首页|Multiple wavelength frequency stabilization with a single transfer cavity for mercury optical lattice clock

Multiple wavelength frequency stabilization with a single transfer cavity for mercury optical lattice clock

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A simple and robust multiple wavelength frequency stabilization system is demonstrated using a single transfer cavity and a 1062-nm ultra-stable laser for all the lasers used in a mercury optical lattice clock.0ffset sideband locking is employed to tune the laser frequency while dichroic mirrors and differentiated modulation frequencies are utilized for the Pound-Drever-Hall locking of four-color lasers.For the most demanding lasers at 1015 nm and 725 nm,the line width of the beat note is reduced t0 27 kHz and 17 kHz,respectively.The frequency fluctuation for the transfer-locked 1015-nm laser is less than 10 kHz,which is much better than the lasers locked to an atomic spectrum.Using its high stability of 5 × 10-12 over 100 s,the transfer-locked 1015-nm laser is employed for low-noise frequency modulated saturated absorption spectroscopy.This approach could also be used in various situations for the research of optical clocks,Rydberg atoms,laser cooling of molecules,and quantum computation with neutral atoms.

laser frequency stabilizationFabry-Perot cavityoptical lattice clockPound-Drever-Hall locking

马莉、刘琪鑫、宋海阳、孙剑芳、徐震

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Key Laboratory for Quantum 0ptics,Shanghai Institute of 0ptics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China

Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China

Wangzhijiang Innovation Center for Laser,Aerospace Laser Technology and System Department,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China

2024

中国光学快报(英文版)
中国光学学会 中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCD
影响因子:1.305
ISSN:1671-7694
年,卷(期):2024.22(10)