THORLABS PAX1000 - Page 66

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PAX1000
Another way to determine an ellipse is to use the power split ratio a and the phase difference D.
The power split ratio is defined between 0 £ a £ 1 and the phase difference can obtain values
between -180° £ D £ 180°.
The power split ratio and the phase difference can be calculated from azimuth and ellipticity by
the following formulas: