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针对光子晶体光纤多零色散点、高双折射的应用要求, 设计了一种新型结构的光子晶体光纤, 其纤芯由位于菱形四个角上的圆形空气孔组成. 通过有限元数值分析方法对该种结构光子晶体光纤的色散特性和双折射特性进行数值仿真, 得到色散与波长、色散与纤芯圆孔尺寸、双折射与波长、双折射与纤芯圆孔尺寸的关系. 研究结果表明:在满足光纤传输功率要求的条件下, 光纤的双折射在d10.8 m 时的性能较好. 同时, 该种结构的光子晶体光纤在芯区直径满足d1=0.4 m或d1=0.6 m时会出现两个零色散点, 这对进一步研制具有多零色散点的光子晶体光纤具有重要的意义.Aiming at the requirements for multi-zero dispersion points and high birefringence of photonic crystal fibers, a new kind of photonic crystal fiber with rhombus air-core structure is composed of four air holes locate at four points of rhombus is proposed. By using the numerical analysis method based on the finite element, we simulate the dispersion and the birefringence characteristics of photonic crystal fiber, and obtain the relationships between dispersion and wavelength, dispersion and size of structure, birefringence and wavelength, birefringence and size of structure. Simulation results show that better birefringence can be obtained when the requirement of power is met. In addition, two zero dispersion points can be obtained when diameter d1 is 0.4 m or 0.6 m. The results are of significance for the further development of photonic crystal fiber with multi-zero dispersion points.
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Keywords:
- dispersion /
- birefringence /
- photonic crystal fibers /
- finite element method
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[1] Lei W,Thomas T A,Anders B 2010 Opt.Lett.35 1608
[2] Dong M,Chun Y G,Libo Y 2010 Appl.Opt.49 3748
[3] [4] [5] Jinchae K,Un-Chul P,Byeong H L 2006 Opt.Lett.31 1196
[6] Chen H M,Meng Q 2011 Acta Phys.Sin.60 014202 (in Chinese)[陈鹤鸣,孟晴 2011 60 014202]
[7] [8] Zhang Y N 2010 Acta Phys.Sin.59 4050 (in Chinese) [陈鹤鸣,孟晴 2011 59 4050]
[9] [10] Hou Y,Zhou G Y,Hou L T,Jiang L H 2010 Chin.J.Lasers 37 1068 (in Chinese) [侯宇,周桂耀,侯蓝田,姜凌红 2010\中国激光 37 1068]
[11] [12] [13] Li J,Gu Y H,Cai X B 2010 Opt.Commun.2 30 (in Chinese) [李洁,顾艳华,蔡祥宝 2010 光通信技术 2 30]
[14] Cui Y L,Hou L T 2010 Acta Phys.Sin.59 2571 (in Chinese) [崔艳玲,侯蓝田 2010 59 2571]
[15] [16] Li J H,Wang R,Wang J Y,Liu Y 2011 Opt.Eng.50 025001
[17] [18] [19] Wu W Q,Chen X W,Zhou H,Zhou K F,Lin X S,Lan S 2006 Acta Photonica Sin.35 109 (in Chinese) [吴维庆,陈雄文,周辉,周开锋,林旭升,兰胜 2006 光子学报 35 109]
[20] Giovanni T,Marco P,Thomas T A,Ander B,Paolo B 2007 J.Lighteave Technol.25 2522
[21] [22] Liu X Y 2007 Ph.D.Dissertation (Beijing:Beijing University of Posts and Telecommunications) (in Chinese) [刘小毅 2007 \博士学位论文 (北京:北京邮电大学)]
[23] [24] [25] Zhang F D 2007 Ph.D.Dissertation (Beijing:Beijing University of Posts and Telecommunications) (in Chinese) [张方迪 \2007 博士学位论文(北京:北京邮电大学)]
[26] Boris K,Gilles R,Daniel M 2003 Appl.Opt.42 634
[27] [28] [29] Zhang M Y,Li S G,Yao Y Y,Zhang L,Fu B,Yin G B 2010 Acta Phys.Sin.59 3278 (in Chinese) [张美艳,李曙光,姚艳艳,张磊,付博,尹国冰 2010 59 3278]
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