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    • 72. 发明授权
    • Method and apparatus for automatic tracking of an optical signal in a wireless optical communication system
    • 在无线光通信系统中自动跟踪光信号的方法和装置
    • US06792185B1
    • 2004-09-14
    • US09516268
    • 2000-02-29
    • Robert George AhrensHerman Melvin PresbyGerald E. TourgeeJohn Anthony Tyson
    • Robert George AhrensHerman Melvin PresbyGerald E. TourgeeJohn Anthony Tyson
    • G02B604
    • H04B10/1121
    • A method and apparatus are disclosed for aligning and maintaining the alignment of the transmitting unit and the receiving unit in an optical wireless communication system. The receiving unit includes an optical bundle positioned at the focal point of an objective optic element. The optical bundle is comprised of an array of optical fibers, arranged surrounding the receiving fiber. The receiving unit also includes a number of detectors that measure the optical signal strength on a corresponding fiber in the optical bundle. The array of fibers is used to detect the location of the received signal relative to the receiving optical fiber and to provide feedback to adjust the orientation of the optical bundle to optimize the received signal strength. When misalignment occurs between the received signal and the receiving fiber, some of the incident received signal will be captured by one or more of the outer optical fibers. The amplitude of each of the generated signals are then compared to each other, thereby giving a direction in which to drive the optical bundle back into alignment with the received signal. The present invention provides automatic tracking using the information-carrying optical signal, without the need for a separate laser.
    • 公开了用于在光学无线通信系统中对准和维持发送单元和接收单元的对准的方法和装置。 接收单元包括位于物镜光学元件的焦点处的光束。 光束由围绕接收光纤布置的光纤阵列组成。 接收单元还包括测量光束中相应光纤上的光信号强度的多个检测器。 纤维阵列用于检测接收信号相对于接收光纤的位置,并提供反馈以调整光束的取向以优化接收的信号强度。 当接收到的信号与接收光纤之间发生不对准时,一些或多个外部光纤会捕获一些入射的接收信号。 然后将每个产生的信号的振幅彼此比较,从而给出驱动光束与接收信号对准的方向。 本发明提供使用信息携带光信号的自动跟踪,而不需要单独的激光。
    • 77. 发明授权
    • Aligning sleeve for a bundle of fiberoptic cylindrical fibers
    • 对齐套管一束纤维圆柱形纤维
    • US06654528B2
    • 2003-11-25
    • US10095804
    • 2002-02-19
    • Erich A. Rosenast
    • Erich A. Rosenast
    • G02B604
    • G02B6/403G02B6/04
    • An aligning sleeve for a bundle of fiberoptic cylindrical fibers which comprises an elongated body formed of rigid material with the body having a fore end and an aft end. A passage is formed within the body extending from the fore end to the aft end with this through passage being hexagonally shaped in transverse section. Six in number of evenly spaced longitudinal corners are formed within the hexagonal shaped opening with each corner adapted to have nested therein a longitudinally oriented fiber. All the remaining fibers of the bundle align with these corner fibers with the result that all fibers in a bundle are located parallel to each other and tightly packed within the through passage.
    • 用于一束纤维圆柱形纤维的对准套筒,其包括由刚体材料形成的细长主体,其本体具有前端和后端。 在该主体内形成有从前端延伸到后端的通道,该通道在横截面上是六边形的。 在六角形开口内形成六个均匀间隔的纵向角部,每个角部适于嵌套有纵向取向的纤维。 束的所有剩余纤维与这些角纤维对准,结果是束中的所有纤维彼此平行并紧密地包装在通路内。