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    Optical time division switching system
    2.
    发明授权
    Optical time division switching system 失效
    光时域切换系统

    公开(公告)号：US3604936A

    公开(公告)日：1971-09-14

    申请号：US3604936D

    申请日：1968-08-20

    Applicant: BELL TELEPHONE LABOR INC

    Inventor： KOMPFNER RUDOLF

    IPC: H04J14/08 ,  H04Q3/52 ,  H04B9/00

    CPC classification number: H04Q3/526 ,  H04J14/08

    Abstract: An optical time division switching system is described in which coherent light from a laser is successively applied to a group of modulators controlled by electrical signals from corresponding stations. The light from each modulator is selectively delayed for transmission to another station in the group and then sequentially combined into a single light beam. This light beam is applied to a group of detectors wherein the light is successively demodulated in accordance with the selectively delay sequence. The electrical signals from each detector are connected to their corresponding stations to complete the desired communication paths.

    Optical fiber with asymmetric index profile
    9.
    发明授权
    Optical fiber with asymmetric index profile 失效
    具有不对称折射率分布的光纤

    公开(公告)号：US3887264A

    公开(公告)日：1975-06-03

    申请号：US36151673

    申请日：1973-05-18

    Applicant: BELL TELEPHONE LABOR INC

    Inventor： KOMPFNER RUDOLF

    IPC: G02B6/028 ,  G02B6/38 ,  G02B5/14

    CPC classification number: G02B6/0288 ,  G02B6/3803

    Abstract: This application describes a graded-index optical fiber comprising a core having at least one planar surface that extends in a direction parallel to the direction of wave propagation. The refractive index of the core material continuously decreases in the transverse direction from a maximum value at a point along the planar surface, to a minimum value at the other surfaces of the core. It is an advantage of this type of fiber that two sections can be spliced together by overlapping portions of their planar surfaces rather than by butt joining.

    Abstract translation: 本申请描述了一种分级折射率光纤，其包括具有沿平行于波传播方向的方向延伸的至少一个平坦表面的芯。 芯材的折射率在横向方向上从沿着平面的一点的最大值连续减小到芯的其他表面处的最小值。 这种类型的纤维的优点是两个部分可以通过它们的平面表面的重叠部分而不是通过对接接合而拼接在一起。

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