物理学报Issue(24)：244202-1-244202-7,7.DOI:10.7498/aps.62.244202
新型超宽带双芯光子晶体光纤偏振分束器的研究
Novel ultra-broadband polarization beam splitter based on dual-core photonic crystal fiber
摘要
Abstract
A novel broadband polarization beam splitter (PBS) based on dual-core photonic crystal fiber is proposed. With a full-vector finite element method, the effects of structural parameters of fiber on the bandwidth and length of PBS are systematically investigated in detail. Numerical results indicate that an increase in the index of fluorine-doped region can not only broaden the bandwidth but also shorten the length of PBS. An increase in the diameters of air hole and hole pitch in an optical fiber can broaden the bandwidth of PBS, however, lengthen the length of PBS at the same time. Thus, it is necessary to balance the bandwidth and length of PBS when selecting the fiber structure parameters. Through optimizing the fiber structure parameters mentioned above, a kind of ultra-broadband PBS is achieved. When the extinction ratio is greater than 20 dB, the length of PBS is as short as 7.362 mm and its bandwidth is more than 600 nm.关键词
光子晶体光纤/偏振分束器/超宽带/全矢量有限元法Key words
photonic crystal fiber/polarization beam splitter/ultra-broadband/full-vector finite element method引用本文复制引用
韩博琳,娄淑琴,鹿文亮,苏伟,邹辉,王鑫..新型超宽带双芯光子晶体光纤偏振分束器的研究[J].物理学报,2013,(24):244202-1-244202-7,7.基金项目
国家自然科学基金(批准号:61177082,61205074)和北京市自然科学基金(批准号:4122063)资助的课题.@@@@Project supported by the National Natural Science Foundation of China (Grant Nos.61177082,61205074) and the Natural Science Foundation of Beijing, China (Grant No.4122063) （批准号:61177082,61205074）
