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dc.contributor.authorAl-Qadi, Mustafa
dc.contributor.authorVedala, Govind
dc.contributor.authorO'Sullivan, Maurice
dc.contributor.authorXie, Chongjin
dc.contributor.authorHui, Rongqing
dc.identifier.citationM. Al-Qadi, G. Vedala, M. O'Sullivan, C. Xie and R. Hui, "QD-MLL-Based Single-Sideband Superchannel Generation Scheme With Kramers–Kronig Direct Detection Receivers," in IEEE Photonics Journal, vol. 11, no. 4, pp. 1-13, Aug. 2019, Art no. 7204013. doi: 10.1109/JPHOT.2019.2929485en_US
dc.descriptionThis work is licensed under a Creative Commons Attribution 4.0 International License.en_US
dc.description.abstractFor their capability of electronic dispersion compensation, transmission systems based on direct detection of single-sideband (SSB) signals are attractive candidates as energy-efficient and cost-effective alternative solutions to intradyne digital coherent systems for interdata center and metro applications. The Kramers-Kronig (KK) receiver scheme has been shown to provide superior performance compared to other schemes in signal-to-signal beat interference (SSBI) cancellation in these direct-detection systems. In this paper, we propose a low-complexity and cost-effective scheme of generating an optical superchannel comprising multiple SSB channels, based on a single quantum-dot mode-locked laser source. The proposed system does not require additional photonic or RF components at the transmitter to generate the required SSB signal with a continuous wave (CW) carrier. It also preserves the full digital-to-analog converters' bit resolution for data modulation, in contrast to other methods based on digital generation of the CW component. Simulations of system performance with KK receiver, based on measured laser output field, show that the proposed system can achieve bit-error ratio below the hard-decision forward error correction threshold for 16-QAM Nyquist SSB signals after transmission through three amplified spans of single-mode fiber in a 240-km link. Using 8 KK channels at 23 GBaud each, the proposed scheme will be able to achieve a transmission rate of 736 Gb/s with noncoded spectral efficiency of 2.45 b/s/Hz. The impacts of carrier-to-signal power ratio, per channel launch power into the fiber, and component frequency drifting on transmission system performance are also discussed.en_US
dc.publisherInstitute of Electrical and Electronics Engineersen_US
dc.rights© 2019 CCBY.en_US
dc.subjectSingle-sideband transmissionen_US
dc.subjectKramers–Kronig receiversen_US
dc.subjectQuantum-dot mode-locked lasersen_US
dc.titleQD-MLL-Based Single-Sideband Superchannel Generation Scheme With Kramers–Kronig Direct Detection Receiversen_US
kusw.kuauthorAl-Qadi, Mustafa
kusw.kuauthorVedala, Govind
kusw.kuauthorHui, Rongqing
kusw.kudepartmentElectrical Engineering & Computer Scienceen_US
kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US

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© 2019 CCBY.
Except where otherwise noted, this item's license is described as: © 2019 CCBY.