Title: Polarization keeping optical fibre axis fixing method based on space diffracting light and device thereof
Application Number: 200610122819 Application Date: 2006.10.19
Publication Number: 1949006 Publication Date: 2007.04.18
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G02B6/02;G02B6/10;G02B6/24;G01M11/00
Applicant(s) Name: Jinan Univ. Address:
Inventor(s) Name: Chen Zhe;Zhang Rongfeng;Liu Linhe;Pan Hao;Bai Chun
Attorney & Agent: heshu zhen
Abstract:
    The invention relates to polarization maintaining optical fiber axle fixing method based on space diffracted light. It collects back diffraction image of the space diffracted light to solve the problem of polarization maintaining optical fiber axle fixing, fixes the axle based on diffraction image characteristic quantity of which length, central position, and appearance are changed along with the rotating of the polarization maintaining optical fiber, or center image characteristic quantity of which change is more sensitive then the former. All of the parameters can be used as azimuth judging characteristic quantity. In addition the appearances of the diffraction image and center image have no symmetry at most positions which can be used to judge the azimuth of the polarization maintaining optical fiber polarizing axle more sensitively. The invention also relates to the adopted device, can more quickly search polarization maintaining optical fiber azimuth to increase axle fixing speed and precision.
Time: 9