Investigation of a photoelastic modulator of light

Alader Czitrovszky; Peter Jani

doi:10.1117/12.959043

15 May 1981 Investigation of a photoelastic modulator of light

Alader Czitrovszky, Peter Jani

Proceedings Volume 0236, 1980 European Conf on Optical Systems and Applications; (1981) https://doi.org/10.1117/12.959043
Event: 1980 European Conference on Optical Systems and Applications, 1980, Utrecht, Netherlands

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.

Citation Download Citation

Alader Czitrovszky and Peter Jani "Investigation of a photoelastic modulator of light", Proc. SPIE 0236, 1980 European Conf on Optical Systems and Applications, (15 May 1981); https://doi.org/10.1117/12.959043

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