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    FIBER OPTIC SWITCH AND DISCRETELY VARIABLE DELAY LINE
    2.
    发明申请
    FIBER OPTIC SWITCH AND DISCRETELY VARIABLE DELAY LINE 审中-公开
    光纤开关和分辨率可变延迟线

    公开(公告)号：WO1984002005A1

    公开(公告)日：1984-05-24

    申请号：PCT/US1982001608

    申请日：1982-11-12

    Applicant: THE BOARD OF TRUSTEES OF THE LELAND STANFORD ... ,  SHAW, Herbert, John ,  BOWERS, John, E.

    Inventor： THE BOARD OF TRUSTEES OF THE LELAND STANFORD ...

    IPC: G02B05/172

    CPC classification number: G02B6/2826 ,  G02B6/283 ,  G02B6/2861

    Abstract: A single mode optical fiber switch having a base (70) and a laterally slidable top (91). The base is composed of a quartz block (70) with a slight radius of curvature along its length supporting a silicon substrate (66) having a plurality of parallel v-grooves (68). The grooves are fitted with single mode optical fiber segments (64) and lapped to create a flat coupling surface (82) extending laterally across the base. The top (91) is composed of a quartz block with a single v-groove (93) holding a segment of single-mode fiber (95). This fiber (95) is lapped to create a flat coupling surface matable with the coupling surface on the base. The base (70) and top (91) are placed together such that the top fiber (95) may be selectively slid into and out of coupling alignment with any of the fibers (64) in the base (70) to form a discretely variable delay line. A single length of fiber (121) is wrapped around the base (70) in helical fashion with each loop being secured in one of the v-grooves (68). By coupling the top fiber (95) with different loops of the base fibers (121), different amounts of delay can be obtained. The delay line can be used to provide variable frequency response for notch and transversal filters.

    Abstract translation: 一种具有基座（70）和横向滑动顶部（91）的单模光纤开关。 基座由石英块（70）组成，石英块（70）沿其长度具有微小的曲率半径，支撑着具有多个平行的V形槽（68）的硅衬底（66）。 凹槽配有单模光纤段（64）并重叠，以形成横向延伸穿过底座的平坦的耦合表面（82）。 顶部（91）由具有保持单模光纤（95）的单个v形槽（93）的石英块组成。 该纤维（95）被研磨以产生可与基底上的联接表面配合的平坦的联接表面。 基部（70）和顶部（91）被放置在一起，使得顶部纤维（95）可以选择性地滑入和离开与基部（70）中的任何纤维（64）的联接对准，以形成离散变量 延迟线。 单个长度的纤维（121）以螺旋方式围绕基部（70）缠绕，每个环被固定在一个V形槽（68）中。 通过将顶部纤维（95）与基础纤维（121）的不同环耦合，可以获得不同的延迟量。 延迟线可用于为陷波和横向滤波器提供可变频率响应。

    Laying of optical waveguides onto a support filament
    3.
    发明公开
    Laying of optical waveguides onto a support filament 失效
    将光波导置于支持光纤上

    公开(公告)号：EP0113973A3

    公开(公告)日：1985-12-04

    申请号：EP83307589

    申请日：1983-12-13

    Applicant: NORTHERN TELECOM LIMITED

    Inventor： McKay, Glen ,  Williams, Robert John

    IPC: G02B05/16 ,  G02B05/172

    CPC classification number: G02B6/4491 ,  G02B6/449

    Abstract: © Apparatus for laying of optical waveguides (16) into sinuous grooves (52) of a support filament (10) in which a laying device surrounding a feed path for the filament has a plurality of elongate guide elements (56) for the waveguides, the elements extending downstream from a carrier (42) and being inclined to the feed path to terminate in free inner ends. The guide elements are rigid and are allowed by the carrier to have lateral swinging movement to enable their free ends to follow the path of a groove in the support filament as it moves along its feed path. A groove locating projection (50) is provided to maintain positional relationship between the carrier and support filament as the filament passes the carrier.

