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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.
Quantum Electronics Conference, 2003. EQEC '03. European
Date of Conference: 22-27 June 2003