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학술지 Transmission of 112 Gb/s Dual-Carrier DQPSK Signal over 10 Gb/s-Based WDM Optical Links
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저자
장순혁, 정환석, 이정찬, 김광준, 이종현
발행일
201303
출처
Optical Fiber Technology, v.19 no.2, pp.67-74
ISSN
1068-5200
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.yofte.2012.11.004
협약과제
12VI1400, 차세대 광전달망 구축을 위한 테라급 광-회선-패킷 통합 스위칭 시스템 기술개발, 이종현
초록
The 112 Gb/s dual-carrier differential quadrature phase shift keying (DC-DQPSK) optical transceiver, which does not need digital signal processing and coherent detection, is proposed for cost-effective 100G transport solution. In this paper, we describe upgrade schemes of 10 Gb/s-based WDM optical links by adopting 112 Gb/s DC-DQPSK transceiver, while the dispersion of the optical links is compensated 100% at each span. Method of introducing the DC-DQPSK signal into single grid of 100 GHz spaced WDM link is demonstrated. Performance sufficient for error-free operation after forward error correction is achieved over 640 km standard single mode fiber (SSMF) link. In another method, we experimentally investigate the transmission performance with co-propagating 10.7 Gb/s on-off-keying (OOK) signals over 1000 km of SSMF when the dual carriers occupy two channel grids separately. Excellent tolerance to the nonlinearities impacted by the OOK signals and low optical signal-to-noise ratio requirement are verified to demonstrate superior transmission performance in 10 Gb/s-based WDM links. © 2012 Elsevier Inc. All rights reserved.
키워드
Optical fiber communication, Optical modulation, Polarization
KSP 제안 키워드
Coherent Detection, Digital Signal Processing, Dual carrier, Forward error correction(FEC), ON-OFF keying(OOK), Optical Signal-To-Noise Ratio(OSNR), Optical Transceiver, Optical fiber communications, Signal noise ratio(SNR), Single grid, Single-mode fiber(SMF)