光的传输与调控是光子集成器件发展的重要基础，光子晶体作为一种新型的光学功能材料，在光操控上有着巨大的潜力。与传统的基于实空间光场叠加原理和倒空间固体能带色散理论的光场调控思想不同，受凝聚态物理中拓扑相概念启发，通过在光子晶体的能带系统研究中引入拓扑相能够提供新颖的光场调控机制和丰富的输运以及光操控性质，如高维度的光场调控等。文中分别从非厄米光子体系和拓扑光子学体系两个方面综述了近年来笔者所在的课题组所取得的研究成果。首先，回顾了光学拓扑研究和光学非厄米研究的背景；其次，介绍了在高阶光子拓扑绝缘体、高阶量子自旋霍尔效应、光子晶体的拓扑场局域以及非厄米体系拓扑光传输等领域的研究进展；最后，对研究结果在相关领域如光量子计算、光通信等的应用发展趋势进行了总结与展望。

Optical transmission and regulation is an important basis for the development of photonic integrated devices. As a new optical functional material, photonic crystals have great potential in optical manipulation. Inspired by the concept of topological phase in condensed matter physics, the introduction of topological phase in photonic crystal energy band system research breaks through the traditional light field regulation ideas based on the superposition principle of real space light field and the inverse space solid energy band dispersion theory, and provides a novel light field regulation mechanism, rich transport and light control properties, such as high dimensional light field regulation. In this paper, the research achievements of the research group in recent years were reviewed from two aspects: non-Hermitian photon system and topological photonics system. Firstly, the background of optical topology research and optical non-hermitic research was reviewed. Then, the research progress in the fields of high-order photonic topological insulators, high-order quantum spin hall effect, topological field local area of photonic crystals and topological optical transmission in non-Hermitical systems were introduced. In the end, the development trend of the research results in related fields such as optical quantum computing and optical communication was summarized and prospected.