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    INTERFEROMETER
    91.
    发明申请
    INTERFEROMETER 审中-公开
    干涉

    公开(公告)号：WO1990005282A1

    公开(公告)日：1990-05-17

    申请号：PCT/GB1989001304

    申请日：1989-11-01

    Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY ,  MILLAR, Colin, Anderson

    Inventor： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

    IPC: G01D05/26

    CPC classification number: G01J9/02 ,  G01D5/35303 ,  G01J2009/0226 ,  G01J2009/023 ,  G02F1/2252

    Abstract: An all optical fibre interferometer is formed from an optical fibre Mach-Zehnder interferometer (25) whose output ports (18, 20) are coupled by an optical fibre loop (20) which relaunches any optical signal output from either of the output ports (18, 20) into a respective one of the output ports (20, 18). A piezo-electric stretcher (26) is used to adjust the length of the arm (22) relative to the other arm (24) in response to a measurand. The interferometer outputs at port (1) an interference signal dependent on the relative optical path length of the arms (22, 24) allowing a measurand to be monitored via the same port (1) as the input optical signal Iin is coupled. This allows remote sensing via a single optical fibre coupled to port (1). The interferometer also finds application as a reflection modulator as a variable reflectivity mirror and Q-switch for a fibre laser.

    A COMMON OPTICAL PATH INTERFEROMETRIC GAUGE
    92.
    发明申请
    A COMMON OPTICAL PATH INTERFEROMETRIC GAUGE 审中-公开
    普通光路干涉仪

    公开(公告)号：WO1987001438A1

    公开(公告)日：1987-03-12

    申请号：PCT/US1986001798

    申请日：1986-09-02

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： UNITED TECHNOLOGIES CORPORATION ,  WATERS, James, P. ,  FERNALD, Mark, R.

    IPC: G01B09/02

    CPC classification number: G01B9/02065 ,  G01B9/02057 ,  G01B9/0209 ,  G01J9/02 ,  G01J2009/0226

    Abstract: A common optical path interferometric gauge comprises an optical beam (14) that is split into two beams. Both beams are modulated and recombined after introducing an optical path length difference greater than the coherence length of the optical source (12). The combined beam is guided along a common optical path (46) and is subsequently split into reference and measurement beams. The measurement beam is guided along a measurement optical path that includes a moving workpiece surface (60). Both beams are recombined after interposing an optical path length difference therebetween so as to reestablish coherence between portions thereof producing optical interference indicative of the surface (60) movement.

    Interferometrische Messanordnung zum Überlagern von mindestens zwei Lichtwellen
    94.
    发明公开
    Interferometrische Messanordnung zum Überlagern von mindestens zwei Lichtwellen 审中-公开
    用于叠加的至少两个光波的干涉测量装置

    公开(公告)号：EP1193466A2

    公开(公告)日：2002-04-03

    申请号：EP01117594.0

    申请日：2001-07-20

    Applicant: Medizinisches Laserzentrum Lübeck GmbH

    Inventor： Koch, Peter ,  Engelhardt, Ralf ,  Scholz, Christian

    IPC: G01B9/02 ,  G01D5/353

    CPC classification number: G01B9/02052 ,  G01B9/02056 ,  G01B9/02091 ,  G01B2290/35 ,  G01B2290/45 ,  G01D5/35303 ,  G01J2009/0226

    Abstract: Es handelt sich um eine interferometrische Messanordnung zum Überlagern von mindestens zwei Lichtwellen mit einer ersten Koppeleinrichtung (3) zum Einkoppeln der von einer Lichtquelle (1) kommenden Lichtwellen in einen Probenarm (6, 7) und in einen Referenzarm (4) und mit einer zweiten Koppeleinrichtung (5) zum Überlagern der vom Referenzarm (4) und vom Probenarm (7) kommenden Lichtwellen, die zu mindestens einem Detektor (10, 11) geführt werden. Die Lichtwellen werden zumindest innerhalb des Referenzarms (4) ausschließlich in einem Faserleiter geführt, den sie auf ihrem Weg zwischen den Koppeleinrichtungen (3, 5) nicht verlassen.

    Abstract translation: 它是用于叠加具有用于联接的第一联接装置（3）从光源（1）即将光波到样品臂的至少两个光波的干涉测量装置（6,7），并在参考臂（4）和与第二 耦合装置（5），用于叠加所述参考臂（4）和从未来（7）光波被引导至至少一个检测器（10，11）将所述样品臂。 光波被引导，至少所述参考臂（4）仅在所述耦合装置之间的光纤导体对他们在他们的途中内（3,5）不离开。

