Title :
Reduction of mode partition noise by using semiconductor optical amplifiers
Author :
Sato, Kenji ; Toba, Hiromu
Author_Institution :
NTT Network Innovation Labs., Kanagawa, Japan
Abstract :
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
Keywords :
Q-factor; high-pass filters; laser noise; laser theory; optical filters; semiconductor device models; semiconductor device noise; semiconductor optical amplifiers; Fabry-Perot lasers; Q factor; high-pass filter; low frequencies; mode partition noise; semiconductor optical amplifier; semiconductor optical amplifiers; signal-to-noise ratio; spectral filtering; Fabry-Perot; Filtering; Laser modes; Low-frequency noise; Noise reduction; Optical filters; Optical noise; Semiconductor device noise; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.954146
