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Characteristics of Compensation for WDM Transmission with Equally Spaced Channels using Mid-Span Spectral Inversion  

이성렬 (목포해양대학교 해양전자ㆍ통신공학부)
임황빈 (강원도립대학 정보통신과)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.15, no.6, 2004 , pp. 619-626 More about this Journal
Abstract
In this paper, we investigated the compensation characteristics of distorted 16-channel WDM signal due to chromatic dispersion self phase modulation(SPM) and four-wave mixing(FWM). The bit rate and uniform frequency spacing of WDM channels are assumed to be 40 Gbps and 100 ㎓, respectively. The compensation method used in this approach is mid- span spectral inversion(MSSI), Highly-nonlinear dispersion shifted fiber(HNL-DSF) is used as a nonlinear medium of optical phase conjugator(On) in order to widely compensate WDM signal band. We confirmed that applying MSSI in WDM channels within special input power level compensates overall interferenced channels mainly due to FWM. But for long wavelength WDM channels having lower conjugated light power with respect to signal light power, compensation quality is deteriorated as dispersion coefficient of fiber becomes higher. Consequently, we confirmed that it is effective D apply MSSI with HNL-DSF as a nonlinear medium of OPC to WDM transmission link with relative small dispersion in order to compensate equally spaced WDM channels.
Keywords
Optical Phase Conjugator(OPC); Highly-Nonlinear Dispersion Shifted Fiber(HNL-DSF); Four-Wave Mixing(FWM); Mid-Span Spectral Inversion(MSSl); Inter-channel Intereference(ISI);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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