Continuous-wave quasi-phase-matched waveguide correlated photon pair source on a III–V chip

Sarrafi, P., Zhu, E.Y., Dolgaleva, K., Holmes, B.M., Hutchings, D. , Aitchison, J.S. and Qian, L. (2013) Continuous-wave quasi-phase-matched waveguide correlated photon pair source on a III–V chip. Applied Physics Letters, 103(25), p. 251115. (doi:10.1063/1.4851095)

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Abstract

We report on the demonstration of correlated photon pair generation in a quasi-phase-matched superlattice GaAs/AlGaAs waveguide using a continuous-wave pump. Our photon pair source has a low noise level and achieves a high coincidence-to-accidental ratio greater than 100, which is the highest value reported in III–V chips so far. This correlated photon pair source has the potential to be monolithically integrated with on-chip pump laser sources fabricated on the same superlattice wafer structure, enabling direct correlated/entangled photon pair production from a compact electrically powered chip.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Hutchings, Professor David and Holmes, Dr Barry
Authors: Sarrafi, P., Zhu, E.Y., Dolgaleva, K., Holmes, B.M., Hutchings, D., Aitchison, J.S., and Qian, L.
Subjects:Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Applied Physics Letters
ISSN:0003-6951
ISSN (Online):1077-3118

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
427901Integrated self-pumped optical frequency conversion and generation in semiconductor waveguidesDavid HutchingsEngineering & Physical Sciences Research Council (EPSRC)EP/E009972/1ENG - ENGINEERING ELECTRONICS & NANO ENG