Ge_(30)Sb_8Se_(62)硫系玻璃的制备及其10.6μm低损耗空芯光子带隙光纤的设计  

Preparation of Ge_(30)Sb_8Se_(62) Chalcogenide Glass and Designing for a Low-Loss Hollow-Core Photonic Crystal Fiber at 10.6μm

作　　者：刘永兴[1] 张培晴[1] 许银生[1] 王训四[1] 戴世勋[1] 聂秋华[1] 徐铁峰[1] 

机构地区：[1]宁波大学信息科学与工程学院红外材料与器件实验室,浙江宁波315211

出　　处：《光学学报》2012年第10期182-187,共6页Acta Optica Sinica

基　　金：国家科技部重大国际合作项目(2001DFA12040);国家973计划项目子课题(2012CB722703);国家自然科学基金(61177087;61107047);教育部新世纪优秀人才项目(NCET-10-0976);浙江省自然科学基金项目(LQ12F05004);浙江省杰出青年基金项目(R1101263);宁波市新型光电功能材料及器件创新团队项目(2009B21007);宁波大学王宽诚幸福基金资助课题

摘　　要：硫系玻璃光子晶体光纤在中远红外激光传输领域具有广阔的应用前景。制备了红外波段具有优良透过特性的Ge30Sb8Se62硫系玻璃,并以此为基质材料设计了一种适合于高功率中红外激光传输的带隙型光子晶体光纤。利用平面波展开法和有限元法分析了不同结构下该光纤的光子带隙、模场面积和限制损耗特性。通过优化光纤的结构参数,获得了在10.6μm处限制损耗小于0.1dB/m的大模场(模场面积大于100μm2)光子晶体光纤。Chalcogenide glass photonic crystal fiber is expected to have important applications in the field of mid- infrared laser transmission. The Ge30 Sb8 Se62 chalcogenide glass with excellent transparency in mid-infrared region is prepared. Based on this chalcogenide glass, a band-gap photonic crystal fiber is designed, which suits high power laser transmission. With plane wave expansion method and finite element method, photonic band gap, mode-field area and confinement loss of the designed photonic crystal fiber are systematically studied. By optimizing the structural parameters of fiber, photonic crystal fiber with confinement loss less than 0.1 dB/m and effective mode-field area larger than 100μm^2 at 10.6 μm is obtained.

关 键 词：光纤光学 硫系玻璃 光子晶体光纤 红外激光传输 低损耗 

分 类 号：TN253[电子电信—物理电子学]