Industrial measurement of birefringence of optical components

Peter Kohns

doi:10.1117/12.364326

16 September 1999 Industrial measurement of birefringence of optical components

Peter Kohns

Proceedings Volume 3826, Polarization and Color Techniques in Industrial Inspection; (1999) https://doi.org/10.1117/12.364326
Event: Industrial Lasers and Inspection (EUROPTO Series), 1999, Munich, Germany

Abstract

We present a polarization measuring system for industrial applications. The system consists of a polarization state generator and a polarization sensitive detector consisting of a rotating waveplate, a polarizer, and a detector. A fast Fourier algorithm provides the four Stokes parameters of the light where all parameters are calculated independently. By tuning the polarization of the illuminating light we calculate the Jones matrix and the birefringence of the sample. A high accuracy is achieved by considering the fact that the transmission of the rotating waveplate in the detector depends on the polarization of the studied light. The system delivers the birefringence, the azimuth of the fast axis, the Jones matrix, and the eigenpolarizations of the sample under test. Under industrial conditions we found an accuracy of the stress birefringence of 0.1 nm and an accuracy of the azimuth of the fast axis of 0.1 degree.

Citation Download Citation

Peter Kohns "Industrial measurement of birefringence of optical components", Proc. SPIE 3826, Polarization and Color Techniques in Industrial Inspection, (16 September 1999); https://doi.org/10.1117/12.364326

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