Publication detail

Wavelength Control of VCSEL Laser Employed in the Absolute Laser Interferometer

Mikel, Břetislav - Číp, Ondřej - Lazar, Josef

Original Title

Wavelength Control of VCSEL Laser Employed in the Absolute Laser Interferometer

Type

conference paper

Language

English

Original Abstract

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.

Keywords

wavelength-scanning interferometry, absolute interferometry, tunable laser, scale linearity

Authors

Mikel, Břetislav - Číp, Ondřej - Lazar, Josef

Released

1. 1. 2005

Pages from

40

Pages to

45

Pages count

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"
}