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Opt Express. 2005 Feb 07;13(3):904-9. doi: 10.1364/opex.13.000904.

Long term comparison of two fiber based frequency comb systems.

Optics express

Philipp Kubina, Peter Adel, Florian Adler, Gesine Grosche, Theodor Hänsch, Ronald Holzwarth, Alfred Leitenstorfer, Burghard Lipphardt, Harald Schnatz

PMID: 19494952 DOI: 10.1364/opex.13.000904

Abstract

Mode-locked erbium-doped fiber lasers are ideal comb generators for optical frequency metrology. We compare two fiber frequency combs by measuring an optical frequency independently with both combs and comparing their results. The two frequency measurements agree within 6x10-16. This is to our knowledge the first direct comparison between two fiber based frequency combs.

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