Suppression of spurious phase shifts in an optical frequency standard
- 1 April 2001
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Instrumentation and Measurement
- Vol. 50 (2), 535-538
- https://doi.org/10.1109/19.918185
Abstract
We have analyzed two types of time-domain atom-light interferometers realized by a series of beam splitting copropagating or counterpropagating laser pulses. We show how a combination of both types can be used to identify and to reduce spurious systematic phase shifts in a high-precision optical frequency standard. In particular, we have investigated theoretically and experimentally the influence of minute wave front curvatures and gravitational acceleration. Application of this technique to a Ca optical frequency standard leads to estimates of the relative uncertainty due to wave front curvature and gravitational acceleration of 8/spl times/10/sup -15/ and 6.5/spl times/10/sup -16/, respectively.Keywords
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