    Interferometer
    96.
    发明公开
    Interferometer 失效
    干涉。

    公开(公告)号：EP0376449A1

    公开(公告)日：1990-07-04

    申请号：EP89311299.5

    申请日：1989-11-01

    Applicant: BRITISH TELECOMMUNICATIONS public limited company

    Inventor： Millar, Colin Anderson

    IPC: G01D5/26 ,  G01J9/02 ,  G01B9/02 ,  G01H9/00 ,  G02B6/28 ,  H01S3/08

    CPC classification number: G01J9/02 ,  G01D5/35303 ,  G01J2009/0226 ,  G01J2009/023 ,  G02F1/2252

    Abstract: An an all optical fibre interferometer is formed from an optical fibre Mach-Zehnder interferometer (25) whose output ports (18,20) are coupled by an optical fibre loop (20) which relaunches any optical signal output from either of the output ports (18,20) into a respective one of the output ports (20,18). A piezo-electric stretcher 26 is used to adjust the length of the arm (22) relative to the other arm (24) in response to a measurand. The interferometer outputs at port 1 an intereference signal dependant on the relative optical path length ofthe arms (22,24) allowing a measurand to be monitored via the same port 1 as the input optical signal I in is coupled. This allows remote sensing via a single optical fibre coupled to port 1. The interferometer also finds application as a reflection modulator as a variable reflectivity mirror and Q-switch for a fibre laser.

    Abstract translation: 一个全光纤干涉仪由光纤马赫曾德尔干涉仪（25）形成，其输出端口（18,20）通过光纤环路（20）耦合，光纤环路（20）重新连接从任一个输出端口输出的任何光信号 18,20）输入到输出端口（20,18）中的相应一个。 压电拉伸器26用于响应于被测量而相对于另一臂（24）调节臂（22）的长度。 干涉仪在端口1处输出取决于臂（22,24）的相对光程长度的干扰信号，允许通过与输入光信号I in相耦合的相同端口1监视被测量。 这允许通过耦合到端口1的单个光纤的远程感测。干涉仪还可以应用作为反射调制器作为用于光纤激光器的可变反射镜和Q开关。

    A receiver for laser interferometer systems
    97.
    发明公开
    A receiver for laser interferometer systems 失效
    激光干涉仪系统的接收器

    公开(公告)号：EP0289225A3

    公开(公告)日：1989-11-29

    申请号：EP88303632.9

    申请日：1988-04-21

    Applicant: Hewlett-Packard Company

    Inventor： Cutler, Leonard S. ,  Giffard, Robin P. ,  Holland, William D. ,  Wuerz, Lawrence J.

    IPC: G01J9/02 ,  G01B9/02

    CPC classification number: G01B9/02007 ,  G01B9/02002 ,  G01B9/02067 ,  G01B2290/70 ,  G01J9/02 ,  G01J2009/0226

    Abstract: A receiver for laser interferometer systems is split into two parts connected by a fiber optic link. The front-end (31) of the receiver, located near the remote interferometer optics, houses only the optical components for focusing and mixing the laser beam, and transmits the beam through an optical fiber cable (35). The back-end (33) of the receiver, located remotely, houses the electronic components for detecting and measuring the frequency difference to produce the signal for the measurement electronics.

    Abstract translation: 用于激光干涉仪系统的接收机被分为两部分，通过光纤链路连接。 位于遥控干涉仪光学器件附近的接收器的前端（31）只容纳用于聚焦和混合激光束的光学部件，并且通过光纤电缆（35）传输光束。 位于远端的接收器的后端（33）容纳用于检测和测量频差的电子部件，以产生用于测量电子装置的信号。

    Optical measurement apparatus
    100.
    发明公开
    Optical measurement apparatus 失效
    Optische Messvorrichtung。

    公开(公告)号：EP0130337A2

    公开(公告)日：1985-01-09

    申请号：EP84105748.2

    申请日：1984-05-21

    Applicant: International Business Machines Corporation

    Inventor： Johnson, Mark

    IPC: G01J9/02 ,  G01D5/26

    CPC classification number: G01J9/02 ,  G01D5/268 ,  G01J3/0205 ,  G01J3/021 ,  G01J2009/0226 ,  G01N21/45

    Abstract: An interferometer has an input optical fiber (80) which emits a divergent laser beam (64) across the interferometric cavity (52). At the far side of the cavity the beam is reflected by a retroreflective member (10) coated with microspheres or microprisms, to that the beam (66) converges and falls partly on the end face of an output optic fiber (82) without need for precise positioning of the member (10). Also some light from the fiber (80) is reflected by transparent plate into fiber (82), so that optical interference occurs and is measured by light detector (72).

    Abstract translation: 干涉仪具有输入光纤（80），该输入光纤（80）穿过干涉腔（52）发射发散激光束（64）。 在空腔的远侧，光束被涂覆有微球或微棱镜的回射构件（10）反射，使得束（66）部分地会聚并部分地落在输出光纤（82）的端面上，而不需要 构件（10）的精确定位。 另外，来自光纤（80）的一些光被透明板反射到光纤（82）中，从而发生光学干涉并由光检测器（72）测量。

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