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Physical properties and optimization of GaBiAs/(Al)GaAs based near-infrared laser diodes grown by MOVPE with up to 4.4% Bi

Marko, IP, Bushell, ZL, Jin, SR, Hild, K, Batool, Z, Sweeney, SJ, Ludewig, P, Reinhard, S, Nattermann, L, Stolz, W and Volz, K (2014) Physical properties and optimization of GaBiAs/(Al)GaAs based near-infrared laser diodes grown by MOVPE with up to 4.4% Bi Journal of Physics D: Applied Physics, 47 (34).

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Abstract

This paper reports on progress in the development of GaAsBi/(Al)GaAs based lasers grown using metal-organic vapour phase epitaxy and focuses on the underlying processes governing their efficiency and temperature dependence. Room temperature lasing has been achieved in devices with 2.2% Bi and lasing in devices with 4.4% Bi was observed up to 180 K. We show that the device performance can be improved by optimizing both electrical and optical confinement in the laser structures. Analysis of the temperature dependence of the threshold current together with pure spontaneous emission and high hydrostatic pressure measurements indicate that device performance is currently dominated by non-radiative recombination through defects (>80% of the threshold current at room temperature in 2.2% Bi samples) and that to further improve the device performance and move towards longer wavelengths for optical telecommunications (1.3-1.5 μ m) further effort is required to improve and optimize material quality. © 2014 IOP Publishing Ltd.

Item Type: Article
Authors :
AuthorsEmailORCID
Marko, IPUNSPECIFIEDUNSPECIFIED
Bushell, ZLUNSPECIFIEDUNSPECIFIED
Jin, SRUNSPECIFIEDUNSPECIFIED
Hild, KUNSPECIFIEDUNSPECIFIED
Batool, ZUNSPECIFIEDUNSPECIFIED
Sweeney, SJUNSPECIFIEDUNSPECIFIED
Ludewig, PUNSPECIFIEDUNSPECIFIED
Reinhard, SUNSPECIFIEDUNSPECIFIED
Nattermann, LUNSPECIFIEDUNSPECIFIED
Stolz, WUNSPECIFIEDUNSPECIFIED
Volz, KUNSPECIFIEDUNSPECIFIED
Date : 30 August 2014
Identification Number : https://doi.org/10.1088/0022-3727/47/34/345103
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 13:11
Last Modified : 28 Mar 2017 13:11
URI: http://epubs.surrey.ac.uk/id/eprint/805970

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