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光子晶体光纤斜切技术

Angle Cutting Technology of Photonic Crystal Fiber
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摘要 为了避免光子晶体光纤(photonic crystal fiber,PCF)在制备斜端面过程中空气孔的阻塞,基于断裂力学和材料力学原理,对PCF的斜切参数给出了一种力学解释,推导了PCF的加载扭转角和端面斜角的关系.优化设计并升级了斜切系统,实现了0°~10°的PCF端面斜角切割,并对切割质量进行了评价.对不同端面斜角PCF降低背向反射的效果进行了测试,结果表明大于8°的端面斜角可有效降低背向反射.使用电荷耦合器件图像传感器(chargecoupleddevice,CCD)系统对PCF的端面进行观测,斜切系统切割的PCF端面空气孔没有被阻塞,实现了在不破坏光纤结构情况下的端面斜切. To avoid the blockage of air holes in the photonic crystal fiber(PCF)during the oblique end face preparation process,a mechanical explanation for the parameter setting of PCF angle cutting was given,based on the principle of fracture mechanics and material mechanics.The relationship of the torsion angle and the endface angle was derived.The angle cutting system was optimized and upgraded,and the endface angle cutting was realized from 0°to 10°.The cutting quality was also evaluated.The effect of reducing back reflection by different endface angles was tested,in which the results show that the angle of>8°reduces the back reflection effectively.The endface of PCF was observed by a charge coupled device(CCD)system.The air holes of the endface cut by the angle cutting system were not blocked,which indicates that this method is qualified.
作者 吕炎 王子垚 杨远洪 李帅 张振宇 LüYan;WANG Ziyao;YANG Yuanhong;LI Shuai;ZHANG Zhenyu(College of Mechanical Engineering and Applied Electronics Technology,Beijing University of Technology,Beijing 100124,China;School of Instrumentation and Optoelectronic Engineering,Beihang University,Beijing 100191,China)
出处 《北京工业大学学报》 CAS CSCD 北大核心 2020年第2期132-139,共8页 Journal of Beijing University of Technology
基金 国家自然科学基金资助项目(U1637106,51505013)
关键词 光子晶体光纤 斜切系统 端面预处理 斜角切割 背向反射 空气孔 photonic crystal fiber(PCF) angle cutting system endface preparation angle cutting back reflection air holes
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