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On-chip electrically controlled routing of photons from a single quantum dot

Bentham, C.; Itskevich, I. E.; Coles, R. J.; Royall, B.; Clarke, E.; O'Hara, J.; Prtljaga, N.; Fox, A. M.; Skolnick, M. S.; Wilson, L. R.


C. Bentham

I. E. Itskevich

R. J. Coles

B. Royall

E. Clarke

J. O'Hara

N. Prtljaga

A. M. Fox

M. S. Skolnick

L. R. Wilson


Electrical control of on-chip routing of photons emitted by a single InAs/GaAs self-assembled quantum dot (SAQD) is demonstrated in a photonic crystal cavity-waveguide system. The SAQD is located inside an H1 cavity, which is coupled to two photonic crystal waveguides. The SAQD emission wavelength is electrically tunable by the quantum-confined Stark effect. When the SAQD emission is brought into resonance with one of two H1 cavity modes, it is preferentially routed to the waveguide to which that mode is selectively coupled. This proof of concept provides the basis for scalable, low-power, high-speed operation of single-photon routers for use in integrated quantum photonic circuits.


Bentham, C., Itskevich, I. E., Coles, R. J., Royall, B., Clarke, E., O'Hara, J., …Wilson, L. R. (2015). On-chip electrically controlled routing of photons from a single quantum dot. Applied physics letters, 106(22), Article 221101.

Journal Article Type Article
Acceptance Date May 1, 2015
Online Publication Date Jun 1, 2015
Publication Date Jun 1, 2015
Deposit Date Apr 8, 2016
Publicly Available Date Apr 8, 2016
Journal Applied physics letters
Print ISSN 0003-6951
Electronic ISSN 1077-3118
Publisher American Institute of Physics
Peer Reviewed Peer Reviewed
Volume 106
Issue 22
Article Number 221101
Keywords Photons
Public URL
Publisher URL
Additional Information Copy of article first published in: Applied physics letters, 2016, v.106


Article.pdf (1.5 Mb)

Copyright Statement
© 2015 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.

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