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

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...

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Bibliographic Details
Published in:IEEE photonics journal 2021-12, Vol.13 (6), p.1-5
Main Authors: Kaje, Kishanram, AL-QADI, Mustafa, Hui, Rongqing
Format: Article
Language:English
Subjects:
backpropagation
Compensation
EDC
fiber dispersion
Fiber nonlinear optics
Fiber optics
fiber optics communication
Kramers-Kronig
Nonlinear optics
Nonlinearity
Optical attenuators
Optical fibers
Optical receivers
Optical transmitters
QAM16
Semiconductor optical amplifiers
SOA
SSBI
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Summary: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.
ISSN:1943-0655
1943-0655
1943-0647
DOI:10.1109/JPHOT.2021.3122578