Time-domain beam propagation method for nonlinear optical propagation analysis and its application to photonic Crystal circuits
Time-domain beam propagation method for nonlinear optical propagation analysis and its application to photonic Crystal circuits
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DOI：
10.1109/jlt.2004.824457
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发表时间：
2003-06
影响因子：
4.7
通讯作者：
T. Fujisawa;M. Koshiba
中科院分区：
文献类型：
--
作者：
T. Fujisawa;M. Koshiba
提出了一种基于有限元格式的时域光束传播方法，用于非线性光传播分析。为了获得稳态解，还描述了一种连续波激励方法。通过自聚焦导向现象和非线性光栅的数值算例验证了该方法的有效性。此外，该方法还可用于表征非线性光子晶体电路。具体而言，提出了一种用于改变光在光子晶体波导内传播特性的光栅结构和一种包括非线性棒的桩状结构，并研究了其作为光限制和开关器件的潜力。
A time-domain beam propagation method (BPM) based on a finite-element scheme is newly formulated for nonlinear optical propagation analysis. In order to obtain steady-state solutions, a way of continuous-wave (CW) excitation is also described. The validity of this method is verified by numerical examples: self-focusing guiding phenomena and nonlinear gratings. Furthermore, this approach is also applied to characterizing nonlinear photonic crystal circuits. Specifically, a grating structure designed to modify the characteristics of light propagating within a photonic crystal waveguide and a stub-like structure including nonlinear rods are proposed, and the potential for use as optical limiting and switching devices is investigated.