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Proceedings Paper

Effect of modulation p-doping on the differential carrier lifetime of quantum dot lasers
Author(s): Kejia Zhou; Siming Chen; David T. D. Childs; Richard A. Hogg
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Paper Abstract

We report on spectrally resolved differential carrier lifetime measurements of un-doped and modulation p-doped 1300nm quantum dot laser. We find that the differential carrier lifetime is significantly reduced for p-doped samples compared to essentially identical un-doped samples in line with enhanced Auger recombination. With increasing temperature the results from the un-doped sample are unchanged, whilst an increase in differential carrier lifetime is observed for the pdoped sample. This is in agreement with the Auger rate reducing with increasing temperature. The effect of modulation p-doping on inter-level scattering times and the recombination rate of the excited state are discussed.

Paper Details

Date Published: 8 February 2012
PDF: 8 pages
Proc. SPIE 8277, Novel In-Plane Semiconductor Lasers XI, 827720 (8 February 2012); doi: 10.1117/12.908544
Show Author Affiliations
Kejia Zhou, The Univ. of Sheffield (United Kingdom)
Siming Chen, The Univ. of Sheffield (United Kingdom)
David T. D. Childs, The Univ. of Sheffield (United Kingdom)
Richard A. Hogg, The Univ. of Sheffield (United Kingdom)

Published in SPIE Proceedings Vol. 8277:
Novel In-Plane Semiconductor Lasers XI
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

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