As a new type optical fiber,because of its particular optical properties,photonic crystal fibers(PCFs) have attracted the academic and industrial field widespread attention.So,the researches about PCFs have made great...As a new type optical fiber,because of its particular optical properties,photonic crystal fibers(PCFs) have attracted the academic and industrial field widespread attention.So,the researches about PCFs have made great progress in recent decade.In this paper,two kinds of PCFs constructions are numerically investigated and its leakage-loss properties are simulated.Based on the results of calculations,both the two types of PCFs are fabricated using glass capillary tube stacking.And the process of fiber drawing is described in this paper.展开更多
针对2.0~25.0μm波段传输的限制损耗问题,文章采用数值模拟方法研究影响碲基硫系光子晶体光纤(photonic crystal fiber,PCF)限制损耗的主要因素。光纤纤芯和包层材料采用Ge 20 As 20 Se 15 Te 45玻璃,通过改变纤芯直径、空气孔直径和空...针对2.0~25.0μm波段传输的限制损耗问题,文章采用数值模拟方法研究影响碲基硫系光子晶体光纤(photonic crystal fiber,PCF)限制损耗的主要因素。光纤纤芯和包层材料采用Ge 20 As 20 Se 15 Te 45玻璃,通过改变纤芯直径、空气孔直径和空气孔层数等参数进行2.0~25.0μm波段限制损耗的计算,结果表明,影响限制损耗的最大因素是纤芯直径,限制损耗随着纤芯直径和空气孔直径的增大而显著降低,随着空气孔层数的增加而降低;优化设计出一种低限制损耗的PCF,结果表明,当纤芯直径和节距为8.0μm、空气孔直径为7.2μm、包层空气孔层数为4时,该PCF在2.0~25.0μm波长范围的限制损耗低于1.4×10^(-6) dB/m,满足低损耗传输要求。文章研究结果对2.0~25.0μm波段光信号的传输具有一定的意义。展开更多
文摘As a new type optical fiber,because of its particular optical properties,photonic crystal fibers(PCFs) have attracted the academic and industrial field widespread attention.So,the researches about PCFs have made great progress in recent decade.In this paper,two kinds of PCFs constructions are numerically investigated and its leakage-loss properties are simulated.Based on the results of calculations,both the two types of PCFs are fabricated using glass capillary tube stacking.And the process of fiber drawing is described in this paper.
文摘针对2.0~25.0μm波段传输的限制损耗问题,文章采用数值模拟方法研究影响碲基硫系光子晶体光纤(photonic crystal fiber,PCF)限制损耗的主要因素。光纤纤芯和包层材料采用Ge 20 As 20 Se 15 Te 45玻璃,通过改变纤芯直径、空气孔直径和空气孔层数等参数进行2.0~25.0μm波段限制损耗的计算,结果表明,影响限制损耗的最大因素是纤芯直径,限制损耗随着纤芯直径和空气孔直径的增大而显著降低,随着空气孔层数的增加而降低;优化设计出一种低限制损耗的PCF,结果表明,当纤芯直径和节距为8.0μm、空气孔直径为7.2μm、包层空气孔层数为4时,该PCF在2.0~25.0μm波长范围的限制损耗低于1.4×10^(-6) dB/m,满足低损耗传输要求。文章研究结果对2.0~25.0μm波段光信号的传输具有一定的意义。
