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Proceedings Paper

Determination of scale nonlinearity in a laser interferometer
Author(s): Ondrej Cip; Frantisek Petru
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Paper Abstract

In this paper, the causes of nonlinearity of a laser interferometer with a single-frequency laser and a detection system with two signals in quadrature are described. Several methods of nonlinearity measurement are presented. Experimentally was tested a method with a linear mechanical shift and a method of linearity measurement using optical resonator. When using linearity compensation by means of a PC program, a deviation from linearity in limits of +/- 0.5 nm for the linear mechanical shift method was achieved. The preliminary results recorded during the linearity measurement with the optical resonator are below the limit of +/- 1.0 nm.

Paper Details

Date Published: 7 March 2001
PDF: 8 pages
Proc. SPIE 4356, 12th Czech-Slovak-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics, (7 March 2001); doi: 10.1117/12.417818
Show Author Affiliations
Ondrej Cip, Institute of Scientific Instruments (Czech Republic)
Frantisek Petru, Institute of Scientific Instruments (Czech Republic)


Published in SPIE Proceedings Vol. 4356:
12th Czech-Slovak-Polish Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Jan Perina; Miroslav Hrabovsky; Jaromir Krepelka, Editor(s)

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