Title :
Enhancing Small-Signal Cross-Gain Modulation of Quantum-Dot Optical Amplifiers by Injecting Carriers to Excited States
Author :
Kim, Jung-Ho ; Laemmlin, M. ; Meuer, C. ; Liebich, S. ; Bimberg, Dieter ; Eisenstein, Gadi
Author_Institution :
Inst. fuer Festkoerperphys., Tech. Univ. Berlin, Berlin, Germany
Abstract :
We numerically and experimentally demonstrate that high-speed small-signal cross- gain modulation of quantum-dot optical amplifiers can be improved by injecting carriers to excited states, which increases the amplifier´s gain recovery time due to spectral hole burning.
Keywords :
optical hole burning; optical modulation; quantum dot lasers; semiconductor optical amplifiers; cross-gain modulation; excited states; injecting carriers; quantum-dot optical amplifiers; small-signal modulation; spectral hole burning; High speed optical techniques; Nonlinear optics; Optical amplifiers; Optical modulation; Optical saturation; Optical signal processing; Optical wavelength conversion; Quantum dots; Semiconductor optical amplifiers; Stimulated emission;
Conference_Titel :
Optical Fiber communication/National Fiber Optic Engineers Conference, 2008. OFC/NFOEC 2008. Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-55752-856-8
DOI :
10.1109/OFC.2008.4528576
