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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 9 — Mar. 20, 2009
  • pp: 1697–1704

Optical phase and intensity modulation from a rotating optical flat: effect on noise in degree of polarization measurements

Steven J. Lascos and Daniel T. Cassidy  »View Author Affiliations


Applied Optics, Vol. 48, Issue 9, pp. 1697-1704 (2009)
http://dx.doi.org/10.1364/AO.48.001697


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Abstract

A spectral analysis of the electrical signal from the detector in degree of polarization (DOP) measurements that use a rotating polarizer shows base band frequencies that create a noise floor. The noise floor arises from phase and intensity modulation of the optical field owing to the varying thickness and transmission of the rotating optical polarizer in the DOP apparatus. A physical model is presented for the noise floor arising from the phase and intensity modulation, and a calibration procedure including configuration guidelines is provided to minimize the effects of the unwanted modulations.

© 2009 Optical Society of America

OCIS Codes
(060.4080) Fiber optics and optical communications : Modulation
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.5410) Instrumentation, measurement, and metrology : Polarimetry

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: September 8, 2008
Revised Manuscript: February 17, 2009
Manuscript Accepted: February 24, 2009
Published: March 13, 2009

Citation
Steven J. Lascos and Daniel T. Cassidy, "Optical phase and intensity modulation from a rotating optical flat: effect on noise in degree of polarization measurements," Appl. Opt. 48, 1697-1704 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-9-1697

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