-
公开(公告)号：US20230324165A1
公开(公告)日：2023-10-12
申请号：US17716266
申请日：2022-04-08
Applicant: AUTOMATED PRECISION INC.
Inventor： Yongwoo PARK , Shuai SUN , Kam LAU
IPC: G01B9/0209
CPC classification number: G01B9/0209 , G01B2290/20 , G01B2290/70 , G01B2290/35 , G01B2290/25
Abstract: A broadband interferometry for a measurement range extension beyond a coherence length of a light source includes a wavelength tunable laser as the light source outputting a coherence wavelength beam; and an interferometer disposed between the wavelength tunable laser and a target to be measured and including a reference arm, a measurement arm and a device combining a reference beam and measurement mean to produce a combined interference beam, wherein a local oscillation of the reference beam is replicated by a cavity multiplication or cascading optical delayed lines with a fiber optic cavity, and quantifiable optical properties including a wavelength group delay, a chromatic dispersion, a polarization mode dispersion and a model dispersion are inserted into the local oscillation of the reference beam to incrementally quantify the replicated copies of the local oscillation as the number of the delayed copies of the local oscillation increase for extension of a measurement rage to the target.
-
公开(公告)号：US20180052049A1
公开(公告)日：2018-02-22
申请号：US15556662
申请日：2016-03-08
Applicant: Teknologian tutkimuskeskus VTT Oy
Inventor： Aapo Varpula , Mika Prunnila , Kestutis Grigoras
CPC classification number: G01J3/26 , B81B7/00 , G01B9/02 , G01B9/02018 , G01B2290/25 , G01J1/0414 , G01J3/0278 , G01J3/45 , G01J2003/2879 , G02B5/08 , G02B5/0816 , G02B5/28 , G02B26/0841 , H01L21/02019 , H01L21/2003
Abstract: A method for producing a mirror plate for a Fabry-Perot interferometer includes providing a substrate, which includes silicon, implementing a semi-transparent reflective coating on the substrate, forming a passivated region in and/or on the substrate by etching a plurality of voids in the substrate, and by passivating the surfaces of the voids, forming a first sensor electrode on top of the passivated region, and forming a second sensor electrode supported by the substrate.
-
公开(公告)号：US09791261B2
公开(公告)日：2017-10-17
申请号：US15205888
申请日：2016-07-08
Applicant: Axsun Technologies LLC
Inventor： Dale C. Flanders , Walid A. Atia , Bartley C. Johnson , Mark E. Kuznetsov , Carlos R. Melendez
CPC classification number: G01B9/02091 , G01B9/02004 , G01B9/02044 , G01B9/02059 , G01B9/02069 , G01B2290/25 , H01S3/08013 , H01S3/08054 , H01S3/1067 , H01S5/02248 , H01S5/02415 , H01S5/068 , H01S5/141 , H01S5/146
Abstract: A frequency swept laser source for TEFD-OCT imaging includes an integrated clock subsystem on the optical bench with the laser source. The clock subsystem generates frequency clock signals as the optical signal is tuned over the scan band. Preferably the laser source further includes a cavity extender in its optical cavity between a tunable filter and gain medium to increase an optical distance between the tunable filter and the gain medium in order to control the location of laser intensity pattern noise. The laser also includes a fiber stub that allows for control over the cavity length while also controlling birefringence in the cavity.
-
公开(公告)号：US20160320172A1
公开(公告)日：2016-11-03
申请号：US15205888
申请日：2016-07-08
Applicant: Axsun Technologies LLC
Inventor： Dale C. Flanders , Walid A. Atia , Bartley C. Johnson , Mark E. Kuznetsov , Carlos R. Melendez
CPC classification number: G01B9/02091 , G01B9/02004 , G01B9/02044 , G01B9/02059 , G01B9/02069 , G01B2290/25 , H01S3/08013 , H01S3/08054 , H01S3/1067 , H01S5/02248 , H01S5/02415 , H01S5/068 , H01S5/141 , H01S5/146
Abstract: A frequency swept laser source for TEFD-OCT imaging includes an integrated clock subsystem on the optical bench with the laser source. The clock subsystem generates frequency clock signals as the optical signal is tuned over the scan band. Preferably the laser source further includes a cavity extender in its optical cavity between a tunable filter and gain medium to increase an optical distance between the tunable filter and the gain medium in order to control the location of laser intensity pattern noise. The laser also includes a fiber stub that allows for control over the cavity length while also controlling birefringence in the cavity.
