Phase dynamics of semiconductor optical amplifiers at 10-40 GHz

2003 ◽  
Vol 39 (11) ◽  
pp. 1394-1408 ◽  
Author(s):  
L. Schares ◽  
C. Schubert ◽  
C. Schmidt ◽  
H.G. Weber ◽  
L. Occhi ◽  
...  
Keyword(s):  
Optical Amplifiers ◽  
Semiconductor Optical Amplifiers ◽  
Phase Dynamics

scholarly journals Phase dynamics of InAs∕GaAs quantum dot semiconductor optical amplifiers

2007 ◽  
Vol 91 (26) ◽  
pp. 263506 ◽  
Author(s):  
I. O‘Driscoll ◽  
T. Piwonski ◽  
J. Houlihan ◽  
G. Huyet ◽  
R. J. Manning ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Optical Amplifiers ◽  
Semiconductor Optical Amplifiers ◽  
Phase Dynamics ◽  
Gaas Quantum Dot

COMPARISON BETWEEN ULTRAFAST GAIN AND PHASE DYNAMICS IN SEMICONDUCTOR OPTICAL AMPLIFIERS

2010 ◽  
Vol 19 (02) ◽  
pp. 319-325
Author(s):  
LI WANG ◽  
ZHI WANG ◽  
WEI-PING HUANG
Keyword(s):  
Optical Amplifiers ◽  
Broad Band ◽  
Semiconductor Optical Amplifiers ◽  
Hole Burning ◽  
Spectral Hole Burning ◽  
Ultrafast Dynamics ◽  
Carrier Heating ◽  
Phase Dynamics ◽  
Spectral Hole ◽  
Bulk Semiconductor

The ultrafast dynamics of gain and phase in bulk semiconductor optical amplifiers are numerically investigated over a broad band of about 200 nm based on the semiclassical method of density matrix equations. The gain dynamics and phase dynamics are compared in four different bands for 200 fs Gaussian pump pulse. It is predicted that the recovery time of phase may be longer or shorter than that of gain depending on probe wavelengths. Furthermore, phase recovery overshoot may appear at wavelengths shorter than the pump wavelength. These interesting features result from the competition between spectral-hole burning and carrier heating over the whole band.

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