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Optimisation of high power AlGaInP laser diodes for optical storage applications

Elliott, Stella, Berry, G. and Smowton, Peter Michael ORCID: 2006. Optimisation of high power AlGaInP laser diodes for optical storage applications. IEE Proceedings Optoelectronics 153 (6) , pp. 321-325. 10.1049/ip-opt:20060050

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The use of expanded mode layers in lasers designed for DVD read/write applications is investigated and their performance is compared with that of a more conventional structure. The expanded mode design achieves a higher confinement factor and hence much lower threshold currents than the conventional structure, for the same measured vertical farfield divergence of 18deg. T0 is increased from 51 to 65 K (20-70degC) for the expanded mode structure for 320-mum long devices with uncoated facets. It is also found that zinc or magnesium can be used interchangeably for the p-dopant in a given structure without any impact on device performance.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: Institution of Engineering and Technology
ISSN: 1350-2433
Last Modified: 25 Oct 2022 09:39

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