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Effect of active medium inhomogeneity on lasing characteristics of InAs/InP quantum-dash lasers

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4 Author(s)
Khan, Zahed M. ; Div. of Phys. Sci. & Eng., King Abdullah Univ. of Sci. & Technol. (KAUST), Thuwal, Saudi Arabia ; Ng, T.K. ; Schwingenschlogl, Udo ; Ooi, B.S.

The authors report on the effect of quantum-dash (Qdash) inhomogeneity on the characteristics of InAs/InP Qdash laser utilizing a single state rate equation model. The inhomogeneity is assumed to follow the Gaussian approximation. From our observation, an increased in Qdash inhomogeneity results in increasing of threshold current density and redshifting of the peak lasing wavelength. The lasing linewidth of the Qdash lasers has also found to increase under large injection current, attaining a full width at half maximum (FWHM) of ~ 17 nm.

Published in:

Photonics Global Conference (PGC), 2010

Date of Conference:

14-16 Dec. 2010