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Compensation for the Distorted Signals in WDM System with Non Zero-Dispersion Shifted Fiber Using Optical Phase Conjugator  

Lee Seong-Real (Div. of Marine Electro. & Comm. Eng., Mokpo National Maritime Univ.)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.17, no.6, 2006 , pp. 546-555 More about this Journal
Abstract
In this paper, the numerical methods of finding the optimal position of optical phase conjugator(OPC) and the optimal fiber dispersions are proposed, which are able to effectively compensate overall channels in $8{\times}40$ Gbps WDM system with non zero-dispersion shifted fiber(NZ-DSF) as an optical fiber. And the compensation characteristics in the system with two induced optimal parameters are compared with those in the system with mid-span spectral inversion (MSSI) technique in order to confirm the availability of the proposed methods. It is confirmed that the optimal parameter values induced in this approach are very useful to effectively compensate overall channels in WDM system with OPC. And, it is confirmed that two optimal parameters depend on each other, but less related with the searching procedure. The methods proposed in this research will be expected to alternate with the method of making a symmetrical distribution of power and local dispersion in real optical link which is a serious problem of applying the OPC into multi-channels WDM system.
Keywords
Optical Phase Conjugator; Mid-Span Spectral Inversion; WDM; NZ-DSF; Optimal Parameters;
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