Electrically driven telecommunication wavelength single-photon source

Ward, M. B., Farrow, T., See, P., Yuan, Z. L., Karimov, O. Z., Bennett, Anthony ORCID: https://orcid.org/0000-0002-5386-3710, Shields, A. J., Atkinson, P., Cooper, K. and Ritchie, D. A. 2007. Electrically driven telecommunication wavelength single-photon source. Applied Physics Letters 90 (6) , 063512. 10.1063/1.2472172

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Abstract

An electrically driven ∼1.3μm single-photon source is demonstrated. The source contains InAs quantum dots within a planar cavity light-emitting diode. Electroluminescence (EL) spectra show clear emission lines and from time resolved EL we estimate a primary decay time of ∼1ns. Time-varying Stark shifts are studied and proposed for truncating the emission in jitter-sensitive applications (optimization for 2 ns detector gate width demonstrated) and for relaxing excitation pulse-length requirements. A correlation measurement demonstrates suppression of multiphoton emission to below 28% of the Poissonian level before correction for detector dark counts, suggesting g(2)(0)∼0.19 for the source itself.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Engineering
Publisher:	American Institute of Physics
ISSN:	0003-6951
Date of Acceptance:	9 January 2007
Last Modified:	03 Nov 2022 10:04
URI:	https://orca.cardiff.ac.uk/id/eprint/106828

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