中文摘要：

以便与独立于波长的敲击长度设计双折射的有穴的纤维，不对称的结构被介绍减少它的波长敏感。形式的 birefringence 上的结构的参数的影响计算、分析。在优化参数以后，敲击长度的一条扁平的分散曲线被获得。敲击长度从 1.1 m 在波长范围从 89.8 公里改变到 91.0 公里，到 1.7 m，并且它的相对变化是 1.38% 。如果这纤维被转变为零顺序的季度波浪板，阶段延期能容易被控制在(90

英文摘要：

In order to design birefringent holey fiber with beat-length independent of wavelength, an asymmetric structure is introduced to reduce its wavelength-sensitivity. The influence of structural parameters on the modal birefringence is calculated and analyzed. After optimizing the parameters, a flat dispersion curve of beat-length is obtained. The beat-length changes from 89.8 mm to 91.0 mm in wavelength range from 1.1 μm, to 1.7μm, and its relative variation is 1.38%. If this fiber is made into zero-order quarter wave plate, the phase delay can be easily controlled in （90±1）°.