NDLI: Multi-Tap Equalization for Performance Improvement in Optical Fast OFDM Systems

Content Provider	IEEE Xplore Digital Library
Author	Jian Zhao
Copyright Year	1989
Abstract	We show that multi-tap equalization can significantly enhance the tolerance to laser frequency instability and phase noise in optical fast orthogonal frequency division multiplexing (OFDM) systems. We demonstrate the transmission of a 38-Gb/s 16 quadrature amplitude modulation coherent optical fast OFDM signal over 1000-km single-mode fiber using different types of lasers. It is shown that with this technique, the receiver sensitivity can be greatly improved and overhead for carrier frequency offset estimation to track the wavelength can be reduced for commercial lasers. This verifies the benefits of the technique in a continuous-mode optical communication system. We also show that the performance of multi-tap equalization in optical fast OFDM can be better than that in conventional OFDM, and an experiment using lasers with frequency modulation to emulate frequency oscillating effect during wavelength transition shows that optical fast OFDM can be a more potential multicarrier solution for wavelength-selective optical packet networks.
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	42
Ending Page	45
Page Count	4
File Size	910259
File Format	PDF
ISSN	10411135
Volume Number	27
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
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 fibers OFDM Optical receivers Optical noise Equalizers Bit error rate coherent detection Orthogonal frequency division multiplexing equalization
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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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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