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Mikel, Břetislav - Číp, Ondřej - Lazar, Josef
Originální název
Wavelength Control of VCSEL Laser Employed in the Absolute Laser Interferometer
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
In the work, we present the absolute interferometer with a narrow-linewidth tunable VCSEL laser (Vertical-Cavity Surface-Emitting Laser) working at 760 nm. As a detection technique, we use a fast wavelength-scanning interferometry improved by an amplitude division of the interference fringe with using two signals in quadrature. Used VCSEL laser is wide tunable with the mod-hop free tuning range more than 1.2 nm. We control the stabilization and tuning process of the laser wavelength with using the frequency lock to a Fabry-Perot glass plan-parallel etalon with high-fines. The optical set-up of the interferometer uses polarized beams and Michelson structure of the interferometer. We experimentally compared the developed absolute interferometer with a conventional – incremental Michelson interferometer based on a single frequency He-Ne laser that has the resolution 1.2 nm. We achieved the relative uncertainty below 10-4 order for a range of tested distances L < 78; 118 > mm.
Klíčová slova
wavelength-scanning interferometry, absolute interferometry, tunable laser, scale linearity
Autoři
Vydáno
1. 1. 2005
Strany od
40
Strany do
45
Strany počet
6
BibTex
@inproceedings{BUT20663, author="Břetislav {Mikel} and Ondřej {Číp} and Josef {Lazar}", title="Wavelength Control of VCSEL Laser Employed in the Absolute Laser Interferometer", booktitle="XXVIIIth general assembly of International Radio Science", year="2005", pages="6" }