摘要
We report the observation of ultralow-power absorption saturation in a tapered optical fiber(TOF) mounted in a hot cesium(Cs) vapor in a vacuum chamber. The small optical mode area of TOF produces a great influence on optical properties, allowing optical interactions with nanowatt-level power. The comparison of transmission characteristics for the TOF system and free-space vapor is investigated at different input power and atomic density. The unique performance of the Cs-TOF system makes it a promising candidate in resonant nonlinear optical applications with ultralow power.
We report the observation of ultralow-power absorption saturation in a tapered optical fiber(TOF) mounted in a hot cesium(Cs) vapor in a vacuum chamber. The small optical mode area of TOF produces a great influence on optical properties, allowing optical interactions with nanowatt-level power. The comparison of transmission characteristics for the TOF system and free-space vapor is investigated at different input power and atomic density. The unique performance of the Cs-TOF system makes it a promising candidate in resonant nonlinear optical applications with ultralow power.
作者
Zixuan Song
Xingyu Yue
Yu Luo
Haodong Li
Yanting Zhao
宋子旋;岳星宇;罗宇;李好东;赵延霆(State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy,Shanxi University;Collaborative Innovation Center of Extreme Optics, Shanxi University;College of Physics and Electronics Engineering, Shanxi University)
基金
supported by the National Key Research and Development program(No.2017YFA0304203)
National Natural Science Foundation of China(Nos.61675120,11434007,and 61875110)
NSFC Project for Excellent Research Team(No.61121064),Shanxi Scholarship Council of China,"1331 KSC",PCSIRT(No.IRT13076)
and Applied Basic Research Project of Shanxi Province(No.201601D202008)
