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Proceedings Article

Position measurement in standing wave interferometer for metrology of length

[+] Author Affiliations
Josef Lazar, Ondřej Číp, Jindřich Oulehla, Pavel Pokorný

Institute of Scientific Instruments (Czech Republic)

Antonín Fejfar, Jiří Stuchlík

Institute of Physics (Czech Republic)

Proc. SPIE 8306, Photonics, Devices, and Systems V, 830607 (October 11, 2011); doi:10.1117/12.913615
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From Conference Volume 8306

  • Photonics, Devices, and Systems V
  • Pavel Tománek; Dagmar Senderáková; Petr Páta
  • Prague, Czech Republic | August 24, 2011

abstract

We present techniques oriented to improvement of precision in incremental interferometric measurements of displacements over a limited displacement range. The wavelength of the coherent laser source is here directly stabilized to a mechanical reference and not to a reference of any optical frequency. This may represent a reduction of uncertainty linking the laser wavelength not to indirectly evaluated refractive index but to the setup mechanics which cannot be completely eliminated. Here we suggest an approach where the traditional interferometers are replaced by a passive Fabry-Perot cavity with position sensing using an intracavity transparent photodetector.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Josef Lazar ; Ondřej Číp ; Jindřich Oulehla ; Pavel Pokorný ; Antonín Fejfar, et al.
"Position measurement in standing wave interferometer for metrology of length", Proc. SPIE 8306, Photonics, Devices, and Systems V, 830607 (October 11, 2011); doi:10.1117/12.913615; http://dx.doi.org/10.1117/12.913615


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