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Reducing the Effects of Wireless Optical Noise Using the Loss Characteristics of Plastic Fibers  

Lee Seong-Ho (Department of Electronic & Information Engineering, Seoul National University of Technology)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.16, no.7, 2005 , pp. 746-752 More about this Journal
Abstract
In this paper, optical noise effect is reduced by using the loss characteristics of plastic fibers in an optical wireless system. The attenuation coefficient of a plastic fiber for the signal is different from that f3r the noise light, and the length difference between two fibers to the 2PD's behaves like a discriminative element. It is possible to eliminate the optical noise effect and detect only the signal without optical filters. The signal to noise ratio in a differential detector using fibers was 9.7 dB higher than in a single photodiode without optical fiber.
Keywords
Optical Noise; Optical Wireless System; Differential Detector; Plastic Fiber;
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