EPJ Web of Conferences
Volume 48, 2013OAM 2012 – Optics and Measurement International Conference
|Number of page(s)||4|
|Published online||03 May 2013|
High Frequency Modulation Method for Measuring of Birefringence
Technical University of Liberec,
Physics Department, 46117 Liberec,
Studentská 2, Czech Republic
A method of optical birefringence measurement is presented. It uses an el ectro-optic modulator for the high frequency modulation of polarization of the laser beam. The developed optical apparatus exhibits high sensitivity. It is able to measure very small birefringence of samples down to 10-3 rad. The accuracy and sensitivity of the method was checked by measurement of calibrated Sol eil – Babi net compensator. Method can be also used for online and accurate measurement of an optical components birefringence. This application was developed with the aim to measure Cotton-Mouton effect in air and nitrogen.
© Owned by the authors, published by EDP Sciences, 2013
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