@inproceedings{7aa561db14ad41538dd3a47ed619aecc,
title = "Influence of the cavity design on the differential gain and linewidth enhancement factor of a QD comb laser",
abstract = "This work investigates the effects of the confinement factor on the linewidth enhancement factor in hybrid silicon quantum dot comb lasers, which is a key parameter involved in frequency comb generation. Experiments are performed on two laser devices sharing the same gain material with slightly different cavity designs resulting in different confinement factors. The results highlight that a lower confinement factor leads to a smaller carrier-induced refractive index variation and a larger differential gain, together resulting in a smaller linewidth enhancement factor, which in turn translates into different sets of performance regarding the feedback applications. This paper brings novel insights on the fundamental aspects of quantum dot comb lasers and provides new guidelines of future on-chip light sources for integrated wavelength-division multiplexing applications.",
keywords = "Quantum dots, frequency combs, laser dynamics, linewidth enhancement factor, silicon photonics",
author = "Thibaut Renaud and Heming Huang and Geza Kurczveil and Di Liang and Beausoleil, \{Raymond G.\} and Fr{\'e}d{\'e}ric Grillot",
note = "Publisher Copyright: {\textcopyright} 2022 SPIE.; Semiconductor Lasers and Laser Dynamics X 2022 ; Conference date: 09-05-2022 Through 20-05-2022",
year = "2022",
month = jan,
day = "1",
doi = "10.1117/12.2624500",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Marc Sciamanna and Krassimir Panajotov and Sven Hofling",
booktitle = "Semiconductor Lasers and Laser Dynamics X",
}