Fiber-comb-stabilized light source at 556 nm for magneto-optical trapping of ytterbium

Abstract

A frequency-stabilized light source emitting at 556 nm is realized by frequency doubling a 1112 nm laser, which is phase locked to a fiber-based optical frequency comb. The 1112 nm laser is either an ytterbium (Yb)-doped distributed feedback fiber laser or a master-slave laser system that uses an external cavity diode laser as a master laser. We have achieved the continuous frequency stabilization of the light source over a 5 day period. With the light source, we have completed the second-stage magneto-optical trapping (MOT) of Yb atoms using the ${{}^{1}S}_0–{{}^{3}P}_1$ intercombination transition. The temperature of the ultracold atoms in the MOT was $40\mu \text{K}$ when measured using the time-of-flight method, and this is sufficient for loading the atoms into an optical lattice. The fiber-based frequency comb is shown to be a useful tool for controlling the laser frequency in cold-atom experiments.

© 2010 Optical Society of America

Narrow linewidth laser system realized by linewidth transfer using a fiber-based frequency comb for the magneto-optical trapping of strontium

Daisuke Akamatsu, Yoshiaki Nakajima, Hajime Inaba, Kazumoto Hosaka, Masami Yasuda, Atsushi Onae, and Feng-Lei Hong
Opt. Express 20(14) 16010-16016 (2012)

Spectroscopy of ¹⁷¹Yb in an optical lattice based on laser linewidth transfer using a narrow linewidth frequency comb

Hajime Inaba, Kazumoto Hosaka, Masami Yasuda, Yoshiaki Nakajima, Kana Iwakuni, Daisuke Akamatsu, Sho Okubo, Takuya Kohno, Atsushi Onae, and Feng-Lei Hong
Opt. Express 21(7) 7891-7896 (2013)

⁸⁷Rb-stabilized 375-MHz Yb:fiber femtosecond frequency comb

Thomas C. Schratwieser, Karolis Balskus, Richard A. McCracken, Carl Farrell, Christopher G. Leburn, Zhaowei Zhang, Tobias P. Lamour, Teresa I. Ferreiro, Alireza Marandi, Aidan S. Arnold, and Derryck T. Reid
Opt. Express 22(9) 10494-10499 (2014)

Offset-free broadband Yb:fiber optical frequency comb for optical clocks

Takuma Nakamura, Isao Ito, and Yohei Kobayashi
Opt. Express 23(15) 19376-19381 (2015)

Doppler-free spectroscopy of molecular iodine using a frequency-stable light source at 578 nm

Feng-Lei Hong, Hajime Inaba, Kazumoto Hosaka, Masami Yasuda, and Atsushi Onae
Opt. Express 17(3) 1652-1659 (2009)