Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/4521
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Title: Fiber Bragg grating for spectral phase optical code-division multiple-access encoding and decoding
Authors: Fang, X
Wang, D 
Li, S
Issue Date: 1-Aug-2003
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.
Keywords: Bandwidth
Code division multiple access
Correlation methods
Decoding
Fiber Bragg gratings
Fourier transforms
Phase shift
Spectrum analysis
Publisher: Optical Society of America
Journal: Journal of the Optical Society of America B : optical physics 
ISSN: 0740-3224
EISSN: 1520-8540
DOI: 10.1364/JOSAB.20.001603
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: http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-20-8-1603. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
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