摘要
原子喷泉钟是具有重要应用价值的冷原子装置,紧凑型光学系统设计是研制可搬运冷原子喷泉钟的关键技术之一。介绍了一种以通用铝型材搭建的网格化光学平台,并基于此平台实现了^85Rb喷泉钟紧凑型光路。通过仿真,证明了该型材网格平台在二维方向均具有较好的力学性能。在该平台上,设计并搭建了四倍频移、注入锁定放大、冷却光路、再泵浦光路和探测光路等单元模块,满足了喷泉钟的所有要求。该网格平台面积为50 cm×50 cm,高度为2.5~3 cm。该光路实现了8个月以上的持续运行,功率的起伏小于5%。基于该紧凑型光学系统,完成了后续的^85Rb喷泉钟的物理实验和微波实验。
The atomic fountain clock is one cold atom applied apparatus possessing important applications.Compact laser system design is one of the key techniques for a portable cold atomic fountain clock.This paper introduces a gridded optical platform built with the general aluminum profiles,and based on it,we construct a compact optical path for the^85Rb fountain clock.Through simulation,it is proved that the profile gridded platform has better mechanical properties in two-dimensional direction.On this platform,we design and build the modules of such as four-pass frequency shift,injection locked amplifier,cooling optical path,repumping and probing paths to satisfy all requirements of an atomic fountain clock.The platform covers an area of 50 cm×50 cm and has a height of 2.5-3 cm.The optical path has been running continuously for more than 8 months with a power fluctuation less than 5%.Based on the compact optical system,we have completed the subsequent physical and microwave experiments of^85Rb fountain clocks.
作者
姬清晨
董日昌
王倩
张宁
赵伟靖
王燕
魏荣
Ji Qingchen;Dong Richang;Wang Qian;Zhang Ning;Zhao Weijing;Wang Yan;Wei Rong(Department of Physics,Shanghai University,Shanghai 200444,China;Key Laboratory for Quantum Optics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China;Institution of Navigation Satellite,Innovation Academy for Microsatellites,Chinese Academy of Sciences,Shanghai 201203,China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2020年第18期1-9,共9页
Acta Optica Sinica
基金
中国科学院战略性先导科技专项(B类)(XDB21030200)。
