Enhanced Performance Utilizing Joint Processing Algorithm for CAP Signals

In this paper, we propose a joint processing algorithm for carrierless amplitude and phase modulation (CAP) signal to improve the system performance in both short-reach and metro network. Utilizing our proposed method, 112 Gb/s/λ CAP-64 quadrature amplitude modulation (QAM)-based transmission over 5...

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Bibliographic Details
Published inJournal of lightwave technology Vol. 36; no. 16; pp. 3169 - 3175
Main Authors Shi, Jianyang, Zhou, Yingjun, Zhang, Junwen, Chi, Nan, Yu, Jianjun
Format Journal Article
LanguageEnglish
Published IEEE 15.08.2018
Subjects
Computational complexity
Equalizers
Filtering algorithms
LMS
MIMO
nonlinear equations
Optical fiber communication
Optical fiber filters
Quadrature amplitude modulation
Receivers
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ISSN0733-8724
1558-2213
DOI10.1109/JLT.2018.2834721

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Summary:In this paper, we propose a joint processing algorithm for carrierless amplitude and phase modulation (CAP) signal to improve the system performance in both short-reach and metro network. Utilizing our proposed method, 112 Gb/s/λ CAP-64 quadrature amplitude modulation (QAM)-based transmission over 50 km of standard single mode fiber (SSMF) is experimentally achieved with a bandwidth-limited direct-detection receiver under the hard decision forward error correction (HD-FEC) threshold of 3.8 × 10 -3 . Furthermore, we experimentally demonstrate 112 Gb/s/λ CAP-16 QAM transmission over 480 km of SSMF with direct detection. With our proposed joint processing algorithm, both nonlinearity and In-phase/quadrature (IQ) imbalance can be mitigated. More than 3 dB receiver sensitivity gain is achieved at the HD-FEC threshold after 400-km transmission compared with the result using traditional nonlinear compensation.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2018.2834721