Fabrication and phase tuning of an optical waveguide device
    2.
    发明授权
    Fabrication and phase tuning of an optical waveguide device 失效
    光波导器件的制作和相位调谐

    公开(公告)号:US5195163A

    公开(公告)日:1993-03-16

    申请号:US766939

    申请日:1991-09-27

    IPC分类号: G02B6/122 G02B6/125 G02F1/225

    摘要: The manufacture of an optical waveguide device utilizing a fast, accurate method for tuning of the output phase angle of such devices to a desired operating point. Tuning is accomplished by adjusting the accumulated phase along a waveguide arm of the device by removing optical waveguide material using laser ablation. Due to the change in waveguide geometry in the ablated region, the optical phase velocity is changed and thus the optical path length is affected in that section of waveguide, thereby resulting in a change in output phase angle.

    摘要翻译: 使用用于将这些装置的输出相位角调谐到期望的操作点的快速,精确的方法的光波导装置的制造。 通过使用激光烧蚀去除光波导材料来调节沿器件的波导臂的累积相位来实现调谐。 由于烧蚀区域中的波导几何形状的变化,光相位速度发生变化,因此光路长度受波导区域的影响,从而导致输出相位角的变化。