamental Bragg resonance corresponding to the target wavelength to be reflected by the grating. The interference pattern is impinged on a region of the waveguide, which is heated to a temperature above a threshold and for a predetermined heating period. Advantageously, the heating step allows the reduction of photoinduced losses which would otherwise be present in the waveguiding properties of the waveguide. Optionally, gratings may be written through the polymer jacket of an optical fiber.

摘要翻译： 提供了一种在玻璃光波导中写布拉格光栅的方法。 产生超快光脉冲，优选在飞秒范围内，并且具有在300nm至700nm范围内的写入波长和足以通过致密化引起波导管中折射率变化的强度。 使用相位掩模对光脉冲进行衍射，以产生具有相应于由光栅反射的目标波长的基本布拉格谐振的间距的干涉图案。 干涉图案被照射在波导的区域上，该区域被加热到高于阈值的温度并且达预定的加热周期。 有利地，加热步骤允许降低否则将存在于波导的波导特性中的光致损失。 可选地，光栅可以被写入光纤的聚合物护套。

公开(公告)号：US20130193961A1

公开(公告)日：2013-08-01

申请号：US13745663

申请日：2013-01-18

申请人： The Board of Trustees of the Leland Stanford Junior University

发明人： He Wen ,  Michel J.F. Digonnet ,  Shanhui Fan

IPC分类号： G01J1/04

CPC分类号： G01J1/0488 ,  G01D5/35316 ,  G01J1/0407 ,  G01J1/0425 ,  G01J2001/0496 ,  G01K11/3206 ,  G01L1/246 ,  G02B6/02204 ,  G02B6/29353

摘要： An optical device, a method of configuring an optical device, and a method of using a fiber Bragg grating is provided. The optical device includes a fiber Bragg grating, a narrowband optical source, and at least one optical detector. The fiber Bragg grating has a power transmission spectrum as a function of wavelength with one or more resonance peaks, each comprising a local maximum and two non-zero-slope regions with the local maximum therebetween. The light generated by the narrowband optical source has a wavelength at a non-zero-slope region of a resonance peak that is selected such that one or more of the following quantities, evaluated at the resonance peak, is at a maximum value: (a) the product of the group delay spectrum and the power transmission spectrum and (b) the product of the group delay spectrum and one minus the power reflection spectrum.

摘要翻译： 提供了光学装置，配置光学装置的方法以及使用光纤布拉格光栅的方法。 光学装置包括光纤布拉格光栅，窄带光源和至少一个光学检测器。 光纤布喇格光栅具有作为具有一个或多个谐振峰值的波长的函数的功率透射光谱，每个谐振峰值包括局部最大值和两个非零斜率区域，其间具有局部最大值。 由窄带光源产生的光在共振峰的非零斜率区域处具有波长，其选择为使得在共振峰处评估的以下量中的一个或多个处于最大值：（a ）组延迟谱和功率透射光谱的乘积，（b）组延迟谱与1减去功率反射谱的乘积。

公开(公告)号：US20130059140A1

公开(公告)日：2013-03-07

申请号：US13224785

申请日：2011-09-02

申请人： Mark L. HLAVINKA ,  Charles D. MILLS ,  Qing YANG ,  Guylaine ST. JEAN

发明人： Mark L. HLAVINKA ,  Charles D. MILLS ,  Qing YANG ,  Guylaine ST. JEAN

IPC分类号： B32B3/00 ,  B32B27/00

CPC分类号： B32B27/327 ,  B32B27/08 ,  B32B27/32 ,  B32B2250/03 ,  B32B2250/242 ,  B32B2307/724 ,  B32B2439/70 ,  B32B2553/00 ,  G01D5/35316 ,  G01K11/3206 ,  G01L1/246 ,  G02B6/02204 ,  G02B6/29353 ,  Y10T428/31855

摘要： A multilayer polymer film comprising an outer skin layer, an inner seal layer and at least one core layer disposed between the inner and outer skin layer, wherein the outer skin layers comprises a metallocene-catalyzed ethylene polymer having a density of equal to or greater than about 0.945 g/cc and a melt index equal to or greater than 0.5 g/10 min. A multilayer polymer film comprising a metallocene-catalyzed high-density polyethylene homopolymer skin layer and at least one core layer comprising a high-density polyethylene having a melt index of less than or equal to 2.0 g/10 min. A multilayer polymer film comprising at least a skin layer and a core layer wherein the skin layer comprises a metallocene-catalyzed ethylene polymer provided from a catalyst composition comprising a single metallocene and an activator support.

摘要翻译： 一种多层聚合物膜，其包含外表皮层，内密封层和设置在内表层和外表层之间的至少一个芯层，其中外表皮层包含茂金属催化的乙烯聚合物，其密度等于或大于 约0.945g / cc，熔体指数等于或大于0.5g / 10min。 一种多金属聚合物膜，其包含茂金属催化的高密度聚乙烯均聚物表层和至少一个包含熔体指数小于或等于2.0g / 10min的高密度聚乙烯的芯层。 至少包含表皮层和芯层的多层聚合物膜，其中表层包含由包含单一茂金属和活化剂载体的催化剂组合物提供的茂金属催化的乙烯聚合物。

公开(公告)号：US07711224B1

公开(公告)日：2010-05-04

申请号：US12209779

申请日：2008-09-12

申请人： François Pelletier ,  Martin Lapointe ,  Simon Savard

发明人： François Pelletier ,  Martin Lapointe ,  Simon Savard

IPC分类号： G02B6/34 ,  H04J14/02

CPC分类号： H04J14/02 ,  G02B6/022 ,  G02B6/02204 ,  G02B6/29394 ,  H04B10/2519

摘要： A colorless tunable dispersion compensator for compensating for chromatic dispersion in a multi-channel light signal is provided. The compensator includes a multi-channel Bragg grating extending along a waveguide. Dispersion tuning means, such as a temperature gradient inducing device, are provided for tuning the dispersion characteristics of the wavelength channels. Wavelength shifting means are also provided for uniformly shifting the central wavelengths of all channels independently of their dispersion characteristics. A uniform temperature inducing or strain applying assembly can be used for this purpose.

摘要翻译： 提供了一种用于补偿多通道光信号中色散的无色可调色散补偿器。 补偿器包括沿着波导延伸的多通道布拉格光栅。 提供了诸如温度梯度诱导装置之类的色调调谐装置，用于调谐波长通道的色散特性。 还提供了波长移动装置，用于均匀地移动所有通道的中心波长，而与它们的色散特性无关。 为此，可以使用均匀的温度诱导或应变组件。