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Opt Express. 2008 Sep 29;16(20):15980-90.

Laser frequency stabilization and control through offset sideband locking to optical cavities.

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  • 1NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.


We describe a class of techniques whereby a laser frequency can be stabilized to a fixed optical cavity resonance with an adjustable offset, providing a wide tuning range for the central frequency. These techniques require only minor modifications to the standard Pound-Drever-Hall locking techniques and have the advantage of not altering the intrinsic stability of the frequency reference. We discuss the expected performance and limitations of these techniques and present a laboratory investigation in which both the sideband techniques and the standard, on-tunable Pound-Drever- Hall technique reached the 100Hz/square root(Hz) level.

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