中国激光, 2011, 38 (s1): s105008, 网络出版: 2011-11-23
侧边抛磨光子晶体光纤的光学特性
Optical Properties of Side-Polished Fiber with Two-Dimensional Photonic Crystal Lattice
传感器 光学特性 时域有限差分法 光子晶体光纤 抛磨深度 sensors optical properties finite-different time-domain photonic crystal fiber side-polished depth
摘要
建立了一种侧边抛磨光子晶体光纤(SP-PCF)的光学模型,通过数值仿真和实验研究了这种侧边抛磨光子晶体光纤在不同抛磨厚度和不同环境介质折射率条件下的光学特性。实验结果表明,存在一个抛磨敏感区域,当抛磨深度在敏感区域内变化时,光子晶体光纤(PCF)的基模有效折射率随着环境介质折射率的改变而发生明显变化。这种侧边抛磨光子晶体光纤可以作为一种环境折射率敏感的传感器,有望在微型生物或化学传感方面得到应用。
Abstract
An optical model of side-polished photonic crystal fiber (SP-PCF) is presented firstly, then simulations and experiments are carried out to investigate the optical characteristics of the SP-PCF under different conditions, i.e., different side-polished depths and different covered materials. The results of both the simulations and the experiments show that there exists a side-polished sensitive area. When the polished depth is changing in the area, the refractive index of the covered material has obvious influence on the the effective refractive index of fundamental mode of the SP-PCF. According to the results, SP-PCF could be used as ambient refractive index sensor, and it has potential applications as miniature bioorchemical sensors.
王闵, 代吉祥, 杨明红. 侧边抛磨光子晶体光纤的光学特性[J]. 中国激光, 2011, 38(s1): s105008. Wang Min, Dai Jixiang, Yang Minghong. Optical Properties of Side-Polished Fiber with Two-Dimensional Photonic Crystal Lattice[J]. Chinese Journal of Lasers, 2011, 38(s1): s105008.