Abstract
A cost-effective optical performance monitoring system,
based on link-by-link optical signal-to-noise ratio (OSNR) estimation, is
proposed for a dynamic transparent optical network. The proposed technique
estimates the OSNR by monitoring the channel powers at the input and output
of each optical link and the total input power to the inline EDFAs. In-band
OSNR monitoring was successfully demonstrated at 42.7 Gb/s RZ-DQPSK signals,
reflecting the transmission performance.
© 2008 IEEE
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