基于纳米光波导光场调控机制的双光路芯片原子钟关键技术研究

揭示纳米光波导受限空间光耦合传输特性及光调控机制，将有效促进微光学功能芯片的发展。芯片原子钟是典型微光学功能器件，是高精度、低功耗、小体积微导航定位授时系统（Micro-PNT）的核心，是恶劣条件、GPS卫星信号拒止状况下微小飞行载体精确导航与姿态控制的关键，对航空航天、深空探测以及小卫星、微型空间探测、武器精确制导等国家重大计划和重点工程的顺利推进将起到极其重要的作用。本项目提出基于SOI硅基光波导跨尺度光电一体化集成纳米光波导双光路芯片原子钟方案，针对纳米光波导光场偏振态调控、微气室中特定偏振态光与原子相互作用关键科学问题；揭示纳米光波导中局域光场偏振态有效调控和双光路芯片原子气室中光与原子相互作用机制；探索背景噪声可溯源方法及有效调控机理；利用现代微纳技术将MEMS和ASIC工艺相结合，实现电磁兼容条件下跨尺度芯片原子钟的一体化集成制造，同时带动相关学科的发展。

It is revealing and developing transmission characteristics and optical regulation mechanism of confined spatial optical coupling in nanoscale optical waveguides that can greatly promote the development of micro-optical functional chips. Chip-scale atomic clock (CSAC) is a typical micro-optical device. Besides, it is the core of high precision, low power and micro volume micro positioning, navigation and timing (Micro-PNT) system. What’s more, It is imperative that CSAC makes precise navigation and attitude control of micro flight vehicle under ill-being condition of GPS satellites, when we go through forests or geological disasters, come true. In addition to the tremendous strengths mentioned above, chip-scale atomic clock plays an essential role in successfully promotion major national plans and projects which includes aerospace, deep and subminiature space exploration, microsatellites, precision guidance of weapons. In this project, we propose a scheme whose theme is SOI silicon based optical waveguide integrated nano-optical waveguide with cross-scale optoelectronic integration for key technologies of dual-optic chip-scale atomic clock application. What we pursues is as follows：to make key subject issues like polarization state regulation of light field in nanometer light waveguide and interaction between light and atoms in cell clearly; effectively control of the polarization state of the local optical field and interaction between light and atoms in cell of the dual-optic chip-scale atomic clock will be revealed; the exploration of traceability method of background noise and make it under considerably control; achieving the goal that integrates fabrication of CSAC in trans-scale chips under EMC with which modern micro-machining, MEMS and ASIC technologies are combined and promoting related disciplines at the same time.