INCREASED TOLERANCE POLARIZATION CONVERTERS
    2.
    发明公开
    INCREASED TOLERANCE POLARIZATION CONVERTERS 有权
    POLARISATIONSWANDLER MITERHÖHTERTOLERANZ

    公开(公告)号:EP2788802A1

    公开(公告)日:2014-10-15

    申请号:EP12801510.4

    申请日:2012-11-30

    IPC分类号: G02B6/27

    摘要: An optical polarization converter device includes a first polarization converter section [1100] and a second polarization converter section [1102], which have mirror image cross-sections of each other and which are made of a common material and have orientation (i.e., tilt) errors equal in magnitude and opposite in sign. Preferably, one section has half, the other one and a half times the length of an original (single section, non-tolerant) polarization converter, i.e., the lengths of the two sections have a ratio of 1:3. Other embodiments include length ratios of 3:5 and 5:7. In addition to correcting fabrication errors, the polarization converter also corrects errors due to temperature and wavelength, improving the tolerance with respect to operational conditions.

    摘要翻译: 光偏振转换器装置包括第一偏振转换器部分[1100]和第二偏光转换器部分[1102],第一偏振转换器部分[110]和第二偏光转换器部分[1102]具有彼此的镜像横截面并且由普通材料制成并且具有取向(即倾斜) 误差大小相等,符号相反。 优选地,一个部分具有一半,另一个是原始(单段,非耐受)极化转换器的长度的一倍,即两个部分的长度具有1:3的比率。 其他实施方案包括3:5和5:7的长度比。 除了校正制造误差之外,偏振转换器还校正由于温度和波长引起的误差,从而提高了相对于操作条件的公差。