    CONTINUOUSLY VARIABLE FIBER OPTIC DELAY LINE
    5.
    发明申请
    CONTINUOUSLY VARIABLE FIBER OPTIC DELAY LINE 审中-公开
    连续可变光纤延迟线

    公开(公告)号：WO1984002006A1

    公开(公告)日：1984-05-24

    申请号：PCT/US1982001609

    申请日：1982-11-12

    Applicant: THE BOARD OF TRUSTEES OF THE LELAND STANFORD ... ,  SHAW, Herbert, John ,  BOWERS, John, E. ,  NEWTON, Steven, A.

    Inventor： THE BOARD OF TRUSTEES OF THE LELAND STANFORD ...

    IPC: G02B05/172

    CPC classification number: G02B6/2861 ,  G02B6/2821 ,  G02B6/2826 ,  G02B6/283 ,  Y10S359/90

    Abstract: A continuously variable optical delay line having a first substrate (66, 70) and a second substrate (95). The first substrate is composed of a quartz block (70) with a large radius of curvature along its length, supporting a silicon substrate (66) having a plurality of longitudinal, parallel v-grooves (68). A single length (121) of single mode optical fiber is wrapped around the first substrate (66, 70) in helical fashion with each loop being secured in one of the v-grooves (68). The portions of the fiber (121) in the v-grooves (68) are lapped and polished to create a flat coupling surface extending laterally and longitudinally across the first substrate (66, 70). The second substrate (91) is composed of a quartz block with a single v-groove holding a segment of single mode fiber (95). The radius of curvature of this v-groove is substantially smaller than that of the first substrate, such that the flat coupling surface of the second substrate (91) is shorter than that of the first substrate (66). The first and second substrates are placed together such that the fiber in the second substrate is coupled to the fiber in the first substrate. By moving (142) the second substrate longitudinally with respect to the first substrate, a continuously variable delay can be obtained. The continuously variable delay line can be combined with a separate discretely variable delay line to create a longer continuous variable delay. The continuous variable delay line can be formed with only one v-groove (68) in the first substrate (66). fjdkfjdkfdjf

    Abstract translation: 一种具有第一基板（66,70）和第二基板（95）的连续可变光延迟线。 第一衬底由沿其长度具有大曲率半径的石英块（70）组成，支撑具有多个纵向平行V形槽（68）的硅衬底（66）。 单模光纤的单个长度（121）以螺旋方式缠绕在第一基板（66,70）周围，每个环固定在一个V形槽（68）中。 所述v形槽（68）中的所述纤维（121）的所述部分被研磨和抛光以产生横向和纵向延伸穿过所述第一衬底（66,70）的平坦的联接表面。 第二基板（91）由具有保持单模光纤（95）的单个v形槽的石英块组成。 该v形槽的曲率半径比第一衬底的曲率半径小，使得第二衬底（91）的平坦耦合表面比第一衬底（66）的平坦的耦合表面短。 将第一和第二基板放置在一起，使得第二基板中的光纤耦合到第一基板中的光纤。 通过相对于第一基板纵向移动（142）第二基板，可以获得连续可变的延迟。 连续可变延迟线可以与单独的离散可变延迟线组合以产生更长的连续可变延迟。 连续可变延迟线可以在第一基板（66）中仅形成一个V形槽（68）。 fjdkfjdkfdjf

    SINGLE MODE FIBER WITH GRADED INDEX OF REFRACTION
    6.
    发明申请
    SINGLE MODE FIBER WITH GRADED INDEX OF REFRACTION 审中-公开
    单模光纤，具有等级的折射率

    公开(公告)号：WO1983001517A1

    公开(公告)日：1983-04-28

    申请号：PCT/US1982001332

    申请日：1982-09-27

    Applicant: WESTERN ELECTRIC COMPANY, INC.

    Inventor： WESTERN ELECTRIC COMPANY, INC. ,  CARNEVALE, Anthony ,  PAEK, Un-Chul ,  PETERSON, George, Earl

    IPC: G02B05/172

    CPC classification number: G02B6/0281 ,  G02B6/02238

    Abstract: Optical fiber which supports essentially only a single guided mode, perhaps degenerate, at the transmission wavelength, usually between 0.6 and 1.7 microns. The index of refraction of the core material is graded in the radial direction so as to yield an optical fiber with very low total dispersion and therefore high bandwidth. Specific embodiments include, in addition to the low dispersion characteristic, improved field confinement, and therefore permit lower clad-to-core ratios then heretofore believed practical. Additional advantages which accrue as a result of the greater field confinement include lower cabling, microbending, and curvature-induced losses.

