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Gain saturation in InP/GaInP quantum-dot lasers

Lutti, Julie, Smowton, Peter Michael ORCID:, Lewis, Gareth Michael, Blood, Peter, Krysa, A. B., Lin, J. C., Houston, P. A., Ramsay, A. J. and Mowbray, D. J. 2005. Gain saturation in InP/GaInP quantum-dot lasers. Applied Physics Letters 86 (1) , 011111. 10.1063/1.1844600

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We have measured the gain-current and gain-quasi–Fermi level separation characteristics for InP/ GaInP quantum-dot-laser structures. Saturation of the gain-current characteristics is apparent even though photoluminescence excitation spectroscopy measurements indicate that the 2D states are energetically distant from the dot states. The gain is reduced from the maximum value by the distribution of carriers in the excited dot states, the states in smaller dots and the 2D states.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Additional Information: Pdf uploaded in accordance with publisher's policy at (accessed 21/02/2014).
Publisher: American Institute of Physics
ISSN: 0003-6951
Date of First Compliant Deposit: 30 March 2016
Last Modified: 05 May 2023 07:50

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