Optical switcher used for broadcast station
    11.
    发明授权
    Optical switcher used for broadcast station 失效
    用于广播电台的光切换器

    公开(公告)号:US06859579B2

    公开(公告)日:2005-02-22

    申请号:US10256004

    申请日:2002-09-27

    摘要: To provide an optical switcher capable of sending incident light on one input port to any plurality of output ports. The optical switcher includes input ports disposed on extensions of m input optical paths (m being 2 or greater natural number), output ports disposed on extensions of n output optical paths (n being 2 or greater natural number), and movable translucent switch mirrors 311-3mn, disposed at intersections of the m input optical paths and the n output optical paths, for switching between the input optical paths and the output optical paths. A switch mirror 311-3mn located nearer the input ports has a higher transmittance.

    摘要翻译: 提供能够将一个输入端口上的入射光发送到任何多个输出端口的光学切换器。 光切换器包括设置在m个输入光路(m为2或更大自然数)的扩展上的输入端口,设置在n个输出光路径(n为2或更大自然数)的延伸上的输出端口以及可移动半透明开关反射镜311 -3mn,设置在m个输入光路和n个输出光路的交叉处,用于在输入光路和输出光路之间切换。 位于更靠近输入端口的开关镜311-3mn具有更高的透射率。

    Piezo-electric actuator control method and device and variable
wavelength filter using the piezo-electric actuator device
    12.
    发明授权
    Piezo-electric actuator control method and device and variable wavelength filter using the piezo-electric actuator device 失效
    压电电动执行器控制方法和装置以及使用压电致动器的可变波长滤波器

    公开(公告)号:US6046525A

    公开(公告)日:2000-04-04

    申请号:US827303

    申请日:1997-03-28

    申请人: Takahiro Shiozawa

    发明人: Takahiro Shiozawa

    CPC分类号: H01L41/042 G01J3/26

    摘要: This invention provides the easy and consistent displacement control of a piezo-electric actuator for driving the variable wavelength filter used for wavelength multiplexed optical communication, wherein the piezo-electric actuator is controlled once to the initial displacement condition and, thereafter, a driving voltage is applied to the piezo-electric actuator based on the displacement characteristic data stored in a memory circuit for obtaining a desired displacement.

    摘要翻译: 本发明提供了用于驱动用于波长复用光通信的可变波长滤波器的压电致动器的容易且一致的位移控制,其中压电致动器被控制一次到初始位移条件,此后,驱动电压为 基于存储在存储电路中的位移特性数据来施加到压电致动器,以获得期望的位移。