Share Email Print
cover

Proceedings Paper

Light source for low-coherence interferometry combining LED and single mode optical fiber
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

This paper describes a pilot experiment of optimization of a white-light source for a low-coherence interferometry. The white-light source combines the light beams generated with colour LEDs. By modelling of the white light spectra, a contrast of a white light interference fringe could be changed and set to the maximal value. Hereafter, a concept of the light source for the low-coherence interferometry based on high-luminescent LED and single mode optical fibres is presented.The design comes out form a requirement to have an output beam combining a white-light beam and a laser beam. In the case of coaxial white-light and laser beam, the white-light interferometer is precisely combined with an incremental laser interferometer. This combination allows doing online surface diagnostics with high precision. The optimized white light source is designed to be a crucial part of an experimental setup for the surface diagnostics and automatic calibration of gauge blocks.

Paper Details

Date Published: 11 October 2011
PDF: 5 pages
Proc. SPIE 8306, Photonics, Devices, and Systems V, 83060E (11 October 2011); doi: 10.1117/12.912599
Show Author Affiliations
Zdenek Buchta, Institute of Scientific Instruments (Czech Republic)
Břetislav Mikel, Institute of Scientific Instruments (Czech Republic)
Šimon Řeřucha, Institute of Scientific Instruments (Czech Republic)
Josef Lazar, Institute of Scientific Instruments (Czech Republic)
Ondřej Číp, Institute of Scientific Instruments (Czech Republic)


Published in SPIE Proceedings Vol. 8306:
Photonics, Devices, and Systems V
Pavel Tománek; Dagmar Senderáková; Petr Páta, Editor(s)

© SPIE. Terms of Use
Back to Top