Femtosecond-laser-based synthesis of ultrastable microwave signals from optical frequency references
Optics Letters, Vol. 30, Issue 6, pp. 667-669 (2005)
http://dx.doi.org/10.1364/OL.30.000667
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Abstract
We use femtosecond laser frequency combs to convert optical frequency references to the microwave domain, where we demonstrate the synthesis of 10-GHz signals having a fractional frequency instability of < or = 3.5×10^-15 at a 1-s averaging time, limited by the optical reference. The residual instability and phase noise of the femtosecond-laser-based frequency synthesizers are 6.5×10^-16 at 1 s and -98 dBc/Hz at a 1-Hz offset from the 10-GHz carrier, respectively. The timing jitter of the microwave signals is 3.3 fs.
© 2005 Optical Society of America
OCIS Codes
(120.3940) Instrumentation, measurement, and metrology : Metrology
(140.7090) Lasers and laser optics : Ultrafast lasers
(320.7160) Ultrafast optics : Ultrafast technology
Citation
A. Bartels, S. A. Diddams, C. W. Oates, G. Wilpers, J. C. Bergquist, W. H. Oskay, and L. Hollberg, "Femtosecond-laser-based synthesis of ultrastable microwave signals from optical frequency references," Opt. Lett. 30, 667-669 (2005)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-30-6-667
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