基于半导体材料微纳波导全光逻辑门的研究进展

全光逻辑门是全光计算以及全光信号处理系统中关键的光子器件.随着互补金属氧化物半导体(COMS)工艺的发展,基于半导体材料微纳波导全光逻辑门已经成为集成光学领域中的重要方向;尤其是硅基光子集成器件在近些年成为了国际研究热点.文章主要对基于绝缘体上的硅(SOD)和Ⅲ-Ⅴ族化合物材料不同波导结构(马赫-曾德尔干涉仪(Mach-Zehnder interferometer)微环谐振腔和条形波导结构)的全光逻辑门的研究进展进行了介绍,并且在器件的工作速率和功耗方面,分别对上述基于SOI和Ⅲ-Ⅴ族化合物材料三种不同波导结构的全光逻辑门进行了分析和比较.

ALL-optical logic gates based on micro-nanometer semiconductor waveguides

All-optical logic gates are key photonics devices in all-optical computing and signal processing systems.With the development of CMOS techniques,all-optical logic gates based on micro-nanometer semiconductor waveguides have become an important research field in integrated photonics.In particular,silicon-based integrated photonic devices have attracted great attention.We shall describe various kinds of all-optical logic gates based on silicon-on-insulator and Ⅲ-Ⅴ group compounds,which have three different waveguide structures,namely,the Mach-Zehnder interferometer,microring resonator and strip waveguide.An analysis and comparison of these logic gates with regard to operation speed and power dissipation will be presented