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Proceedings Paper

Parameter optimization of a vectorial optical field generator for precise spatial polarization control
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Paper Abstract

We report the realization of precise spatial polarization control of light via a priori optimization of the polarization ratio and retardation modulation in a vectorial optical field generator. For the polarization ratio calibration, we generate 45° linearly polarized light, measure the intensities of the vertical and horizontal components of the output beam and calculate the ratio of them to obtain the modification coefficient. After several iterations, the corresponding coefficient converges to an optimized value based on the criterion that the measured intensities are equal to each other. As for the retardation calibration, circularly polarized light is generated and letting the modulated beam propagate through a circular polarization analyzer. The modification value is adjusted by dichotomy until the detected intensity of the output beam from the circular polarization analyzer approaches extinction. Several typical kinds of vectorial optical beams are generated with the obtained modification parameters and the measured Stokes parameters demonstrate that this method is practicable and beneficial for the performance improvement of the vectorial optical field generator.

Paper Details

Date Published: 20 February 2017
PDF: 7 pages
Proc. SPIE 10090, Laser Resonators, Microresonators, and Beam Control XIX, 100901I (20 February 2017); doi: 10.1117/12.2250162
Show Author Affiliations
Jian Chen, Univ. of Electronic Science and Technology of China (China)
Univ. of Dayton (United States)
Guanghao Rui, Southeast Univ. (China)
Lingjiang Kong, Univ. of Electronic Science and Technology of China (China)
Qiwen Zhan, Univ. of Dayton (United States)

Published in SPIE Proceedings Vol. 10090:
Laser Resonators, Microresonators, and Beam Control XIX
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko, Editor(s)

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