Diode laser frequency stabilization for a Ca optical clock

Author

Stoehr, H. ; Degenhardt, C. ; Lisdat, Ch. ; Sterr, U. ; Helmcke, J.

Author_Institution

Phys. Tech. Bundesanstalt, Braunschweig, Germany

fYear

2003

fDate

22-27 June 2003

Firstpage

264

Abstract

Frequency stabilization of extended-cavity diode lasers at 657 nm to the Hz-level is reported. Using the Pound-Drever-Hall technique the lasers are locked to high-finesse Fabry-Perot cavities made of ULE (ultra low expansion glass). The cavities are isolated against vibrations passively with a one stage spring suspension inside an acoustic damping box resting on the optical table. Thus cavity accelerations on the μg-level and below are achieved. The temperature of the reference cavities is stabilized by the use of active and passive temperature stabilization.

Keywords

Fabry-Perot resonators; atomic clocks; calcium; laser cavity resonators; laser frequency stability; laser mode locking; semiconductor lasers; 657 nm; Ca; Ca optical clock; Pound-Drever-Hall technique; acoustic damping box; active temperature stabilization; cavity accelerations; diode laser frequency stabilization; extended-cavity diode lasers; high-finesse Fabry-Perot cavities; laser locking; passive temperature stabilization; ultralow expansion glass; Atom optics; Clocks; Diode lasers; Fabry-Perot; Frequency measurement; Laser noise; Laser transitions; Optical noise; Temperature; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics Conference, 2003. EQEC '03. European

Print_ISBN

0-7803-7733-8

Type

conf

DOI

10.1109/EQEC.2003.1314121

Filename

1314121