    Abstract translation: 光纤在传输波长上基本上仅支持单一的导模，也许是退化的，通常在0.6和1.7微米之间。 核心材料的折射率在径向方向上分级，以便产生具有非常低的总色散和因此高带宽的光纤。 具体实施例除了低色散特性之外还包括改进的场约束，并且因此允许较低的包层对芯比，因此迄今为止认为是实际的。 由于更大的场地限制而产生的额外优点包括降低布线，微弯曲和曲率引起的损耗。

    Low dispersion, low-loss single-mode optical waveguide
    8.
    发明公开
    Low dispersion, low-loss single-mode optical waveguide 失效
    低分散，低损耗单模光波导

    公开(公告)号：EP0083843A3

    公开(公告)日：1984-01-04

    申请号：EP82306476

    申请日：1982-12-06

    Applicant: Corning Glass Works

    Inventor： Bhagavatula, Venkata Adiseshaiah

    IPC: G02B05/172

    CPC classification number: G02B6/02238 ,  G02B6/02276 ,  G02B6/0286 ,  G02B6/03644 ,  G02B6/03666

    Abstract: Disclosed is an optical waveguide fiber having a core (10, 12, 14) surrounded by a layer (16) of cladding material. The core is characterized in that it includes a region (14) of depressed refractive index. The inner radius a i of this region (14) is greater than zero, and the outer radius a o thereof is less than the core radius. By appropriately selecting the core index depression characteristics such as radial location, width, depth and shape, a fiber having the desired waveguide dispersion characteristics can be designed. Dispersion minimization over a wide wavelength range can be achieved, without adverse affect on system loss.

    Optical waveguide filament and a method of forming a preform therefor
    9.
    发明公开
    Optical waveguide filament and a method of forming a preform therefor 失效
    光波导光纤及其形成方法

    公开(公告)号：EP0033645A3

    公开(公告)日：1982-05-05

    申请号：EP81300398

    申请日：1981-01-30

    Applicant: CORNING GLASS WORKS

    Inventor： Levin, Philip Stephen

    IPC: G02B05/172 ,  C03C13/00 ,  C03C25/00 ,  B32B17/00 ,  B32B01/00

    CPC classification number: G02B6/03694 ,  C03C13/045 ,  G02B6/0281 ,  G02B6/03644

    Abstract: An optical waveguide filament is disclosed which comprises a cladding layer, a core and a barrier layer disposed between the core and cladding. The barrier layer comprises silica doped with B 2 O 3 , P 2 O 5 and GeO 2 . The core consists of an inner region and an outer region, the boundary between which is referred to as the core break-point. In the outer region of the core, the concentration of B 2 O 3 decreases linearly from its barrier layer level to zero at the core break-point, the P 2 O 5 increases at a rapid rate from the barrier layer level to a first concentration level at the core break-point and the GeO 2 remains at a constant value between zero and the barrier level. In the outer region of the core, the GeO 2 increases from some level up tothe barrier layer level to a greater value at the filament axis in a power law fashion. The P 2 O 5 also increases in a power law fashion from the value thereof at the core break-pointto a higher value at the filament axis, the increase in concentration of P 2 O 5 in the outer core region increasing at a rate greater than the concentration of P 2 O 5 would increase if the power law P 2 O 5 gradient extended into the outer core region. Also disclosed is a method of making a preform for such a filament.

    INTRAWAVEGUIDE FIBER OPTIC BEAMSPLITTER/COUPLER
    10.
    发明申请
    INTRAWAVEGUIDE FIBER OPTIC BEAMSPLITTER/COUPLER 审中-公开
    内部光纤光纤/耦合器

    公开(公告)号：WO1985000898A1

    公开(公告)日：1985-02-28

    申请号：PCT/US1984001275

    申请日：1984-08-14

    Applicant: CHANG, David, B.

    IPC: G02B05/172

    CPC classification number: G02B6/2817 ,  Y10S359/90

    Abstract: An intrawaveguide fiber optic beamsplitter/coupler and method in which an oriented slot (10) is formed in an intact optical fiber (12) whereby the internal slot (10) functions to divide and direct light along desired paths (16, 18).

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