更高的载波频率允许更快传输新兴应用所需的大量数据。我国开展太赫兹(THz) 通信研究，对于抢占带宽资源，拓展无线通信带宽，具有非常高的战略意义。紧凑的、高纯度亚太赫兹通信发射器是实现太赫兹通信的关键技术。本项目将通过对互注入光子集成半导体激光器（ML-PISL）高速亚太赫兹波发射器及其相关非线性动力学的实验观察，弄清ML-PISL 产生亚太赫兹波的动力学过程；在现有ML-PISL的理论体系的基础上提出适合于高速亚太赫兹调制产生的非线性动力学理论模型；探明影响ML-PISL调制产生亚太赫兹波的关键因素和优化路径，探寻ML-PISL调制产生亚太赫兹波的相关物理机制；在较完整理论和大量实验观察基础上，提出优化的ML-PISL设计方案，研发性能更强的ML-PISL器件。通过该项目的研究，我们希望能在高速率亚太赫兹通信的基础性科学方面做出具有原创性工作，提供核心技术，提升我国在该领域的核心竞争力。

Higher carrier frequency allows faster transmission of large amounts of data required by emerging applications. To preempt the bandwidth resources, and to expand the bandwidth of wireless communication, researches to terahertz (THz) communications being carried out in our country are with high strategic significance. Compact, high purity sub-THz communications transmitter is the key technology to realize THz communication. Therefore, we propose this project application to carry out a systematic investigation on the photonic integrated sub-THz wave sources. Firstly, through experimental investigation of sub-THz modulated generation and related various nonlinear dynamics in mutual injection photonic integrated semiconductor laser (ML-PISL), dynamics process of sub-THz wave modulated generation will be clarified. Secondly, a reasonable theoretical mode will be constructed to describe the nonlinear dynamics of ML-PISL. Next, the optimal design of ML-PISL will be proposed, and more powerful ML-PISL devices will be manufactured. Thirdly, based on the theoretical analysis and experimental investigation, the key impact factors and the optimal regulation way of ML-PISL will be explored. Finally, the accurate regulation of ML-PISL transmitter will be realized experimentally. By carrying on this project, we hope to achieve some breakthroughs in the basic research of high-rate sub-THz communication, and provide core technological support for the development of related important fields.