Tunable dispersion compensator and method of manufacturing the same
    11.
    发明申请
    Tunable dispersion compensator and method of manufacturing the same 有权
    可调谐色散补偿器及其制造方法

    公开(公告)号:US20060280397A1

    公开(公告)日:2006-12-14

    申请号:US11410925

    申请日:2006-04-26

    IPC分类号: G02F1/295 G02B6/34

    摘要: A tunable dispersion compensator in which a heater portion can be easily constructed to reduce cost. A tunable dispersion compensator includes: an optical fiber having a grating portion; a heating unit for heating the grating portion to apply a temperature distribution to the grating portion; and a control unit for controlling the temperature distribution applied by the heating unit to control the group delay time characteristic of the grating portion. The heating unit includes: a heater including a single conductor having electrical resistors and which extends in a longitudinal direction of the grating portion over at least the entire length of the grating portion; and wirings electrically connected with the heater in respective positions along the longitudinal direction. The control unit supplies a voltage to each of the wirings.

    摘要翻译: 可调谐色散补偿器,其中可以容易地构造加热器部分以降低成本。 可调谐色散补偿器包括:具有光栅部分的光纤; 加热单元,用于加热光栅部分以向光栅部分施加温度分布; 以及控制单元,用于控制由加热单元施加的温度分布,以控制光栅部分的群延迟时间特性。 加热单元包括:加热器,其包括具有电阻器的单个导体,并且在光栅部分的至少整个长度上沿光栅部分的纵向方向延伸; 以及沿着纵向在相应位置与加热器电连接的布线。 控制单元向每个配线提供电压。

    Polarization dispersion compensating apparatus
    12.
    发明授权
    Polarization dispersion compensating apparatus 有权
    极化色散补偿装置

    公开(公告)号:US06882760B2

    公开(公告)日:2005-04-19

    申请号:US10362760

    申请日:2001-06-29

    摘要: A polarization dispersion compensation apparatus includes a polarization controller, a polarization beam splitter, an optical delay circuit, and a polarization beam combiner. The polarization controller controls polarization of an optical signal so that the polarization axis of the input optical signal substantially coincides with the optical axis of an optical transmission line, and the polarization beam splitter section splits the optical signal into two polarized components perpendicular to each other. The optical delay circuit section causes a difference in delay between the two polarized components, and the polarization beam combiner section combines the two polarized components output from the optical delay circuit section. Each of the polarization beam splitter section and the polarization beam combiner section includes a symmetric Mach-Zehnder interferometer having optical transmission lines in two arms, each arm including a temperature control and a birefringence portion for compensating polarization dispersion between the two polarized components.

    摘要翻译: 偏振色散补偿装置包括偏振控制器,偏振分束器,光延迟电路和偏振束组合器。 偏振控制器控制光信号的偏振,使得输入光信号的偏振轴基本上与光传输线的光轴重合,并且偏振分束器部分将光信号分离成彼此垂直的两个偏振分量。 光延迟电路部分导致两个极化分量之间的延迟差异,并且偏振束组合器部分组合从光延迟电路部分输出的两个偏振分量。 偏振分束器部分和偏振束组合器部分中的每一个包括具有两个臂中的光传输线的对称马赫 - 曾德干涉仪,每个臂包括用于补偿两个偏振分量之间的偏振分散的温度控制和双折射部分。

    Temperature control system for a grating
    14.
    发明授权
    Temperature control system for a grating 有权
    光栅温度控制系统

    公开(公告)号:US06643430B2

    公开(公告)日:2003-11-04

    申请号:US09891334

    申请日:2001-06-27

    IPC分类号: G02B634

    摘要: A temperature control device for controlling temperature variable devices disposed near a grating of a variable dispersion equalizer including an optical waveguide having the grating. The temperature variable devices control temperatures independently of each other. The temperature control device includes a controller for controlling the temperature variable units, and a storage device which stores temperature control patterns including combinations of control signals for the respective temperature variable units. The controller controls the temperature variable devices with a control signal of at least one of the temperature control patterns selected from the storage device.

    摘要翻译: 一种温度控制装置,用于控制设置在包括具有该光栅的光波导的可变色散均衡器附近的温度可变装置。 温度可变装置相互独立地控制温度。 温度控制装置包括用于控制温度可变单元的控制器,以及存储包括各个温度可变单元的控制信号的组合的温度控制模式的存储装置。 控制器使用从存储装置中选择的至少一个温度控制模式的控制信号来控制温度可变装置。