NDLI: Using duobinary with first- and second-order optical equalisers for extending transmission distance of optical access networks

Content Provider	IET Digital Library
Author	Nhat, Nguyen Dong Nguyen, Lim Malekmohammadi, Amin
Abstract	This study presents the external modulation and direct detection of duobinary signal in optical access networks at 25 and 50 Gb/s with the use of first-order optical equaliser at the transmitter output (pre-equalisation) to compensate the waveform distortion induced by fibre dispersion. The first-order optical equaliser is then replaced by second-order optical equaliser to further improve the bit error rate (BER) performance and extend the maximum transmission distance by compensating the residual dispersion for the first time. The authors explain the enhancement in the BER by analysing the eye diagrams and optical spectra. The authors also investigate non-return-to-zero signal with similar setup parameters for reference.
Starting Page	239
Ending Page	243
Page Count	5
ISSN	17518768
Volume Number	12
e-ISSN	17518776
Issue Number	Issue 5, Oct (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-opt/12/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-opt.2018.0003
Journal	IET Optoelectronics
Publisher Date	2018-04-30
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	BER Bit Error Rate Communication Channel Equalisation And Identification Direct Detection Dispersion And Attenuation in Fibres Duobinary Signal Equaliser Equipment And System Error Statistics External Modulation Eye Diagrams Fibre Dispersion Fibre Optics First-order Optical Equaliser Modulation Modulation And Coding Method Nonreturn-to-zero Signal Optical Access Network Optical Communication Device Optical Communication Equipment Optical Fibre Dispersion Optical Fibre Network Optical Fibre Subscriber Loops Optical Propagation Optical Spectra Optical Transmitters Residual Dispersion Second-order Optical Equaliser Transmission Distance Transmitter Waveform Distortion
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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