Share Email Print
cover

Proceedings Paper

Research progress of 698nm narrow-linewidth lasers applied for Sr atom optical clocks at NTSC
Author(s): Long Chen; Linbo Zhang; Jun Liu; Guanjun Xu; Chenhui Jiang; Le Fan; Tao Liu; Ruifang Dong; Shougang Zhang
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Narrow linewidth frequency-stabilized lasers are crucial in the research of optical clocks, precision spectroscopy, and tests of fundamental physics. Narrow linewidth laser with the wavelength of 698nm is essential in the development of Sr atom optical clocks that will be used for the frequency standards in the future. Here we report the recent development of ultra-stable lasers at national time service center, Chinese academy of sciences (NTSC). In the experiment, the frequency of an extended cavity diode laser at the wavelength of 698nm is stabilized to a reference cavity with a finesse of ~130000 using the Pound-Drever-Hall methods. The optical heterodyne beat between two independent lasers shows that the linewidth of one diode laser reaches 0.88Hz. The fractional frequency stability removed linear frequency shift is better than 2×10-15.

Paper Details

Date Published: 3 January 2020
PDF: 6 pages
Proc. SPIE 11203, Advances in Optical Astronomical Instrumentation 2019, 1120311 (3 January 2020); doi: 10.1117/12.2547575
Show Author Affiliations
Long Chen, National Time Service Ctr. (China)
Key Lab. of Time and Frequency Standards (China)
Univ. of Chinese Academy of Sciences (China)
Linbo Zhang, National Time Service Ctr. (China)
Key Lab. of Time and Frequency Standards (China)
Univ. of Chinese Academy of Sciences (China)
Jun Liu, National Time Service Ctr. (China)
Key Lab. of Time and Frequency Standards (China)
Guanjun Xu, National Time Service Ctr. (China)
Key Lab. of Time and Frequency Standards (China)
Chenhui Jiang, National Time Service Ctr. (China)
Key Lab. of Time and Frequency Standards (China)
Univ. of Chinese Academy of Sciences (China)
Le Fan, National Time Service Ctr. (China)
Key Lab. of Time and Frequency Standards (China)
Tao Liu, National Time Service Ctr. (China)
Key Lab. of Time and Frequency Standards (China)
Ruifang Dong, National Time Service Ctr. (China)
Key Lab. of Time and Frequency Standards (China)
Shougang Zhang, National Time Service Ctr. (China)
Key Lab. of Time and Frequency Standards (China)


Published in SPIE Proceedings Vol. 11203:
Advances in Optical Astronomical Instrumentation 2019
Simon C. Ellis; Céline d'Orgeville, Editor(s)

© SPIE. Terms of Use
Back to Top
PREMIUM CONTENT
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?
close_icon_gray