Monolithic Integration of a Quantum Emitter with a Compact On-chip Beam-splitter

N. Prtljaga; R. J. Coles; J. OHara; B. Royall; E. Clarke; A. M. Fox; M. S. Skolnick

doi:10.1063/1.4883374

Monolithic Integration of a Quantum Emitter with a Compact On-chip Beam-splitter

Quantum Physics 2014-06-16 v2 Optics

Authors: N. Prtljaga , R. J. Coles , J. OHara , B. Royall , E. Clarke , A. M. Fox , M. S. Skolnick

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Abstract

A fundamental component of an integrated quantum optical circuit is an on-chip beam-splitter operating at the single-photon level. Here we demonstrate the monolithic integration of an on-demand quantum emitter in the form of a single self-assembled InGaAs quantum dot (QD) with a compact (>10 um), air clad, free standing directional coupler acting as a beam-splitter for anti-bunched light. The device was tested by using single photons emitted by a QD embedded in one of the input arms of the device. We verified the single-photon nature of the QD signal by performing Hanbury Brown- Twiss (HBT) measurements and demonstrated single-photon beam splitting by cross-correlating the signal from the separate output ports of the directional coupler.

Keywords

quantum emitter monolithic integration on-chip beam-splitter quantum dot directional coupler single-photon Hanbury Brown-Twiss

Cite

@article{arxiv.1404.0518,
  title  = {Monolithic Integration of a Quantum Emitter with a Compact On-chip Beam-splitter},
  author = {N. Prtljaga and R. J. Coles and J. OHara and B. Royall and E. Clarke and A. M. Fox and M. S. Skolnick},
  journal= {arXiv preprint arXiv:1404.0518},
  year   = {2014}
}

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5 pages, 3 figures

Monolithic Integration of a Quantum Emitter with a Compact On-chip Beam-splitter

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