Quantum Dot Semiconductor Optical Amplifier at 1.3micrometer for Ultra-Fast Cross-Gain Modulation

Conference: ECOC 2007 - 33rd European Conference and Exhibition of Optical Communication
09/16/2007 - 09/20/2007 at Berlin, Germany

Proceedings: ECOC 2007

Pages: 2Language: englishTyp: PDF

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Vallaitis, T.; Koos, C.; Bolles, B.-A.; Bonk, R.; Freude, W.; Leuthold, J. (Institute of High-Frequency and Quantum Electronics, University of Karlsruhe, 76131 Karlsruhe, Germany)
Laemmlin, M.; Meuer, C.; Bimberg, D. (Institut fr Festkrperphysik, Technische Universitt Berlin, Hardenbergstr. 36, 10623 Berlin, Germany)

Measured gain and phase dynamics of InAs/GaAs quantum dot amplifiers reveal small α-factors. This enables ultra-fast cross-gain modulation which speeds up with increasing injection current and depends only weakly on the optical peak power.