Digital Compensation of SOA-Induced Nonlinearities in Field-Modulated Direct-Detection Systems

Kishanram Kaje; Mustafa AL-QADI; Rongqing Hui

doi:10.1109/JPHOT.2021.3122578

IEEE Photonics Journal (Jan 2021)

Digital Compensation of SOA-Induced Nonlinearities in Field-Modulated Direct-Detection Systems

Kishanram Kaje,
Mustafa AL-QADI,
Rongqing Hui

Affiliations

Kishanram Kaje: ORCiD; Information and Telecommunication Technology Center, Department of Electrical Engineering and Computer Science, University of Kansas, Lawrence, KS, USA
Mustafa AL-QADI: ORCiD; Information and Telecommunication Technology Center, Department of Electrical Engineering and Computer Science, University of Kansas, Lawrence, KS, USA
Rongqing Hui: Information and Telecommunication Technology Center, Department of Electrical Engineering and Computer Science, University of Kansas, Lawrence, KS, USA

DOI: https://doi.org/10.1109/JPHOT.2021.3122578
Journal volume & issue: Vol. 13, no. 6
pp. 1 – 5

Abstract

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In this work we experimentally demonstrate the compensation of nonlinearities introduced by a semiconductor optical amplifier (SOA) operating as a power booster in a field-modulated direct detection fiber-optic system transmitter. We show that a combination of digital pre-compensation to deal with SOA nonlinearities, and digital post-compensation after Kramers-Kronig receiver for mitigating the impacts of chromatic dispersion and signal-signal beat interference (SSBI) is an effective scheme to gain ∼3dB in ROSNR in presence of SOA nonlinearity at 3dB of gain compression.

Published in IEEE Photonics Journal

ISSN: 1943-0655 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General): Applied optics. Photonics; Science: Physics: Optics. Light
Website: http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=4563994

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