Reduction of mode partition noise by using semiconductor opticalamplifiers

摘要

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