Wavelength controlled InAs/InP quantum dots for telecom laser applications

S. Anantathanasarn, R. Nötzel, P.J. Veldhoven, van, F.W.M. Otten, van, Y. Barbarin, G. Servanton, T. Vries, de, E. Smalbrugge, E.J. Geluk, T.J. Eijkemans, E.A.J.M. Bente, Y.S. Oei, M.K. Smit, J.H. Wolter

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

6 Citations (Scopus)


This article reviews the recent progress in the growth and device applications of InAs/InP quantum dots (QDs) for telecom applications. Wavelength tuning of the metalorganic vapor-phase epitaxy grown single layer and stacked InAs QDs embedded in InGaAsP/InP (1 0 0) over the 1.55-µm region at room temperature (RT) is achieved using ultra-thin GaAs interlayers underneath the QDs. The GaAs interlayers, together with reduced growth temperature and V/III ratio, and extended growth interruption suppress As/P exchange to reduce the QD height in a controlled way. Device quality of the QDs is demonstrated by temperature-dependent photoluminescence (PL) measurements, revealing zero-dimensional carrier confinement and defect-free InAs QDs, and is highlighted by continuous-wave ground-state lasing at RT of narrow ridge-waveguide QD lasers, exhibiting a broad gain spectrum. Unpolarized PL from the cleaved side, important for realization of polarization insensitive semiconductor optical amplifiers, is obtained from closely stacked QDs due to vertical electronic coupling.
Original languageEnglish
Title of host publication6th Int. Workshop on Epitaxial Semiconductors on Patterned Substrates and Novel Index Surfaces, April 3-5, 2006
Publication statusPublished - 2006

Publication series

NameMicroelectronics Journal
ISSN (Print)0026-2692


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