Narrow-selection bandwith of femtosecond laser comb with application to changes in optical path distance

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F10%3A00352220" target="_blank" >RIV/68081731:_____/10:00352220 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Narrow-selection bandwith of femtosecond laser comb with application to changes in optical path distance
Original language description
In this contribution we propose a scheme of Fabry-Perot interferometer measuring the absolute distance in atmosferic conditions using a femtosecond laser comb. The spacing of mirrors of the Fabry-Perot interferometer represents the length standard referenced to stable optical frequency of the femtosecond mode-locked laser. With the help of highly selective optical filter it is possible to get only a few of separate spectral components. By tuning and locking of the Fabry-Perot cavity to a selected singlecomponent it is possible to get a mechanical length standard with the uncertainty of the repetition frequency of the femtosecond laser. If the interferometer measures distance in atmospheric conditions, the absolute value of the laser wavelength fluctuates with a refractive index of air. Compairing the measurement in evacuated chamber with measurement in ambient air leads to enhanced precision in measurement of refrective index of air.
Czech name
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Czech description
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Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Optical Micro- and Nanometrology III (Proceedings of SPIE Vol. 7718)
ISBN
978-0-8194-8191-7
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
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Publisher name
SPIE
Place of publication
Bellingham
Event location
Brussels
Event date
Apr 13, 2010
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000285182000034

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