基于超稳腔PDH锁频技术的852 nm超稳激光器
An 852 nm Frequency-stabilized Laser Based on the Ultrastable Cavity PDH Locking Technique
麻霁阳 1申彤 1薛潇博 1赵伟楠 1苏亚北 1杨宏雷 1左娅妮 2张升康1
作者信息
- 1. 北京无线电计量测试研究所,计量与校准技术重点实验室,北京 100039
- 2. 中国计量科学研究院,北京 102200
- 折叠
摘要
自上世纪80 年代激光锁定技术发展以来,超稳激光器在光钟、引力波探测、腔量子电动力学、星地通讯等高精度光学量子时频计量领域发挥着重要作用.利用Pound-Drever-Hall(PDH)锁频技术,可以将自由运转激光器的频率锁定后获得极高频率稳定性的激光输出.这里,将852 nm波长激光锁定在超稳谐振腔的频率谐振点上,实现超稳频激光输出.试验中的超稳谐振腔品质因子达到1010,精细程度达到20 万,输出激光的秒级频率稳定度达到5.2×10-15,线宽2.3 Hz.这一频率稳定度的连续激光器将为852 nm波长的钟激光器提供有力的技术支持,与Cs原子产生良好关联.
Abstract
Since the development of laser locking technology in the 1980s,ultrastable lasers have played an important role in high-precision optical quantum time-frequency metrology,such as optical clocks,gravitational wave detection,cavity quantum electrodynamics,and satellite-ground communication.The Pound-Drever-Hall(PDH)technology provides a good way to stabilize free running lasers.Here,by utilizing such method,we lock the 852 nm wavelength laser to the resonance frequency of the ultrastable cavity to achieve the highly-stabilized laser output.In the experiment,the quality factor of the ultrastable resonator reached 1010,the finesse reached 200,000,and the 1 second frequency stability of the output laser reached5.2×10-15 withlaserlinewidth of 2.3 Hz.This continuous laser with such frequency stability will provide robust technical support for an 852 nm clock laser with good correlation with Cs atoms.
关键词
Pound-Drever-Hall锁定/激光稳频/窄线宽激光Key words
Pound-Drever-Hall(PDH)locking/Laser frequency stabilization/Narrow linewidth laser引用本文复制引用
出版年
2024
NETL
NSTL
万方数据