Title :
Noise in wavelength conversion by cross-gain modulation in a semiconductor optical amplifier
Author :
Pegg, S.I. ; Fice, M.J. ; Adams, M.J. ; Hadjifotiou, A.
Author_Institution :
Dept. of Phys., Essex Univ., Colchester, UK
fDate :
6/1/1999 12:00:00 AM
Abstract :
A study of the noise properties of wavelength conversion using cross-gain modulation in a semiconductor optical amplifier (SOA) has been made, emphasising the effect on system performance. Experimentally, amplified spontaneous emission noise added to the pump beam was used to simulate this signal having passed through a number of erbium-doped fiber amplifiers. Results indicate that improvements in detected Q factor can be observed if the SOA is operated under high saturation conditions, and a simple steady-state nonlinear gain model accounts for these results quite accurately.
Keywords :
Q-factor; electro-optical modulation; laser noise; optical frequency conversion; optical pumping; optical transmitters; semiconductor optical amplifiers; superradiance; wavelength division multiplexing; amplified spontaneous emission noise; cross-gain modulation; detected Q factor; erbium-doped fiber amplifiers; high saturation conditions; noise properties; pump beam; semiconductor optical amplifier; steady-state nonlinear gain model; system performance; wavelength conversion; Erbium-doped fiber amplifier; Laser excitation; Optical noise; Optical wavelength conversion; Q factor; Semiconductor device noise; Semiconductor optical amplifiers; Spontaneous emission; Steady-state; System performance;
Journal_Title :
Photonics Technology Letters, IEEE
