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Proceedings Paper

Investigation of a photoelastic modulator of light
Author(s): Alader Czitrovszky; Peter Jani
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Paper Abstract

Polarization modulators are investigated in which optical anisotrpy is induced by acoustical waves in isotropic materials. The theory of operation is presented for the case when according to various polarization conditions the modulation appears on the first or on an even harmonic of the generation. The dependence of modulation parameters on the driving voltage and on the geometrical position is discussed. The modulator developed gives a modulated signal of high quality which on the first harmonic attained 80 % on the second harmonic 45 % of the incident light intensity with practically total extinction in the minimum points. According to their resonance frequency the modulators of this type can over the 40-1000 kHz frequency range. The possibility of a quarz stability chopper relaised on this principle is indicated.

Paper Details

Date Published: 15 May 1981
PDF: 6 pages
Proc. SPIE 0236, 1980 European Conf on Optical Systems and Applications, (15 May 1981); doi: 10.1117/12.959043
Show Author Affiliations
Alader Czitrovszky, Central Research Institute for Physics (Hungary)
Peter Jani, Central Research Institute for Physics (Hungary)

Published in SPIE Proceedings Vol. 0236:
1980 European Conf on Optical Systems and Applications
D. J. Kroon, Editor(s)

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