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Threshold current of 670-nm AlGaInP strained quantum well lasers

Smowton, Peter Michael ORCID:, Summers, Huw David, Rees, Paul and Blood, Peter 1994. Threshold current of 670-nm AlGaInP strained quantum well lasers. IEEE Photonics Technology Letters 6 (8) , pp. 910-912. 10.1109/68.313049

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By means of gain-current calculations we have examined the factors which determine the threshold current of compressively strained Ga/sub x/In/sub 1-x/P/AlGaInP quantum well lasers for the various well width/composition (x) combinations which give a transition wavelength of 670 nm. In addition to valence band modifications we find that the increasing depth and decreasing width of the well are important in decreasing the current as the strain increases. We reveal the important role of well width fluctuations in devices with high compressive strain.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: Institute of Electrical and Electronics Engineers
ISSN: 1041-1135
Last Modified: 20 Oct 2022 09:10

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