中国激光, 2011, 38 (9): 0905006, 网络出版: 2011-09-02
扩芯拉锥技术对光子晶体光纤合束器性能的改善
Improved Performance of PCF Combiners with Expanded Core-Tapered Technology
光纤光学 光子晶体光纤 选择性空气孔塌缩 合束器 拉锥 传输损耗 fiber optics photonic crystal fiber controlled hole collapse combiners taper transmission loss
摘要
设计了一种新型的光子晶体光纤(PCF)合束器,利用光子晶体光纤的后处理技术塌缩纤芯周围的三圈空气孔使纤芯直径增大,再对PCF合束器进行熔融拉锥,将多路熔融拉锥后的光子晶体光纤熔接到一路多模光纤作为输出端。通过数值模拟计算得到:扩芯拉锥PCF合束器在入射不同波长时的轴向损耗远小于直接拉锥PCF合束器。
Abstract
A novel design of photonic crystal fiber (PCF) combiners is demonstrated. First, collapse three rings of air holes near to the fiber core using the post-processing techniques of PCFs, to enlarge the core. Then, taper it. Finally, splice the tapered multi-photonic crystal fibers into a multimode fiber for output. The axial losses of the directly tapered combiners and the expanded core-tapered combiners at different incident wavelengths are simulated and compared. The results show that the transmission losses of the expanded core-tapered combiners are far below those of the combiners without using the technology.
周航, 陈子伦, 李杰, 侯静, 陈金宝. 扩芯拉锥技术对光子晶体光纤合束器性能的改善[J]. 中国激光, 2011, 38(9): 0905006. Zhou Hang, Chen Zilun, Li Jie, Hou Jing, Chen Jinbao. Improved Performance of PCF Combiners with Expanded Core-Tapered Technology[J]. Chinese Journal of Lasers, 2011, 38(9): 0905006.