Details

Autor(en) / Beteiligte

• Sato, Takumi
• Hayakawa, Yusuke
• Okamoto, Naohiro
• Shimomura, Yusuke
• Aoki, Takatoshi
• Torii, Yoshio

Titel

Birefringent atomic vapor laser lock in a hollow cathode lamp

Ist Teil von

• Journal of the Optical Society of America. B, Optical physics, 2022-01, Vol.39 (1), p.155

Erscheinungsjahr

2022

Quelle

Optica Publishing Group Journals

Beschreibungen/Notizen

• We report a robust method of stabilizing a laser to the frequency of an atomic transition using a hollow cathode lamp. In contrast to the standard dichroic atomic vapor laser lock method, which uses dichroism induced by a longitudinal magnetic field, we employ birefringence induced by a transversal magnetic field. We applied this method to the ( 5 s 2 ) 1 S 0 − ( 5 s 5 p ) 1 P 1 transition (461 nm) of Sr. Although the hollow cathode is made of ferromagnetic material, we successfully applied a magnetic field of sufficient strength to obtain an error signal with a theoretical maximum slope. This method may be applied to other hollow cathode lamps of different atomic species.