Heterogeneous integration for highly functional silicon photonic circuits

硅光子学已成为未来光子集成系统中最有前途的材料平台。由于其CMOS兼容性，它将使芯片的开发在非常大的体积和前所未有的复杂性和功能水平。然而，硅晶体的间接带隙和立方对称性导致其在电信波长的光发射非常差，缺乏波克尔斯效应和低效的非线性过程。该项目将通过异质技术的发展来解决这些限制，这些技术将在硅光子芯片上集成III-V半导体、石榴石和复杂的氧化物。最终的演示将包括集成激光器和探测器的设备，非常低能量的光调制器，更有效的光学非线性和片上偏振操作能力。本研究项目将在光电子研究小组进行，由从事光子集成和硅光子学研究超过15年的Marc Sorel教授指导。

Silicon photonics has emerged as the most promising material platform for future photonic integrated systems. Thanks to its CMOS compatibility, it will enable the development of chips over very large volumes and with unprecedented level of complexity and functionality. However, the indirect bandgap and the cubic symmetry of the silicon crystal lead to very poor light emission, lack of Pockels effect and inefficient non-linear processes at telecom wavelengths.This project will address these limitations through the development of heterogeneous technologies that will integrate III-V semiconductors, garnets and complex oxides on silicon photonic chips. Final demonstrators will include devices with integrated lasers and detectors, very low-energy optical modulators, more efficient optical non linearities and on-chip polarisation manipulation capabilities.This research project is to be carried out in the Optoelectronics research group under the supervision of Prof. Marc Sorel who has been engaged in research concerning photonic integration and silicon photonics for over 15 years.