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Research On Dispersion Compensation Technologies In 40Gbps Single Channel Optical Fiber Communication

Posted on:2007-03-27Degree:MasterType:Thesis
Country:ChinaCandidate:Q PanFull Text:PDF
GTID:2178360182977867Subject:Communication and Information System
Abstract/Summary:PDF Full Text Request
With the development of social informatization, the bit rate and the transmission distance of optical fiber communication are continually increasing. In high speed optic communication systems of 40G and above, the effect of dispersion to system has drawn more attention nowadays. Dispersion may be the ultimately limited factor in transmission capacity. Recently several dispersion-compensation schemes have been developed to address the dispersion problem. The underlying techniques and the improvements realized in practice of these methods are very different. What we need is some techniques which are proved to be an efficient and promising method to be used in ultralong transmission and for upgrading installed links at high bit rates. First a deep research of the theory and simulation of dispersion and nonlinearity is made, and the effects of fiber nonlinearity on optical pulse that transmitted positive or negative dispersion fiber are analyzed. Then the optimal design of a single channel 40Gbps system and the influence of the dispersion compensation on systems are given. This work has been simulated on the VPITransmissionmaker platform, and has resulted in some conclusions that are useful in practical system. A summary of the correlational concepts of PMD and its statistics nature is given in chapter 4. First-order PMD dynamic compensation and its simulation are achieved by use of Q factor as feedback control signals, and the control arithmetic is also shown.
Keywords/Search Tags:chromatic dispersion, Polarization Mode Dispersion, dispersion compensation, Self-Phase Modulation, chirp
PDF Full Text Request
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