Broadband Lasing Characteristics of a Chirped InAs/InP Quantum-Dash Laser

E. Alkhazraji, M. Talal Ali Khan, M. Z. M. Khan

2017

Abstract

We investigate the temperature dependent spectral characteristics of an InAs multi-stacked quantum-dash-inwell laser. The multi-stack active medium optical transitions are dispersed by varying the thickness of AlGaInAs barrier layers. The analysis is carried out via a Fabry-Perot 700 μm long-cavity laser with a ridge width of 2 μm at different temperatures. A lasing bandwidth of >40 nm is observed at room temperature with total optical power of >150 mW. Moreover, broadening of lasing spectrum is observed with increasing the temperature, due possibly to a thermionic assisted emission and to optical pumping, enabling a full exploitation of the inhomogeneous optical transitions within the active region which indicates an increase in the available states in the active region. Therefore, proper optimization of the multi-stack active medium is required to fully utilize these optical transitions while maintaining high quantum efficiency, and proper bandgap engineering the device structure.

Paper Citation

in Harvard Style

Alkhazraji E., Khan M. and Khan M. (2017). Broadband Lasing Characteristics of a Chirped InAs/InP Quantum-Dash Laser . In Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS, ISBN 978-989-758-223-3, pages 252-255. DOI: 10.5220/0006153502520255

in Bibtex Style

@conference{photoptics17,
author={E. Alkhazraji and M. Talal Ali Khan and M. Z. M. Khan},
title={Broadband Lasing Characteristics of a Chirped InAs/InP Quantum-Dash Laser},
booktitle={Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,},
year={2017},
pages={252-255},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006153502520255},
isbn={978-989-758-223-3},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,
TI - Broadband Lasing Characteristics of a Chirped InAs/InP Quantum-Dash Laser
SN - 978-989-758-223-3
AU - Alkhazraji E.
AU - Khan M.
AU - Khan M.
PY - 2017
SP - 252
EP - 255
DO - 10.5220/0006153502520255