| Compensation Characteristics Dependence on the Position of Optical Phase Conjugator in 320 Gbps WDM System |
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Seong-Real Lee1, Hwang-Bin Yim2 |
1Div. of Marine Electro and Comm. Eng., Mokpo National Maritime University
2Dept. of Inform. & Comm. Eng Gangwon Provincial University |
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| Abstract |
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In this paper, optimal position of optical phase conjugator(OPC) for best compensating distorted WDM channels due to both chromatic dispersion and self phase modulation(SPM) is numerically investigated, and the compensation characteristics of overall WDM channels at this position is investigated, comparing with that in case of OPC placed at mid-way of total transmission length. It is confirmed that the compensation extents in WDM system with OPC is more improved by the shifting OPC position from the mid-way of total transmission length. And, we confirmed that the optimal position of OPC must be selected to the position decreasing not only eye opening penalty(EOP) of overall WDM channels but also EOP deviation between WDM channels, and this OPC position should be altered as various system parameters such as modulation format, and fiber dispersion, etc. Using proposed configuration, it is possible to remove all in-line dispersion compensator, reducing span losses and system costs. |
| Key words:
Optical Phase Conjugator(OPC), Highly-Nonlinear Dispersion Shifted Fiber(HNL-DSF), Mid-Span Spectral Inversion(MSSI), WDM |
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