Fiber optic devices having volume Bragg grating elements

    公开(公告)号:US20060215972A1

    公开(公告)日:2006-09-28

    申请号:US11397663

    申请日:2006-04-03

    IPC分类号: G02B6/44

    摘要: Apparatus and methods for controlling the spectral shape of a Bragg grating element (“VBG”) filter are disclosed. An optical system can be adapted to deliver a recording beam to the front focal plane of a lens. The recording beam may cause to be formed, in the front focal plane of the lens, an optical distribution that represents the desired filter response of the VBG element. A recording medium sample may be placed in the back focal plane of the same lens. The lens creates a true Fourier transform of the distribution in the optical plane directly on the recording medium. Via coherent interference with the plane reference wave, both the amplitude and the phase of the Fourier transform are transferred to the amplitude and phase envelope of the VBG imprinted on the recording material. A mask representing the desired filter shape may be placed in the front focal plane of the lens. The recording beam may be shone through the mask, such that a masked recording beam exits the mask in the front focal plane of the lens. The masked recording beam may represent the desired filter response of the VBG element.

    Fiber optic devices having volume bragg grating elements
    16.
    发明申请
    Fiber optic devices having volume bragg grating elements 有权
    具有体积布拉格光栅元件的光纤设备

    公开(公告)号:US20050265657A1

    公开(公告)日:2005-12-01

    申请号:US11173359

    申请日:2005-07-01

    IPC分类号: G02B6/42 G02B5/32 G02B6/34

    摘要: Fiber optic devices including volume Bragg grating (VBG) elements are disclosed. A fiber optic device may include one or more optical inputs, one or more VBG elements, and one or more optical receivers. Methods for manufacturing VBG elements and for controlling filter response are also disclosed. A VBG chip, and fiber optic devices using such a chip, are also provided. A VBG chip includes a monolithic glass structure onto which a plurality of VBGs have been recorded.

    摘要翻译: 公开了包括体积布拉格光栅(VBG)元件的光纤设备。 光纤设备可以包括一个或多个光输入,一个或多个VBG元件和一个或多个光接收器。 还公开了制造VBG元件和控制滤波器响应的方法。 还提供了VBG芯片和使用这种芯片的光纤设备。 VBG芯片包括其上记录有多个VBG的单片玻璃结构。