Accurate polarization interferometer
- 1 July 1995
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 66 (7) , 3729-3734
- https://doi.org/10.1063/1.1145429
Abstract
A polarizationinterferometer which measures optical path differences with improved accuracy control is presented. The approach makes use of four signals in quadrature, computing the phase with an algorithm insensitive to laser power drifts. Experimental results of the interferometer’s performance are given under laser warmup conditions, and with long‐term monitoring of optical path differences.Keywords
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