Tang Feng, Wang Xiang-Zhao, Zhang Yimo, Jing Wencai
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, China.
Opt Lett. 2006 Dec 1;31(23):3411-3. doi: 10.1364/ol.31.003411.
A new method to measure the birefringence dispersion in high-birefringence polarization-maintaining fibers is presented using white-light interferometry. By analyzing broadening of low-coherence interferograms obtained in a scanning Michelson interferometer, the birefringence dispersion and its variation along different fiber sections are acquired with high sensitivity and accuracy. 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), respectively. Distributed measurement capability of the method is also verified experimentally.
提出了一种利用白光干涉测量高双折射保偏光纤中双折射色散的新方法。通过分析在扫描迈克尔逊干涉仪中获得的低相干干涉图的展宽，以高灵敏度和高精度获取双折射色散及其沿不同光纤段的变化。测量了两根熊猫型光纤在其工作波长处的双折射色散，分别为0.011 ps/(km·nm)和0.018 ps/(km·nm)。该方法的分布式测量能力也通过实验得到了验证。
