Title :
Microwave signal processing based on ultrafast dynamics in quantum dot waveguides
Author :
Chen, Yaohui ; Mork, Jesper
Author_Institution :
Dept. of Photonics Eng., Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
In this paper we review theoretical work on slow and fast light effects in quantum dot (QD) semiconductor waveguides and the potential applications in microwave photonics. In particular we emphasize the unique ultrafast carrier dynamics occurring between discrete QD bound states and its influence on the dynamic gain grating and cross gain modulation in QD semiconductor optical amplifiers (SOAs). The exploitation of ultrafast carrier dynamics enables the realization of phase shifters at frequencies in the range of 100 GHz.
Keywords :
microwave phase shifters; microwave photonics; semiconductor optical amplifiers; semiconductor quantum dots; signal processing; cross gain modulation; discrete quantum dot bound states; dynamic gain grating; frequency 100 GHz; microwave photonics; microwave signal processing; phase shifters; quantum dot semiconductor optical amplifier; quantum dot semiconductor waveguides; ultrafast carrier dynamics; ultrafast dynamics; Fast light; Gratings; Microwave photonics; Optical waveguide theory; Optical waveguides; Quantum dots; Quantum mechanics; Semiconductor optical amplifiers; Semiconductor waveguides; Signal processing; Quantum dots; microwave photonics; semiconductor optical amplifier;
Conference_Titel :
Transparent Optical Networks (ICTON), 2010 12th International Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-7799-9
Electronic_ISBN :
978-1-4244-7797-5
DOI :
10.1109/ICTON.2010.5549185
