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Authors: E. Alkhazraji ; M. Talal Ali Khan and M. Z. M. Khan

Affiliation: King Fahd University of Petroleum and Minerals, Saudi Arabia

Keyword(s): Broadband Lasers, Quantum-Dot Lasers, Quantum-Dash Laser, Spectral Characteristics.

Related Ontology Subjects/Areas/Topics: Lasers ; Photonics, Optics and Laser Technology ; Quantum Electronics and Laser Science

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.

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Paper citation in several formats:
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 - PHOTOPTICS; ISBN 978-989-758-223-3; ISSN 2184-4364, SciTePress, pages 252-255. DOI: 10.5220/0006153502520255

@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 - PHOTOPTICS},
year={2017},
pages={252-255},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006153502520255},
isbn={978-989-758-223-3},
issn={2184-4364},
}

TY - CONF

JO - Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - PHOTOPTICS
TI - Broadband Lasing Characteristics of a Chirped InAs/InP Quantum-Dash Laser
SN - 978-989-758-223-3
IS - 2184-4364
AU - Alkhazraji, E.
AU - Khan, M.
AU - Khan, M.
PY - 2017
SP - 252
EP - 255
DO - 10.5220/0006153502520255
PB - SciTePress

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