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    Optical waveguide embedded light redirecting Bragg grating arrangement
    2.
    发明公开
    Optical waveguide embedded light redirecting Bragg grating arrangement 失效
    Umlenkende Bragg-Gitteranordnung在einem optischen Wellenleiter。

    公开(公告)号：EP0438759A2

    公开(公告)日：1991-07-31

    申请号：EP90125111.6

    申请日：1990-12-21

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Meltz, Gerald ,  Glenn, William Henry

    IPC: G02B6/12 ,  G02B6/16 ,  G02B6/34

    CPC classification number: G02B6/02133 ,  G02B6/02109 ,  G02B6/02128

    Abstract: An optical waveguide light tapping arrangement includes an optical waveguide (10) having solid portions (11) that guide light in a first path along a longitudinal axis, with at least one grating region (13) being embedded in the solid portion at a location remote from its end portions. The grating region includes a multitude of grating elements (14) extending with a substantially equal longitudinal spacing (a) at an oblique angle (α) 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 at an angle relative to the longitudinal axis that depends on the oblique angle. 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 narrow range around a central wavelength that is in a predetermined relationship to the spacing of the grating elements. The light propagating in the other path can then be captured. The grating elements are formed in the core by exposing the core 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 core axis.

    Abstract translation: 光波导光束排列装置包括具有实心部分（11）的光波导（10），所述实心部分沿着纵向轴线引导第一路径中的光，其中至少一个光栅区域（13）嵌入固体部分中的远程位置 从其端部。 光栅区域包括多个光栅元件（14），其相对于纵向轴线以相对于纵向轴线（α）的大致相等的纵向间隔（a）延伸，以重定向到达光栅元件的光在第一路径和至少一个 第二路径相对于纵向轴线以相对于倾斜角度的角度相对于波导外延伸。 当光被引导到第一和第二路径中的一个朝向光栅区域时，其被光栅元件重定向到第二和第一路径中的另外的另一个路径，并且在具有波长的光的另一个光路中伴随着同相的组合 围绕与光栅元件的间隔成预定关系的中心波长的窄范围。 然后可以捕获在另一路径中传播的光。 光栅元件通过将芯暴露于相对于以相对于芯轴为倾斜角延伸的平面对称的两个紫外线辐射束的干涉图案而形成在芯中。

    Multi-core optical waveguide bragg grating light redirecting arrangement
    3.
    发明公开
    Multi-core optical waveguide bragg grating light redirecting arrangement 失效
    使用光学多芯波导光栅光的重新定向的布置。

    公开(公告)号：EP0435194A2

    公开(公告)日：1991-07-03

    申请号：EP90125097.7

    申请日：1990-12-21

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Meltz, Gerald ,  Morey, William Wayne

    IPC: G02B6/16 ,  G02B6/34 ,  G02B6/12

    CPC classification number: G02B6/29317 ,  G02B6/02085 ,  G02B6/29323 ,  G02B6/29334

    Abstract: An optical waveguide light redirecting arrangement includes an optical waveguide having at least two solid portions each of which guides light in a path along a longitudinal axis, with at least one grating region being embedded in each solid portion. Each grating region includes a multitude of grating elements extending at such identical longitudinal spacings and at such an identical angle relative to the longitudinal axis as to redirect light reaching the grating elements between the path of one and the path of the other of the waveguiding portions.

    Abstract translation: 光波导的光重新定向结构包括在具有至少两个实心部分的每一个在沿纵向轴线的路径引导光的光波导，具有至少一个光栅区域被嵌入在每个固体部分。 每个光栅区域包括在寻求相同纵向间距和在寻求相对于纵向轴线相同的角度延伸的光栅元件的多个作为重定向光到达一个的路径，而另一个波导部分中的路径之间的光栅元件。

    Single sideband waveguide modulator
    4.
    发明公开
    Single sideband waveguide modulator 失效
    Eeningitenbandmodulator在Wellenleiteranordnung。

    公开(公告)号：EP0374897A1

    公开(公告)日：1990-06-27

    申请号：EP89123584.8

    申请日：1989-12-20

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Cheo, Peter K. ,  Meltz, Gerald

    IPC: G02F1/035

    CPC classification number: G02F1/025 ,  G02F1/0356

    Abstract: A novel single sideband electro-optic modulator (10) in­cludes a planar waveguide structure (14) allowing only circularly po­larized optical and microwaves to propagate therein with equal phase velocities comprises a strip loaded GaAlAs/GaAs/GaAlAs structure with appropriate microstrip electrodes (16). The present modulator (10) is readily fabricated using established microelectronic fabrication techniques and a modified MOCVD epitaxial growth pro­cess.

