428-Gb/s single-channel coherent optical OFDM transmission over 960-km SSMF with constellation expansion and LDPC coding.
ABSTRACT High-order modulation formats and advanced error correcting codes (ECC) are two promising techniques for improving the performance of ultrahigh-speed optical transport networks. In this paper, we present record receiver sensitivity for 107 Gb/s CO-OFDM transmission via constellation expansion to 16-QAM and rate-1/2 LDPC coding. We also show the single-channel transmission of a 428-Gb/s CO-OFDM signal over 960-km standard-single-mode-fiber (SSMF) without Raman amplification.
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ABSTRACT: Optical fiber communications continued to advance at a rapid pace in 2010. This paper presents a brief overview of the most exciting technological advances of 2010, eking out record capacity out of optical fiber through enhancing spectral efficiency and shrinking power consumption using modern optical fiber communication system designs.IEEE Photonics Journal 04/2011; 3(2):320-324. DOI:10.1109/JPHOT.2011.2131123 · 2.33 Impact Factor
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ABSTRACT: A simplified closed form expression for the noise power due to four-wave mixing in coherent OFDM systems is derived. The proposed model is in very good agreement with the exact model. The derived analytical expressions can be used in performance evaluation of systems employing CO-OFDM with any number of subcarriers and/or as an integral part of physical layer aware routing algorithms.Optics Express 11/2014; 22(23). DOI:10.1364/OE.22.028316 · 3.53 Impact Factor
Conference Paper: Physical-layer network coding in optical networks[Show abstract] [Hide abstract]
ABSTRACT: Physical-Layer Network Coding (PNC) is a promising technique to improve the network throughput of full-duplex transmission in a wireless two-way relay channel. Here, we explore the application of PNC in optical systems and networks. Two transmitted optical signal frames are simply added together to form an optical PNC-coded composite frame, which shares the same network channel/resource. At their destined node, the composite signal is directly-detected, before being decoded by subtracting one of the two transmitted signal frames, which is either already known or stored locally, from the received PNC-coded composite frame.Optical Communications and Networks (ICOCN), 2013 12th International Conference on; 01/2013