Compact Yb+ optical atomic clock project: design principle and current status

8th Symposium on Frequency Standards and Metrology 2015

Lacroûte, Clément^1 ; Souidi, Maël^1 ; Bourgeois, Pierre-Yves^1 ; Millo, Jacques^1 ; Saleh, Khaldoun^1 ; Bigler, Emmanuel^1 ; Boudot, Rodolphe^1 ; Giordano, Vincent^1 ; Kersalé, Yann^1

FEMTO-ST, TF Dpt., UMR 6174 CNRS-ENSMM-UFC-UTBM, 26 ch de l'Epitaphe, Besançon

25030, France^1

关键词: Design Principles;    Extended cavity diode lasers;    Frequency stabilization;    Optical atomic clocks;    Pseudopotentials;    Surface electrode;    Trapping potential;    Wavelength meters;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/723/1/012025/pdf
DOI  :  10.1088/1742-6596/723/1/012025

来源: IOP

【 摘 要 】

We present the design of a compact optical clock based on the2S1/2→2D3/2435.5 nm transition in171Yb+. The ion trap will be based on a micro-fabricated circuit, with surface electrodes generating a trapping potential to localize a single Yb ion a few hundred μm from the electrodes. We present our trap design as well as simulations of the resulting trapping pseudo-potential. We also present a compact, multi-channel wavelength meter that will permit the frequency stabilization of the cooling, repumping and clear-out lasers at 369.5 nm, 935.2 nm and 638.6 nm needed to cool the ion. We use this wavelength meter to characterize and stabilize the frequency of extended cavity diode lasers at 369.5 nm and 638.6 nm.