Abstract translation: 用于TEFD-OCT成像的频率扫描激光源包括具有激光源的光学台上的集成时钟子系统。 当光信号在扫描带上调谐时，时钟子系统产生频率时钟信号。 优选地，激光源还包括在可调谐滤波器和增益介质之间的光腔中的腔体延长器，以增加可调谐滤波器和增益介质之间的光学距离，以便控制激光强度图案噪声的位置。 该激光器还包括一个纤维短截线，其允许控制腔体长度，同时还控制空腔中的双折射。
-
公开(公告)号：US09417051B2
公开(公告)日：2016-08-16
申请号：US14028873
申请日：2013-09-17
Applicant: Axsun Technologies LLC
Inventor： Dale C. Flanders , Walid Atia , Bartley C. Johnson , Mark E. Kuznetsov , Carlos R. Melendez
CPC classification number: G01B9/02091 , G01B9/02004 , G01B9/02044 , G01B9/02059 , G01B9/02069 , G01B2290/25 , H01S3/08013 , H01S3/08054 , H01S3/1067 , H01S5/02248 , H01S5/02415 , H01S5/068 , H01S5/141 , H01S5/146
Abstract: A frequency swept laser source for TEFD-OCT imaging includes an integrated clock subsystem on the optical bench with the laser source. The clock subsystem generates frequency clock signals as the optical signal is tuned over the scan band. Preferably the laser source further includes a cavity extender in its optical cavity between a tunable filter and gain medium to increase an optical distance between the tunable filter and the gain medium in order to control the location of laser intensity pattern noise. The laser also includes a fiber stub that allows for control over the cavity length while also controlling birefringence in the cavity.
-
Patent Agency Ranking
公开(公告)号：US09173563B2
公开(公告)日：2015-11-03
申请号：US13733263
申请日：2013-01-03
Applicant: Bioptigen, Inc.
Inventor： Eric L. Buckland , Joseph A. Izatt , William J. Brown
CPC classification number: A61B3/14 , A61B3/1005 , A61B3/102 , A61B3/1208 , A61B3/1225 , A61B3/125 , G01B9/02028 , G01B9/0205 , G01B9/02057 , G01B9/02089 , G01B9/02091 , G01B2290/25 , G01B2290/35 , G01N21/4795
Abstract: Portable optical coherence tomography (OCT) devices including at least one mirror configured to scan at least two directions are provided. The portable OCT devices are configured to provide a portable interface to a sample that can be aligned to the sample without repositioning the sample. Related systems are also provided.
Abstract translation: 提供了包括配置成扫描至少两个方向的至少一个反射镜的便携式光学相干断层摄影（OCT）装置。 便携式OCT设备被配置为向样本提供便携式接口，该样本可以与样品对准而不重新定位样品。 还提供了相关系统。
-
7.发明授权公开(公告)号：US09139468B2
公开(公告)日：2015-09-22
申请号：US14172486
申请日：2014-02-04
Applicant: University of Maribor
Inventor： Denis Donlagic , Simon Pevec , Edvard Cibula
CPC classification number: C03B37/14 , G01B1/00 , G01B11/18 , G01B2290/25 , G01D5/268 , G01L1/242 , G01L11/025
Abstract: Optical fiber sensors adapted to measure strain or pressure are disclosed. The optical fiber sensor has a lead-in optical fiber having an end surface at a forward end, and a first optical element having a body with an outer dimension, Do, a front end surface coupled to the lead-in optical fiber, a pedestal including a retracted surface that is spaced from the front end surface, the retracted surface at least partially defining an optical cavity, a gutter surrounding the pedestal, the gutter having a gutter depth defining an active region of length, L, the first optical element further exhibiting L/Do≧0.5. Also provided are systems including the optical fiber sensor, and methods for manufacturing and using the optical fiber sensor. Numerous other aspects are provided.
Abstract translation: 公开了适于测量应变或压力的光纤传感器。 光纤传感器具有在前端具有端面的引入光纤，以及具有外部尺寸的主体Do的第一光学元件，连接到引入光纤的前端表面，基座 包括与所述前端表面间隔开的缩回表面，所述缩回表面至少部分地限定光学腔，围绕所述基座的沟槽，所述沟槽具有限定长度有效区域L的沟槽深度，所述第一光学元件进一步 显示L /Do≥0.5。 还提供了包括光纤传感器的系统，以及用于制造和使用光纤传感器的方法。 提供了许多其他方面。
-
公开(公告)号：US20150019160A1
公开(公告)日：2015-01-15
申请号：US14284756
申请日：2014-05-22
Applicant: attocube Systems AG
Inventor： Klaus Thurner , Khaled Karrai , Pierre-Francois Braun
CPC classification number: G01B9/02 , G01B9/02002 , G01B9/02003 , G01B9/02004 , G01B9/02007 , G01B11/00 , G01B2290/25
Abstract: A device for absolute distance measurement includes a first tunable light source for emitting a first wavelength light of a first tunable frequency modulated by a first modulating frequency and a second light source for emitting a second wavelength light of a second frequency modulated by a second modulating frequency. An optical coupler couples the first wavelength light and the second wavelength light into an interferometer cavity. An interferometer detector provides an interference measurement signal based on a detected interference pattern. A demodulator unit generates a first demodulation signal based on the interference measurement signal by demodulation with the first modulating frequency and a second demodulation signal based on the interference measurement signal by demodulation with the second modulating frequency. A computation unit computes an absolute distance by evaluating the first demodulation signal acquired during a sweep of the first tunable frequency and the second demodulation signal.
