光子晶体光纤拉制中工艺参数的控制  

Control of the fabrication parameters during the fabrication of photonic crystal fibers

作　　者：郭铁英[1,2] 娄淑琴[1,2] 李宏雷[1,2] 简水生[1,2] 

机构地区：[1]全光网络与现代通信网教育部重点实验室,北京100044 [2]北京交通大学光波技术研究所,北京100044

出　　处：《物理学报》2009年第9期6308-6315,共8页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:60777033);教育部重点项目(批准号:308002)资助的课题~~

摘　　要：分析了光子晶体光纤拉制中各工艺参数之间的相互影响,建立了工艺参数与最终光纤结构之间的对应关系.在温度和送料速度的协调控制下,通过调节气压参数可有效控制气孔结构.实验拉制出孔径孔距比分别为0.45和0.8的单模以及高占空比光子晶体光纤.在制备非均匀孔径光子晶体光纤时,仅靠调控工艺参数往往难以拉制出理想结构,本文以一种单偏振单模PCF结构为例,对预制棒结构进行了优化设计.计算表明可由此拉制出满足要求的光子晶体光纤.The interplay between the fabrication parameters during the fabrication of photonic crystal fibers（PCF） are numerically analyzed. Relation between these parameters and the final fiber＇ s geometry is identified. With the cooperative control of drawing temperature and feed speed, the final hole structure can be effectively controlled by tuning the applied pressure. A single-mode PCF with its d/∧ approaching 0.45, and a PCF with high air-filling fraction, whose d/∧ equals 0.8, are successfully fabricated. For fabrication of PCFs with uneven-sized holes, parameter control alone is sometimes inadequate in achieving the desired geometry. Taking a single-polarization single-mode （SPSM） PCF structure as example, the preform＇ s geometry is redesigned for optimization by inverse calculation. And the required SPSM PCF can thus be fabricated.

关 键 词：光子晶体光纤 工艺参数 气压控制 气孔结构 

分 类 号：TN253[电子电信—物理电子学] TM621.6[电气工程—电力系统及自动化]