The interrelation between the signs of the birefringence in the planes of symmetry can be deduced from the index ellipsoid. 各对称面的双折射符号之间的相互关系,可以从标准椭球体推定。
The holey fibers and their birefringence characteristics are reviewed in this paper. 本文主要对多孔光纤以及其双折射特性研究情况进行总结。