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Optics Letters

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  • Vol. 27, Iss. 1 — Jan. 1, 2002
  • pp: 58–60

Femtosecond-laser-based optical clockwork with instability≤ less than or equal to 6.3 X 10-16 in 1 s

Scott A. Diddams, L. Hollberg, Long-Sheng Ma, and Lennart Robertsson  »View Author Affiliations


Optics Letters, Vol. 27, Issue 1, pp. 58-60 (2002)
http://dx.doi.org/10.1364/OL.27.000058


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Abstract

Two octave-spanning optical-frequency combs (750-MHz comb spacing) are phase locked to a common continuous-wave laser diode. The measured instability of the heterodyne beat between the two combs demonstrates that the intrinsic fractional frequency noise of a comb is ≤6.3 χ 10-16 in 1 s of averaging across the ~300-THz bandwidth. Furthermore, the average frequencies of the elements of the two combs are found to agree within an uncertainty of 4 χ 10-17 across the entire octave. We demonstrate the possibility of transfering the stability and accuracy of the best current optical standards to ~500,000 individual oscillators across the visible and near-infrared spectrum.

© 2002 Optical Society of America

OCIS Codes
(120.3940) Instrumentation, measurement, and metrology : Metrology
(140.4050) Lasers and laser optics : Mode-locked lasers
(320.7090) Ultrafast optics : Ultrafast lasers

Citation
Scott A. Diddams, L. Hollberg, Long-Sheng Ma, and Lennart Robertsson, "Femtosecond-laser-based optical clockwork with instability≤ less than or equal to 6.3 X 10-16 in 1 s," Opt. Lett. 27, 58-60 (2002)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-27-1-58


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