Title :
Gain and phase recovery of optically excited semiconductor optical amplifiers
Author :
Giller, Robin ; Manning, Robert J. ; Cotter, David
Author_Institution :
Dept. of Phys., Univ. Coll. Cork, Ireland
fDate :
5/1/2006 12:00:00 AM
Abstract :
An investigation of the recovery dynamics of semiconductor optical amplifiers (SOAs) explains why the ultrafast component of the gain recovery is largely absent in the phase response. The time-resolved gain and phase dynamics of a bulk GaInAs SOA are measured using a pump-probe technique and differences between the gain and phase recoveries are highlighted and explained using Kramers-Kronig analysis. These have important implications for optical signal processing.
Keywords :
III-V semiconductors; Kramers-Kronig relations; gallium compounds; high-speed optical techniques; indium compounds; nonlinear optics; semiconductor device models; semiconductor optical amplifiers; GaInAs; Kramers-Kronig analysis; SOA; gain recovery; optical signal processing; phase recovery; pump-probe technique; semiconductor optical amplifiers; Optical attenuators; Optical filters; Optical pulses; Optical pumping; Optical signal processing; Probes; Pulse modulation; Semiconductor optical amplifiers; Stimulated emission; Ultrafast optics; Nonlinear optics; optical signal processing; semiconductor device modeling; semiconductor optical amplifiers (SOAs); ultrafast optics;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.873474
