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Title: Fiber Bragg grating for spectral phase optical code-division multiple-access encoding and decoding
Authors: Fang, Xiaohui
Wang, Dongning
Li, Shichen
Subjects: Bandwidth
Code division multiple access
Correlation methods
Fiber Bragg gratings
Fourier transforms
Phase shift
Spectrum analysis
Issue Date: 1-Aug-2003
Publisher: Optical Society of America
Source: Journal of the optical society of America B: optical physics, 1 Aug. 2003, v. 20, no. 8, p. 1603-1610.
Abstract: A new method for realizing spectral phase optical code-division multiple-access (OCDMA) coding based on step chirped fiber Bragg gratings (SCFBGs) is proposed and the corresponding encoder/decoder is presented. With this method, a mapping code is introduced for the m-sequence address code and the phase shift can be inserted into the subgratings of the SCFBG according to the mapping code. The transfer matrix method together with Fourier transform is used to investigate the characteristics of the encoder/decoder. The factors that influence the correlation property of the encoder/decoder, including index modulation and bandwidth of the subgrating, are identified. The system structure is simple and good correlation output can be obtained. The performance of the OCDMA system based on SCFBGs has been analyzed.
Rights: © 2003 Optical Society of America. This paper was published in Journal of the Optical Society of America B and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Type: Journal/Magazine Article
DOI: 10.1364/JOSAB.20.001603
ISSN: 0740-3224
Appears in Collections:EE Journal/Magazine Articles

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