Li Shuguang, Zhang Xiaoxia, Agrawal Govind P
Key Laboratory of Metastable Materials Science and Technology, College of Science, Yanshan University, Qinhuangdao 066004, China.
Appl Opt. 2013 May 1;52(13):3088-93. doi: 10.1364/AO.52.003088.
We propose a kind of photonic crystal fiber (PCF) designed with an annular core and fabricated using a single material. Characteristics of such fibers, including the mode field distributions of both the core and cladding modes, the effective mode area of the fundamental core mode, and the dispersion profile, are investigated using the finite element method. The coupling between the fundamental mode and an excited core mode or cladding mode is discussed in order to apply the proposed design in mode-coupling devices. Results show that such a PCF may be suitable for both optical communications and optical sensing technologies.
我们提出了一种设计为环形纤芯且采用单一材料制造的光子晶体光纤（PCF）。利用有限元方法研究了这类光纤的特性，包括纤芯模式和包层模式的模场分布、基模纤芯模式的有效模面积以及色散分布。为了将所提出的设计应用于模式耦合器件，讨论了基模与激发的纤芯模式或包层模式之间的耦合。结果表明，这种光子晶体光纤可能适用于光通信和光学传感技术。
