基于相干完全吸收器全光调制的基础研究

All-optical modulation is the key technology in both all-optical network and optical integration. Practical all-optical modulation methods should meet rigid requirement such as low-power inputs, high speed and integratable. In this proposal, we aim bring in the idea using coherent perfect absorber insides high-Q optical microcavity with second-order nonlinearity to achive efficient optical signal wavelength conversion and high-speed optical modulation. Meanwhile, we will seek new micro-fabrication methods to process the key nonlinear crystal material in order to fabricate high-Q microcavity. We hope to demostrate nonlinear coherent perfect absorber for the first time inside high-Q resonator and achieve high-speed all-optical modulations for all-optical networks, photonics integration and quantum information applications.

全光调制作为光通讯系统与全光集成的核心技术一直是信息领域的研究焦点.针对制作可实用化全光调制器件的低功率、高速、可集成等要求, 本课题拟在基于新型的光学相干完全吸收器的原理，在二阶非线性光学微腔中实现高效波长信号转换及高速的全光调制.以此为目标，探索出一套新型针对二阶非线性晶体材料的微加工关键技术，完备制作高品质光学微腔的关键方法制作核心器件，为全光片上集成和光通讯的应用打下基础。本课题有望首次在光学微腔中实验验证非线性光学混频过程的反演, 所研究的二阶非线性光学微腔可以被拓展至全光通讯、光集成及光量子信息领域。