Park Insu, Lee Hyun-Sik, Kim Hyun-Jun, Moon Kyung-Mi, Lee Seung-Gol, O Beom-Hoan, Park Se-Geun, Lee El-Hang
Opt Express. 2004 Jul 26;12(15):3599-604. doi: 10.1364/opex.12.003599.
We propose a new power-splitting scheme in two-dimensional photonic crystals that can be applicable to photonic integrated circuits. The proposed power-splitting mechanism is analogous to that of conventional three-waveguide directional couplers, utilizing coupling between guided modes supported by line-defect waveguides. Through the analysis of dispersion curve and field patterns of modes, the position in propagation direction, where an input field is split into a two-folded image, is determined by simple mode analysis. Based on the calculated position, a photonic crystal power-splitter is designed and verified by finite-difference timedomain computation.
我们提出了一种适用于光子集成电路的二维光子晶体中的新型功率分配方案。所提出的功率分配机制类似于传统的三波导定向耦合器，利用线缺陷波导所支持的导模之间的耦合。通过对模式的色散曲线和场模式进行分析，通过简单的模式分析确定输入场在传播方向上被分成两个折叠图像的位置。基于计算出的位置，设计了一种光子晶体功率分配器，并通过时域有限差分计算进行了验证。
