All-optical regeneration and demultiplexing for 160-gb/s transmission systems using a NOLM-based three-stage scheme

An all-optical pulse regenerator suitable for 160-Gb/s transmission systems, including three stages based on nonlinear optical loop mirrors, is proposed. The idea of splitting the regeneration process in three different steps allows the use of easy and well-known ultrafast subsystems. This approach...

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Bibliographic Details
Published in:IEEE journal of selected topics in quantum electronics 2004-01, Vol.10 (1), p.192-196
Main Authors: Bogoni, A., Ghelfi, P., Scaffardi, M., Poti, L.
Format: Article
Language:English
Subjects:
Bit rate
Demultiplexing
Jitter
Mirrors
Noise reduction
Nonlinear optics
Optical noise
Optical pulses
Repeaters
Ultrafast optics
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Summary:An all-optical pulse regenerator suitable for 160-Gb/s transmission systems, including three stages based on nonlinear optical loop mirrors, is proposed. The idea of splitting the regeneration process in three different steps allows the use of easy and well-known ultrafast subsystems. This approach offers advantages in terms of maximum bit rate of the signals that can be regenerated. The significant signal improvement in terms of noise reduction, pulse reshaping, and jitter suppression introduced by the regenerator is experimentally evaluated. A Q-factor increase from 3.2 to 6.3 was measured for the eye diagram. Since the presented scheme can also be exploited as a regenerating demultiplexer, simultaneous regeneration and demultiplexing functions are implemented for data signals up to 160 Gb/s.
ISSN:1077-260X
1558-4542
DOI:10.1109/JSTQE.2003.822920