下一代非易失性硅基集成光开关探讨  

Next Generation Nonvolatile Silicon Integrated Optical Switch

作　　者：周林杰[1] ZHOU Linjie(Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学,上海200240

出　　处：《中兴通讯技术》2020年第2期70-73,共4页ZTE Technology Journal

摘　　要：针对硅波导采用热光或载流子色散效应折射率调节范围小、功耗高且具有易失性的缺点,提出一种基于相变材料的硅波导调节方法。相变材料具有至少两种稳定状态,折射率差别巨大,而且状态的保持不需要外加电压来维持,具有非易失特性;因此,硅与相变材料混合集成可以有效克服硅基光电子本身的物理限制,能应用于高密度、低功耗、大规模集成光开关芯片中。In view of the shortcomings of using thermo-optic or free-carrier plasma dispersion effect to achieve refractive index modulation of silicon waveguide,such as small tuning range,high power consumption and volatility,a method based on phase change materials is proposed.Phase change materials have at least two stable states.The refractive index has a large change upon phase change,and moreover,maintaining the state does not require an external voltage,exhibiting non-volatile characteristics.Therefore,the hybrid integration of silicon and phase change materials can effectively overcome the physical limitations of current silicon photonic devices,and can be applied to high-density,low-power,large-scale integrated optical switch fabrics.

关 键 词：硅基光电子 相变材料 混合集成光电子 光开关 

分 类 号：TN929.1[电子电信—通信与信息系统]