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Proceedings Paper

Multiwavelength laser interferometry with semiconductor laser source
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Paper Abstract

First set-up of the laser interferometer with tunable semiconductor laser is presented. To reduce the influence of the index of refraction of air, the design of optical set-up of the experimental interferometer is realized using fiber optics. VCSEL diodes (Vertical Surface Emitting Laser) and DFB laser diodes (Distributed FeedBack) were used in our setup of the laser interferometer. Comparison of the frequency stability and the wavelength tuneability of these laser diodes are presented. In our first set-up of the laser interferometer was used the method of the frequency stabilization on optical resonator to stabilize of frequency of laser diodes and measurement of the tuneability of the wavelength. Measurement of absolute values can be providing by this laser interferometer. The project will be proceed with the research of other modulation and detection techniques and development of a new method with high level of digital signal processing for the detection of interference signals to improve resolution of the interferometer. The design of an absolute laser interferometer which was intended to operate in applications oriented to precision manufacturing and testing where the ability to measure distance directly is needed and where the measured distances are relatively small ranging over no more than few cm.

Paper Details

Date Published: 14 December 2010
PDF: 6 pages
Proc. SPIE 7746, 17th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 77460F (14 December 2010); doi: 10.1117/12.882063
Show Author Affiliations
B. Mikel, Institute of Scientific Instruments of the ASCR, v.v.i. (Czech Republic)
Z. Buchta, Institute of Scientific Instruments of the ASCR, v.v.i. (Czech Republic)
J. Lazar, Institute of Scientific Instruments of the ASCR, v.v.i. (Czech Republic)
O. Cip, Institute of Scientific Instruments of the ASCR, v.v.i. (Czech Republic)


Published in SPIE Proceedings Vol. 7746:
17th Slovak-Czech-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Jarmila Müllerová; Dagmar Senderáková; Stanislav Jurečka, Editor(s)

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