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학술지 Cost-Effective Transition to 40 Gb/s Line Rate Using the Existing 10 Gb/s-Based DWDM Infrastructure
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저자
이상수, 조현우, 임상규, 이동수, 윤경모, 이용기, 김광준, 고제수
발행일
200804
출처
ETRI Journal, v.30 no.2, pp.261-267
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.08.1107.0036
협약과제
07MT1700, ASON 기반의 메트로 광 회선 분배 기술개발, 김광준
초록
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.
키워드
40 Gb/s, Forward error correction, Modulation format, Optical communications, Optical link, Optical signal-to-noise ratio, Q-value
KSP 제안 키워드
40 gb/s, Carrier-suppressed return-to-zero(CSRZ), Dense wavelength division multiplexing(DWDM-PON), Forward error correction(FEC), Long-haul, Modulation format, Optical Signal-To-Noise Ratio(OSNR), Pre-Emphasis, Signal noise ratio(SNR), Single-mode fiber(SMF), Standard single-mode fiber