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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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Electrically injected photon-pair source at room temperature.

Fabien Boitier1, Adeline Orieux1, Claire Autebert1

  • 1Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Diderot, Sorbonne Paris Cité, CNRS-UMR 7162, Case courrier 7021, 75205 Paris Cedex 13, France.

Physical Review Letters
|May 27, 2014
PubMed
Summary
This summary is machine-generated.

Researchers developed the first electrically driven semiconductor source of photon pairs at room temperature. This breakthrough advances miniaturized quantum information technologies by enabling on-chip generation of nonclassical light states.

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Area of Science:

  • Quantum Information Science
  • Semiconductor Physics
  • Optoelectronics

Background:

  • Miniaturization and integration of quantum information technology components are critical challenges.
  • Electrically driven light sources offer advantages over optically driven ones for on-chip integration.

Purpose of the Study:

  • To demonstrate the first electrically driven semiconductor source of photon pairs operating at room temperature and telecom wavelengths.
  • To advance the development of integrated quantum information processing systems.

Main Methods:

  • Utilized type-II intracavity spontaneous parametric down-conversion (SPDC) in an Aluminum Gallium Arsenide (AlGaAs) laser diode.
  • Generated photon pairs at telecom wavelengths (1.57 μm).
  • Performed time-correlation measurements to quantify generation efficiency.

Main Results:

  • Achieved the first room-temperature, electrically driven semiconductor source of photon pairs.
  • Generated photon pairs at 1.57 μm, suitable for telecom applications.
  • Measured an internal generation efficiency of 7×10⁻¹¹ pairs/injected electron.

Conclusions:

  • This electrically driven source is a significant step towards miniaturized quantum information technologies.
  • The platform's capability for photon generation, manipulation, and detection paves the way for complex quantum operations.
  • Enables the development of massively parallel quantum systems on a single chip.