Displacement metrology with sub-pm resolution in air based on a fs-comb wavelength synthesizer

We report on a displacement metrology setup that provides sub-pm resolution in air. The setup is based on a Fabry-Perot cavity. However, unlike current Fabry-Perot cavity based displacement setups we incorporate a novel fs-laser based arbitrary wavelength synthesizer that provides efficient suppress...

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Bibliographic Details
Published in:Optics express 2006-06, Vol.14 (13), p.5984-5993
Main Authors: Schibli, T R, Minoshima, K, Bitou, Y, Hong, F-L, Inaba, H, Onae, A, Matsumoto, H
Format: Article
Language:English
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Summary:We report on a displacement metrology setup that provides sub-pm resolution in air. The setup is based on a Fabry-Perot cavity. However, unlike current Fabry-Perot cavity based displacement setups we incorporate a novel fs-laser based arbitrary wavelength synthesizer that provides efficient suppression of atmospheric disturbances while providing very wide and precise tuning of the output wavelength. The wavelength synthesizer provides sub-10 attometer wavelength resolution. The setup provides subpm length stability for integration times of up to one minute and sub-10 pm for up to half an hour without airtight enclosure of the Fabry-Perot cavities.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.14.005984