Characterization of birefringence dispersion in polarization-maintaining fibers by use of white-light interferometry.
Characterization of birefringence dispersion in polarization-maintaining fibers by use of white-light interferometry.
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DOI：
10.1364/ao.46.004073
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发表时间：
2007-07
期刊：
影响因子：
1.9
通讯作者：
Feng Tang;Xiang-zhao Wang;Yimo Zhang;Wencai Jing
中科院分区：
文献类型：
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作者：
Feng Tang;Xiang-zhao Wang;Yimo Zhang;Wencai Jing
提出了一种高灵敏度、高精度测量保偏光纤双折射色散的新方法。该方法利用保偏光纤的两个正交偏振模式之间的白光干涉。首先标定光纤的群双折射。然后通过分析不同光纤长度下干涉图的展宽情况，得到了双折射色散及其沿沿着的变化规律。分析了误差的主要来源。测量了两种PANDA光纤在工作波长处的双折射色散分别为0.011ps/（km nm）和0.018ps/（km nm）。测量重复性达到0.001 ps/（km nm）。
A new method for measuring the birefringence dispersion in polarization-maintaining fibers (PMFs) with high sensitivity and accuracy is presented. The method employs white-light interferences between two orthogonally polarized modes of PMFs. The group birefringence of the fiber is calibrated first. Then the birefringence dispersion and its variation along different fiber sections are acquired by analyzing the broadening of interferograms at different fiber lengths. The main sources of error are investigated. Birefringence dispersions of two PANDA fibers at their operation wavelength are measured to be 0.011 ps/(km nm) and 0.018 ps/(km nm). A measurement repeatability of 0.001 ps/(km nm) is achieved.