Service differentiated drop code unit for metro ring optical networks
Ahmad Anas, Siti Bariah and Quinlan, Terence J. and Walker, Stuart D. (2010) Service differentiated drop code unit for metro ring optical networks. IET Optoelectron, 4 (1). pp. 46-50. ISSN 1751-8768
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The authors demonstrate using both simulation and experiment, a drop code unit for metro ring optical networks with service differentiation capability. This is achieved by means of a spectral amplitude coding technique whereby the code weight in a particular channel is varied to provide different signal quality levels. Transmission of three channels with different weights operating at 10 Gbps per channel was simulated over a 68 km unamplified and 185 km amplified links of dispersion compensated fibre. Services are perfectly dropped at bit error rates from 10−9 to 10−3, leaving the through service free from accumulated noise. The authors also present a 2.5 Gbps per channel proof-of-concept experiment over 40 km of single-mode fibre (SMF).
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