Optical frequency metrology with ytterbium and strontium optical lattice clocks

Author

Hong, Feng-Lei ; Yasuda, Masami ; Kohno, Takuya ; Hosaka, Kazumoto ; Akamatsu, Daisuke ; Inaba, Hajime ; Nakajima, Yoshiaki ; Iwakuni, Kana ; Onae, Atsushi

fYear

2011

fDate

13-20 Aug. 2011

Firstpage

1

Lastpage

2

Abstract

We report on the development of an ytterbium (¹⁷¹Yb) and a strontium (⁸⁷Sr) optical lattice clock at the National Metrology Institute of Japan (NMIJ). The result of absolute frequency measurement of the ¹⁷¹Yb lattice clock is shown. We also report on narrow-linewidth fiber-based frequency combs that are used not only to measure the absolute frequency of the optical lattice clocks but also to servo control the frequency of the lasers for cooling and trapping Yb and Sr atoms.

Keywords

atomic clocks; frequency measurement; laser cooling; laser variables measurement; optical lattices; optical pulse compression; strontium; ytterbium; ¹⁷¹Yb; ⁸⁷Sr; NMIJ; National Metrology Institute of Japan; Sr atom cooling; Sr atom trapping; Yb atom cooling; Yb atom trapping; frequency measurement; laser frequency; narrow-linewidth fiber-based frequency combs; optical frequency metrology; servo control; strontium optical lattice clocks; ytterbium optical lattice clocks; Clocks; Erbium-doped fiber lasers; Frequency measurement; Lattices; Optical fiber amplifiers;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium, 2011 XXXth URSI

Conference_Location

Istanbul

Print_ISBN

978-1-4244-5117-3

Type

conf

DOI

10.1109/URSIGASS.2011.6050323

Filename

6050323