NDLI: A Robust Adaptive Pre-Distortion Method for Optical Communication Transmitters

Content Provider	IEEE Xplore Digital Library
Author	Khanna, G. Spinnler, B. Calabro, S. De Man, E. Hanik, N.
Copyright Year	1989
Abstract	Present and next generation optical communication systems are constantly being developed to operate at higher baud rates and higher modulation formats. It then becomes inevitable to consider the various linear and nonlinear effects due to the imperfect components at the transmitter. State-of-the-art digital-to-analog converters, high bandwidth driver amplifiers, and dual-polarization (DP) Mach–Zehnder modulators are far from being ideal and present distortions in the form of bandwidth limitation, transmitter I/Q skew, and nonlinear effects. In this letter, we propose a new robust pre-distortion method to mitigate the undesirable linear and non-linear distortions of all electrical and optical transmitter components simultaneously. A step-by-step derivation and implementation of the algorithm are discussed and put forward. The performance of the algorithm is experimentally assessed across DP-4QAM, DP-8QAM, DP-16QAM, DP-32QAM, and DP-64QAM up to the signaling rates of 56 GBd. Significant improvements in the required optical signal-to-noise ratio at bit-error rate (BER) of $10^{-2}$ are demonstrated.
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	752
Ending Page	755
Page Count	4
File Size	847093
File Format	PDF
ISSN	10411135
Volume Number	28
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2016-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical transmitters Bandwidth Optical receivers Nonlinear optics Optical feedback Optical distortion Frequency response digital signal processing Volterra series non-linear system with memory pre-distortion high baud rate system high modulation formats transmitter limitations
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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