Title :
Patterning effects in quantum dot amplifiers characterized through pump probe spectroscopy using two pump pulses
Author :
Berg, T.W. ; van der Poel, M. ; Laemmlin, M. ; Bimberg, D. ; Birkedal, D.
Author_Institution :
Res. Center COM, Tech. Univ. Denmark, Lyngby, Denmark
Abstract :
Patterning effects at ultrahigh bitrates in quantum dot amplifiers are investigated by a novel experimental technique. Slow carrier dynamics in the excited states and wetting layer are found to limit the potential for ultrahigh-speed signal processing.
Keywords :
excited states; high-speed optical techniques; optical beam splitters; optical information processing; optical pumping; quantum dot lasers; semiconductor optical amplifiers; carrier dynamics; excited states; patterning effects; pump probe spectroscopy; quantum dot amplifiers; ultrahigh bitrates; ultrahigh-speed signal processing; wetting layer; Bit rate; Delay; Optical amplifiers; Optical signal processing; Probes; Pulse amplifiers; Quantum dots; Semiconductor optical amplifiers; Spectroscopy; US Department of Transportation;
Conference_Titel :
Lasers and Electro-Optics Society, 2004. LEOS 2004. The 17th Annual Meeting of the IEEE
Print_ISBN :
0-7803-8557-8
DOI :
10.1109/LEOS.2004.1363415
