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Reduction of mode partition noise by using semiconductor optical amplifiers

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2 Author(s)
K. Sato ; NTT Network Innovation Labs., Kanagawa, Japan ; H. Toba

Reduction of mode partition noise induced by spectral filtering of Fabry-Perot lasers is demonstrated by using a semiconductor optical amplifier (SOA). Because the SOA acts as a high-pass filter, the mode partition noise appearing at low frequencies can be suppressed. A 16-dB recovery of the signal-to-noise ratio and a 6.2-dB recovery of the Q factor are obtained

Published in:

IEEE Journal of Selected Topics in Quantum Electronics  (Volume:7 ,  Issue: 2 )