[简介] 针对低轨卫星网络空口传输特征，在地面5G NR体制的基础上利用智能化网络与轻量化终端间的协同，实现用户的广域无感接入与适变传输。梳理了低轨卫星网络空口传输关键技术，认为需要采用内生智能的方法辅助空口设计，从空口赋能AI和AI辅助空口两个方面构建完整闭环的研究体系，最后展望了未来低轨卫星网络的研究趋势。

[简介]提出了多视角大景深高精度3D视觉传感技术。运用高清数字光处理（DLP）结构光投影技术和高速高分辨工业相机，从板级集成电路设计、控制驱动软件研发、3D点云重建与处理算法等方面深入研究，自主研发亚微米级/低成本多视角大景深高精度3D视觉测量技术。主要包括：采用高分辨率、高帧率的工业摄像机，实现高精度的三维重建；采用多波长相位扩展法，实现高精度的相位计算；利用多工业摄像机解决视场隐藏，扩大了三维重构视场，最终实现了0.48μm Z轴的重复精度。

[Introduction] A solar-blind multi-quantum well (MQW) structure wafer based on AlGaN materials is growth by metal-organic chemical vapor deposition (MOCVD). The monolithically integrated photonic chips including light-emitting diodes (LEDs), waveguides, and photodetectors (PDs) are presented. The results of the finite-difference time-domain (FDTD) simulation confirm the strong light constraint of the waveguide designed with the triangular structure in the optical coupling region. Furthermore, in virtue of predominant ultraviolet transverse magnetic (TM) modes, the solar blind optical signal is more conducive to lateral transmission along the waveguide inside the integrated chip. The integrated PDs demonstrate sufficient photosensitivity to the optical signal from the integrated LEDs. When the LEDs are operated at 100 mA current, the photo-to-dark current ratio (PDCR) of the integrated PD is about seven orders of magnitude. The responsivity, specific detectivity, and external quantum efficiency of the integrated self-driven PD are 74.89 A/W, 4.22×1013 Jones, and 3.38×104%, respectively. The stable on-chip optical information transmission capability of the monolithically integrated photonic chips confirms the great application potential in large-scale on-chip optical communication in the future.

[Introduction] With the advancement of photonic integration technology, ultra-low linewidth frequency-stabilized lasers have demonstrated significant potential in fields such as precision measurement, quantum communication, and atomic clocks. This review summarizes the latest developments in integrated photonics for achieving ultra-low linewidth lasers, particularly breakthroughs made through the integration of Brillouin lasers. We discuss the design principles, manufacturing processes, performance characteristics, and potential value of these lasers in various applications.