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Performance Improvement of WDM Channels using Inline Dispersion Management in Transmission Link with OPC Placed at Various Position  

Lee, Seong-Real (Div. of Marine Electro. & Comm. Eng., Mokpo National Maritime University)
Publication Information
Journal of Advanced Navigation Technology / v.14, no.5, 2010 , pp. 668-676 More about this Journal
Abstract
Optimal net residual dispersions (NRDs) of inline dispersion management (DM) for compensating the signal distortion of $24{\times}40$ Gbps WDM channels in optical transmission links, in which optical phase conjugator (OPC) is placed from 250 km to 750 km by spacing 50 km in 1,000 km total transmission length of single mode fiber (SMF), are induced as a function of various ope positions. And, performance improvement of WDM channels in transmission links with the induced optimal NRD is investigated by comparing with that in transmission links with NRD = 0 ps/nm. It is confirmed that optimal NRDs are decided by displacement of OPC from mid-way of total transmission length, i.e. 500 km, and the determinating and applying of optimal NRD in case of ope displacement into transmitters is more stable and effective than that in case of ope displacement into receivers from 500 km. Also, it is shown that eye opening penalties (EOPs) of WDM channels in transmission links with optimal NRD are improved by 1.5 dB to 3 dB, which are related with OPC position, from that obtained in transmission links with fixed NRD of 0 ps/nm.
Keywords
Inline Dispersion management; Net residual dispersion; WDM; pre(post)compensation; Optical phase conjugator; OPC position;
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Times Cited By KSCI : 4  (Citation Analysis)
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