Development and Evaluation of a Narrow Linewidth Laser System for 171Yb+ E2 Transition

分类： 光学 >> 量子光学 提交时间： 2023-02-19

Yani Zuo Shiying Cao Shaoyang Dai Yige Lin Tao Yang Baike Lin Fei Meng Weiliang Chen Kun Liu Fasong Zheng Tianchu Li Fang Fang

摘要： We report the construction and characterization of a narrow-linewidth laser system to interrogate the E2 clock transitions at 436 nm of ytterbium ions trapped in end-cap traps. The 871 nm seed laser at the fundamental frequency is referenced to a 10 cm long notched ULE cavity. The output of the laser system is delivered to a narrow-linewidth femtosecond fiber comb, which has been referenced to an ultrastable 698 nm laser, with a phase noise-canceled fiber link. The beat between the laser and the comb shows a sub-Hz linewidth, and with a stability better than 2E-15@1~100 s. The performance of the self-developed wavelength extension ports at 871 nm of the narrow linewidth erbium-doped fiber comb with single-point frequency-doubling technique is also verified.

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