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

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 lase...

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Bibliographic Details
Published in:arXiv.org 2023-03
Main Authors: Zuo, Yani, Cao, Shiying, Dai, Shaoyang, Lin, Yige, Yang, Tao, Lin, Baike, Meng, Fei, Chen, Weiliang, Liu, Kun, Zheng, Fasong, Li, Tianchu, Fang, Fang
Format: Article
Language:English
Subjects:
Doped fibers
Erbium
Lasers
Phase noise
Resonant frequencies
Ytterbium
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Summary: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.
ISSN:2331-8422