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Optical Engineering • Open Access

Indoor wireless optical communication systems: effect of ambient noise
Author(s): Nazmi A. Mohamed; Asmaa M. Aly; Ahmed K. AboulSeoud; Moustafa H. Aly

Paper Abstract

Many techniques using polarizers, differential detectors, and electrical filters are used to overcome the penalty induced by artificial light interference and are analyzed. These techniques are used to reduce noise current or remove it by using an electrical filter or a polarizer or both of them together. We are going to display the effect of noise voltage, flicker voltage of a tungsten lamp, and signal-to-noise ratio (SNR) of the systems by changing each parameter to reach the best solution for reducing the effect of noise on free space optics. This paper will show that the best SNR is obtained with the differential detector with a two orthogonal polarizer system and that the worst one is with the system of a single photodetector.

Paper Details

Date Published: 19 May 2014
PDF: 7 pages
Opt. Eng. 53(5) 055109 doi: 10.1117/1.OE.53.5.055109
Published in: Optical Engineering Volume 53, Issue 5
Show Author Affiliations
Nazmi A. Mohamed, Arab Academy for Science, Technology & Maritime Transport (Egypt)
Asmaa M. Aly, Arab Academy for Science, Technology & Maritime Transport (Egypt)
Ahmed K. AboulSeoud, Alexandria Univ. (Egypt)
Moustafa H. Aly, Arab Academy for Science, Technology & Maritime Transport (Egypt)

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