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Journal Article
Cost-Effective Transition to 40 Gb/s Line Rate Using the Existing 10 Gb/s-Based DWDM Infrastructure
- Authors
- Sang Soo Lee, Hyun Woo Cho, Sang Kyu Lim, Dong Soo Lee, Kyeong Mo Yoon, Yong Gi Lee, Kwang Joon Kim, Je Soo Ko
- Issue Date
- 2008-04
- Citation
- ETRI Journal, v.30, no.2, pp.261-267
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Project Code
- 07MT1700, ASON based Metro Photonic Cross-Connect Technology, Kim Kwangjoon
- Abstract
- In this paper, we propose and demonstrate a cost-effective technique to upgrade the capacity of dense wavelength division multiplexing (DWDM) networks to a 40 Gb/s line rate using the existing 10 Gb/s-based infrastructure. To accommodate 40 Gb/s over the link optimized for 10 Gb/s, we propose applying a combination of super-FEC, carrier-suppressed return-to-zero, and pre-emphasis to the 40 Gb/s transponder. The transmission of 40 Gb/s DWDM channels over existing 10 Gb/s line-rate long-haul DWDM links, including 40×40 Gb/s transmission over KT's standard single-mode fiber optimized for 10 Gb/s achieves successful results. The proposed upgrading technique allows the Q-value margin for a 40 Gb/s line rate to be compatible with that of 10 Gb/s.
- KSP Keywords
- 40 gb/s, Carrier-suppressed return-to-zero(CSRZ), Dense wavelength division multiplexing(DWDM-PON), Long-haul, Pre-Emphasis, Single-mode fiber(SMF), Standard single-mode fiber, Wavelength Division Multiplexing(WDM), cost-effective, line rate, q-value