Open AccessControllable delay of ultrashort pulses in a quantum dot optical amplifier
Author(s) -
Mike van der Poel,
Jesper Mørk,
Jørn Märcher Hvam
Publication year - 2005
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.13.008032
Subject(s) - optics , ultrashort pulse , optical amplifier , quantum dot , pulse duration , amplifier , pulse (music) , materials science , optoelectronics , physics , bandwidth limited pulse , laser , cmos , detector
Optical and electrical tuning of the propagation time of 170 fs pulses in a quantum dot semiconductor amplifier at room temperature is demonstrated. Both pulse slowdown and advancement is possible and we achieve fractional delays (delay divided with pulse duration) of up to 40%. The results are explained by a simple gain saturation model.