Laser frequency locking with 46 GHz offset using an electro-optic modulator for magneto-optical trapping of francium atoms
Atomic Physics
2016-04-20 v1
Abstract
We demonstrated a frequency offset locking between two laser sources using a waveguide-type electro-optic modulator (EOM) with 10th-order sidebands for magneto-optical trapping of Fr atoms. The frequency locking error signal was successfully obtained by performing delayed self-homodyne detection of the beat signal between the repumping frequency and the 10th-order sideband component of the trapping light. Sweeping the trapping-light and repumping-light frequencies with keeping its frequency difference of 46 GHz was confirmed over 1 GHz by monitoring the Doppler absorption profile of I2. This technique enables us to search for a resonance frequency of magneto-optical trapping of Fr.
Keywords
Cite
@article{arxiv.1604.00137,
title = {Laser frequency locking with 46 GHz offset using an electro-optic modulator for magneto-optical trapping of francium atoms},
author = {K. Harada and T. Aoki and S. Ezure and K. Kato and T. Hayamizu and H. Kawamura and T. Inoue and H. Arikawa and T. Ishikawa and T. Aoki and A. Uchiyama and K. Sakamoto and S. Ito and M. Itoh and S. Ando and A. Hatakeyama and K. Hatanaka and K. Imai and T. Murakami and H. S. Nataraj and Y. Shimizu and T. Sato and T. Wakasa and H. P. Yoshida and Y. Sakemi},
journal= {arXiv preprint arXiv:1604.00137},
year = {2016}
}
Comments
6 pages, 6 figures