Flavin Dãânal A, McBride Roy, Jones Julian D C
Opt Lett. 2002 Jun 15;27(12):1010-2. doi: 10.1364/ol.27.001010.
We present an interferometric technique for measurement of the dispersion of birefringence in polarization-maintaining fibers. The approach yields measurements over a broad spectral range from analysis of single interferograms obtained in a tandem inteferometer. The technique is demonstrated to measure first-, second-, and third-order dispersion of the differential propagation constant, corresponding to differential group delay (DGD) and its dispersion to second order; measurements are immune to asymmetry in the interferomgram that is being processed. The technique is further applied to measurement of the temperature dependence of DGD and its first-order dispersion.
我们提出了一种用于测量保偏光纤双折射色散的干涉测量技术。该方法通过分析在串联干涉仪中获得的单个干涉图，能在很宽的光谱范围内进行测量。实验证明，该技术可测量差分传播常数的一阶、二阶和三阶色散，分别对应差分群延迟（DGD）及其二阶色散；测量不受正在处理的干涉图不对称性的影响。该技术还进一步应用于测量DGD及其一阶色散的温度依赖性。