Abstract translation: 用于绝对距离测量的装置包括用于发射由第一调制频率调制的第一可调谐频率的第一波长光和第二光源的第一可调谐光源，用于发射由第二调制频率调制的第二频率的第二波长光 。 光耦合器将第一波长光和第二波长光耦合到干涉仪腔中。 干涉仪检测器基于检测到的干涉图案提供干扰测量信号。 解调器单元通过利用第一调制频率的解调产生基于干扰测量信号的第一解调信号，并且以第二调制频率通过解调产生基于干扰测量信号的第二解调信号。 计算单元通过评估在第一可调谐频率和第二解调信号的扫描期间获取的第一解调信号来计算绝对距离。
-
公开(公告)号：US08848197B2
公开(公告)日：2014-09-30
申请号：US13945075
申请日：2013-07-18
Applicant: Marcel W. Pruessner , Todd H. Stievater , William S. Rabinovich
Inventor： Marcel W. Pruessner , Todd H. Stievater , William S. Rabinovich
IPC: G01B9/02 , G01N21/17 , G01G3/16 , G01N29/036
CPC classification number: G01N21/75 , G01B9/02004 , G01B9/02051 , G01B2290/25 , G01G3/165 , G01N21/17 , G01N29/036 , G01N2021/757 , G01N2291/0256
Abstract: A mass sensor system including multiple Fabry-Perot microcavities connected in parallel by multiple waveguides. Each of the mass sensors includes a microbridge having a fundamental resonance frequency, and a movable reflective mirror etched into the microbridge; a fixed reflective mirror etched in a substrate, the fixed reflective mirror being fixed to the substrate in a region spaced apart from the movable reflective mirror; and an optical waveguide etched in the substrate that connects the movable mirror and the fixed mirror forming the Fabry-Perot microcavity interferometer. The system includes a tunable continuous-wave laser operative to optically interrogate the Fabry-Perot microcavity of each of the plurality of mass sensors, and a receiver operative to receive sensor signals from each of the plurality of mass sensors, the sensor signals comprising reflective signals and transmitted signals. A continuous-wave laser may generate optical forces that modify the motion, dynamics, or mechanical Q-factor of the microbridge.
Abstract translation: 一种质量传感器系统，包括由多个波导并联连接的多个法布里 - 珀罗微腔。 每个质量传感器包括具有基本共振频率的微桥和蚀刻到微桥中的可移动反射镜; 在基板中蚀刻的固定反射镜，所述固定反射镜在与所述可移动反射镜间隔开的区域中固定到所述基板; 以及在连接可移动镜和形成法布里 - 珀罗微腔干涉仪的固定镜的基板中蚀刻的光波导。 该系统包括可调谐的连续波激光器，其可操作以光学询问多个质量传感器中的每一个的法布里 - 珀罗微腔，以及接收器，用于接收来自多个质量传感器中的每一个的传感器信号，传感器信号包括反射信号 并发送信号。 连续波激光器可以产生改变微桥的运动，动力学或机械Q因子的光学力。
-
10.发明申请公开(公告)号：US20140160491A1
公开(公告)日：2014-06-12
申请号：US14236487
申请日：2012-08-03
Applicant: Stephane Bouillet , Chloe Morin
Inventor： Stephane Bouillet , Chloe Morin
IPC: G01B11/24
CPC classification number: G01B11/2441 , G01B9/02018 , G01B9/02057 , G01B9/02087 , G01B11/306 , G01B2290/25
Abstract: A method for absolute measurement of flatness of surfaces of optical elements. In the method, an interferometer having a measurement axis is used for applying a three-flat method by three optical elements, by conducting actual measurements on the elements, and planes of the elements are reconstructed by an iterative processing operation in which measurements are simulated and simulated measurements are compared with the actual measurements. At least two actual measurements are made after having performed a rotation around the measurement axis and/or a translation perpendicularly to the measured axis, of a measured optical element relatively to the other.
Abstract translation: 一种绝对测量光学元件表面平面度的方法。 在该方法中，使用具有测量轴的干涉仪通过三个光学元件施加三平面方法，通过对元件进行实际测量，并且通过迭代处理操作重建元件的平面，其中模拟测量， 将模拟测量与实际测量值进行比较。 在相对于另一测量轴测量的光学元件执行围绕测量轴的旋转和/或垂直于测量的轴的平移之后进行至少两次实际测量。
-
-
-
-
-
-
-
-
-
Search Results
263
records
(took 0.023 seconds)
