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Proceedings Paper

Stokes polarimeter using two photoelastic modulators
Author(s): Baoliang Bob Wang; Jennifer List; Richard R. Rockwell
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Paper Abstract

We report in this paper an instrument for measuring the Stokes parameters of a light beam. This Stokes polarimeter employs two low birefringence photoelastic modulators (PEMs) operating at different resonant frequencies. The two PEMs in the instrument are oriented 45° apart. An analyzer, following the PEM-pair, bisects the PEMs' optical axes. Electronic signals from a detector are analyzed using lock-in amplifiers at the PEMs' first and second harmonics. A computer program calculates and displays the intensity parameter and the normalized Stokes parameters of the light beam measured. Common laboratory lasers are measured as examples.

Paper Details

Date Published: 25 September 2002
PDF: 8 pages
Proc. SPIE 4819, Polarization Measurement, Analysis, and Applications V, (25 September 2002); doi: 10.1117/12.450872
Show Author Affiliations
Baoliang Bob Wang, Hinds Instruments, Inc. (United States)
Jennifer List, Hinds Instruments, Inc. (United States)
Richard R. Rockwell, Hinds Instruments, Inc. (United States)

Published in SPIE Proceedings Vol. 4819:
Polarization Measurement, Analysis, and Applications V
Dennis H. Goldstein; David B. Chenault, Editor(s)

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