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Mid-infrared InAsSbP/InAsSb quantum well laser diodes - art. no. 673808

Yin, Min and Krier, Anthony (2007) Mid-infrared InAsSbP/InAsSb quantum well laser diodes - art. no. 673808. In: TECHNOLOGIES FOR OPTICAL COUNTERMEASURES IV. SPIE-INT SOC OPTICAL ENGINEERING, BELLINGHAM, p. 73808. ISBN 978-0-8194-6896-3

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Abstract

This paper describes the characteristics of a separate confinement heterostructure laser design based on type-I InAsSbP/InAsSb multiple quantum wells (MQW). An 8x8 band k.p method was used to calculate the band structure. The optical gain of the active region containing InAsSb QW was calculated using a free carrier gain model. Other properties such as behavior of the fundamental optical TE mode and refractive index profile were also determined. These were used for simulation of the resulting device properties and to estimate the threshold modal gain and threshold current density for the InAsSb MQW laser. Suitable InAsSbP cladding layer and waveguide/barrier materials have been determined. The strain, critical thickness, band offset, optical gain, Auger coefficient and threshold current density have been calculated at various Sb contents (x). The lowest current density is found for the composition range between 0.12<x<0.16, where the estimated laser threshold current density is 1.85-1.86 kA cm(-2).

Item Type: Contribution in Book/Report/Proceedings
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 56516
Deposited By: ep_importer_pure
Deposited On: 07 Aug 2012 10:55
Refereed?: No
Published?: Published
Last Modified: 10 Apr 2014 01:18
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/56516

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