Dissemination of an optical frequency comb over fiber with 3 × 10^?18 fractional accuracy
Marra, Giuseppe, Margolis, Helen S. and Richardson, David J. (2012) Dissemination of an optical frequency comb over fiber with 3 × 10^?18 fractional accuracy. Optics Express, 20, (2), 1775-1782. (doi:10.1364/OE.20.001775).
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We demonstrate that the structure of an optical frequency comb transferred over several km of fiber can be preserved at a level compatible with the best optical frequency references currently available. Using an optical phase detection technique we measure the noise introduced by the fiber link and suppress it by stabilizing the optical path length. The measured fractional frequency stability of the transferred optical modes is 2 × 10^-18 at a few thousand seconds and the mode spacing stability after optical-microwave conversion is better than 4 × 10^-17 over the same time scale.
|Digital Object Identifier (DOI):||doi:10.1364/OE.20.001775|
|Keywords:||instrumentation, measurement and metrology|
|Subjects:||Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
|Divisions:||Faculty of Physical Sciences and Engineering > Optoelectronics Research Centre
|Date Deposited:||23 Apr 2012 09:34|
|Last Modified:||31 Mar 2016 14:26|
Transforming the Internet Infrastructure: The Photonic HyperHighway
Funded by: EPSRC (EP/I01196X/1)
Led by: David Neil Payne
1 November 2010 to 31 October 2016
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