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Different Designs for a Polarization State Detector Based on Division-of-Amplitude

 
: Negara, Christian

:
Postprint urn:nbn:de:0011-n-4618287 (451 KByte PDF)
MD5 Fingerprint: bb53afc187236e2ffbbeca42b915ec88
Created on: 24.8.2017


Beyerer, Jürgen (Ed.); Pak, Alexey (Ed.):
Joint Workshop of Fraunhofer IOSB and Institute for Anthropomatics, Vision and Fusion Laboratory 2016. Proceedings : Triberg-Nussbach, July, 24 to 29, 2016
Karlsruhe: KIT Scientific Publishing, 2017 (Karlsruher Schriften zur Anthropomatik 33)
ISBN: 978-3-7315-0678-2
DOI: 10.5445/KSP/1000070009
pp.85-107
Fraunhofer Institute of Optronics, System Technologies and Image Exploitation and Institute for Anthropomatics, Vision and Fusion Laboratory (Joint Workshop) <2016, Triberg-Nussbach>
English
Conference Paper, Electronic Publication
Fraunhofer IOSB ()

Abstract
A polarization state detector (PSD) measures all parameters of the state of polarization of the detected light. The state of polarization is described by four Stokes parameters while the total phase of the light is discarded.
Only four intensity measurements are needed to measure the four Stokes parameters even though the Stokes vector is defined by six intensity
measurements. By using a special optical design with four photodetectors,
these measurements can be conducted simultaneously. To measure the
Stokes vector with high accuracy, a special beam splitter has been proposed
in the literature imposing constraints on the reflectance, transmittance and
retardance of the p- and s-polarized reflected and transmitted wave. Later
on, several alternative designs have been proposed using two or more retarders
and ordinary beam splitters. In this report another alternative design
of the PSD is presented. In fact, only two instead of four waveplates are
needed to get optimal results for ordinary beam splitters with suboptimal
optical properties.

: http://publica.fraunhofer.de/documents/N-461828.html