    Abstract translation: 新颖的单边带电光调制器（10）包括平面波导结构（14），其仅允许圆偏振光学和微波在其中以相等的相速度传播，包括具有合适的微带电极（16）的条带负载的GaAlAs / GaAs / GaAlAs结构， 。 使用已建立的微电子制造技术和改进的MOCVD外延生长工艺容易地制造本调制器（10）。

    Variable optical fiber Bragg filter arrangement
    5.
    发明公开
    Variable optical fiber Bragg filter arrangement 失效
    Anordnung einer optischen Faser mit variablem Braggfilter

    公开(公告)号：EP0924546A1

    公开(公告)日：1999-06-23

    申请号：EP99101327.7

    申请日：1990-12-21

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Morey, William W. ,  Glenn, William H. ,  Leonberger, Frederick J. ,  Meltz, Gerald

    IPC: G02F1/01 ,  G02F1/125 ,  G02B6/16 ,  G02B6/34

    CPC classification number: G02B6/29322 ,  G02B6/022 ,  G02B6/02204 ,  G02B6/29395 ,  G02F1/0115 ,  G02F1/0126 ,  G02F1/0131 ,  G02F1/0147 ,  G02F1/125 ,  G02F2201/02 ,  G02F2201/307 ,  G02F2203/055

    Abstract: A variable light filtering arrangement (10) includes at least one optical fiber section (11) including a waveguiding core (13), and at least one permanent Bragg grating region (12) 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.

    Abstract translation: 可变光滤波装置（10）包括至少一个包括波导芯（13）的光纤部分（11）和光纤部分中的至少一个永久布拉格光栅区域（12）。 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以引导传播的光，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受控地修改。

    Microwave air-path clearance sensor
    6.
    发明公开
    Microwave air-path clearance sensor 失效
    Schaufelspitzenspiel-Mikrowellensensor

    公开(公告)号：EP0806680A2

    公开(公告)日：1997-11-12

    申请号：EP97107567.6

    申请日：1997-05-07

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Crzybowski, Richard R. ,  Meltz, Gerald

    IPC: G01S13/08

    CPC classification number: G01B15/00 ,  F01D11/025 ,  F01D11/12 ,  F01D21/04 ,  F05D2260/80 ,  G01S13/36 ,  G01S13/88

    Abstract: A machine having protruding elements 26 and an adjacent abradable seal 18, which move relative to each other, an air-path clearance G between the seal 18 and the elements 26 and an element distance D2 between the sensor 10 and the elements 26, is provided with a sensor 10 which is recessed within the seal 18 by a recess distance D. A clearance/thickness circuit 14 provides transmitted and reflected microwave signals 30,32 along a coaxial cable 12 having a characteristic impedance, to the sensor 10, which has an impedance substantially matched to the characteristic impedance of the cable 12. The sensor 10 provides the reflected signal 32 which is indicative of the recess distance D when the elements 26 are not in front of the sensor 10 and is indicative of the blade distance D2 between the sensor 10 and the elements 26 when the elements 26 are in front of the sensor 10. The circuit 14 receives the reflected signal 32 and provides electrical signals indicative of the recess distance D and/or the air-path clearance G. Alternatively, the circuit 14 may provide only the recess distance D. The sensor 10 provides such measurements whether or not the machine is operating.

    Abstract translation: 提供具有突出元件26和相对于彼此移动的相邻可磨损密封件18的机器，在密封件18和元件26之间的空气通道间隙G和传感器10与元件26之间的元件距离D2 其中传感器10在密封件18内凹入凹陷距离D。间隙/厚度电路14将具有特性阻抗的同轴电缆12的发射和反射的微波信号30,32提供给传感器10，传感器10具有 阻抗基本上与电缆12的特性阻抗相匹配。传感器10提供反射信号32，反射信号32表示当元件26不在传感器10的前面时的凹陷距离D，并且指示在两者之间的叶片距离D2 传感器10和元件26当元件26位于传感器10的前方时。电路14接收反射信号32并提供指示凹陷距离D an的电信号 d /或空气通道间隙G.或者，电路14可以仅提供凹陷距离D.传感器10提供这样的测量，无论机器是否正在操作。

    Optical waveguide embedded light redirecting and focusing bragg grating arrangement
    8.
    发明公开
    Optical waveguide embedded light redirecting and focusing bragg grating arrangement 失效
    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：EP0435201A3

    公开(公告)日：1992-03-18

    申请号：EP90125112.4

    申请日：1990-12-21

    Applicant: UNITED TECHNOLOGIES CORPORATION

    Inventor： Meltz, Gerald ,  Morey, William Wayne ,  Wilson, Arnold Leroy

    IPC: G02B6/12 ,  G02B6/34 ,  G02B6/16

    CPC classification number: G02B6/02133 ,  G02B6/02085 ,  G02B6/34

    Abstract: 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.

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