A Low-Cost Inband FEC Scheme for SONET/SDH Optical Metro Networks

A novel inband forward-error correction (FEC) method, devised for the electronic-mitigation of physical optical transmission impairments, is implemented and experimentally demonstrated. The proposed inband-FEC scheme, Free-Of-Charge Uniform Shield (FOCUS), is an inherently low-cost approach, applica...

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Bibliographic Details
Published in:IEEE photonics technology letters 2006-12, Vol.18 (24), p.2581-2583
Main Authors: Tychopoulos, A., Papagiannakis, I., Klonidis, D., Tzanakaki, A., Kikidis, J., Koufopavlou, O., Tomkos, I.
Format: Article
Language:English
Subjects:
All-optical networks
Coding
Computing time
Costs
Degradation
Forward-error correction (FEC)
Impairment
inband forward-error correction (FEC) coding
metropolitan area networks
Networks
Optical communication
Optical fiber communication
Optical fiber networks
Optical noise
Optical propagation
Photonics
Signal to noise ratio
SONET
Synchronous
Synchronous digital hierarchy
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Summary:A novel inband forward-error correction (FEC) method, devised for the electronic-mitigation of physical optical transmission impairments, is implemented and experimentally demonstrated. The proposed inband-FEC scheme, Free-Of-Charge Uniform Shield (FOCUS), is an inherently low-cost approach, applicable to standard synchronous digital hierarchy/synchronous optical network rates, allowing optically transparent signal propagation over longer distances. The performance/efficiency of the FOCUS method is evaluated in terms of tolerance against optical signal-to-noise ratio degradation and chromatic-dispersion, associated with the signal transmission over standard single-mode fiber. Bit-error-rate measurements and coding gain calculations at the standard STM-64 rate (9.953 Gb/s) reveal significant coding-gain improvement for all cases examined
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2006.887345