4k温度稳定性和振动及样机测试数据

精密量子光频标样机组成上包括光钟、精密光梳、主控电子学以及应用于环境保障的伺服平台；光钟包括原子物理系统、原子冷却及激光系统、超稳激光系统等。各模块技术指标要求高，对环境要求高，内部接口复杂，共同构成星载光频标系统。本子课题负责一套光频标系统整机包络的工程结构，原子物理系统真空腔体和4K低温腔体工程化，形成满足空间环境要求的载荷产品。通过整个子课题研制阶段，获得了微振动测试数据，光频标样机的单机接口测试数据，整星条件下的力学试验数据等，总数据量约2.5MB。

The prototype of high-precision quantum optical frequency standard consists of an optical clock, high-precision optical comb, main control electronics, and a servo platform for environmental support. The optical clock includes an atomic physics system, atomic cooling and laser system, ultra-stable laser system, and other components. All these modules have strict requirements for technical indicators and environment, and feature complex internal interfaces, collectively forming the space-borne optical frequency standard system. This sub-project is responsible for the engineering structure of the overall envelope of a complete optical frequency standard system, as well as the engineering realization of the vacuum chamber and 4K cryogenic chamber of the atomic physics system, to develop a payload product that meets space environmental requirements. During the entire development phase of this sub-project, test data including micro-vibration test data, single-unit interface test data of the optical frequency standard prototype, and mechanical test data under satellite-integrated conditions were obtained, with a total data volume of approximately 2.5 MB.