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Diode laser frequency stabilization for a Ca optical clock

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5 Author(s)
H. Stoehr ; Phys. Tech. Bundesanstalt, Braunschweig, Germany ; C. Degenhardt ; Ch. Lisdat ; U. Sterr
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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.

Published in:

Quantum Electronics Conference, 2003. EQEC '03. European

Date of Conference:

22-27 June 2003