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Correlated photon pair source based on GaInP/AlGaInP material system

A technology of photon pairs and systems, applied in the field of integrated quantum optics

Inactive Publication Date: 2018-03-16
TIANJIN UNIV
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Problems solved by technology

However, there is no such integrated optoelectronic device for generating correlated photon pairs at wavelengths around 1.3 μm.

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  • Correlated photon pair source based on GaInP/AlGaInP material system
  • Correlated photon pair source based on GaInP/AlGaInP material system
  • Correlated photon pair source based on GaInP/AlGaInP material system

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Embodiment Construction

[0047] In order to fill the gap in the integrated optoelectronic device for generating correlated photon pairs with a wavelength around 1.3 μm, the present invention uses the GaInP / AlGaInP material system to propose an electrically pumped Bragg reflective waveguide integrated correlated photon pair source. The device can generate a pump laser with a wavelength around 0.65 μm, and realize phase-matched spontaneous parametric down conversion inside the device to generate correlated photon pairs with a wavelength around 1.3 μm, which is an integrated correlated photon pair source with a wavelength around 1.3 μm Provide an effective technical path.

[0048] The overall technical solution of the present invention is: rationally design the material composition and thickness of the quantum well and the Bragg reflection waveguide, realize that under the excitation of electric injection, the quantum well radiates a pump laser with a center wavelength near 0.65 μm, and utilizes the inter...

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Abstract

The invention belongs to the field of integration quantum optics, and provides an electric pumping Bragg reflection waveguide integration correlated photon pair source. The correlated photon pair source can generate pumping laser with the wavelength being about 0.65 micrometer, spontaneous parametric down-conversion achieving phase matching is achieved inside the device, correlated photon pairs with the wavelength being about 1.3 micrometers are generated, and an effective technical path is provided for the integration correlated photon pair source with the wavelength being about 1.3 micrometers. Accordingly, due to the adopted technical scheme, the correlated photon pair source based on a GaInP / AlGaInP material system is composed of a quantum well and a Bragg reflection waveguide, electric injection excitation is applied to the quantum well, the quantum well radiates pumping laser, the pumping laser excites the Bragg reflection waveguide, by means of the material nonlinear characteristic of the Bragg reflection waveguide, spontaneous parametric down-conversion is achieved, and the correlated photon pairs are generated. The invention mainly relates to designing and manufacturing ofthe correlated photon pair source.

Description

technical field [0001] The invention belongs to the field of integrated quantum optics. Background technique [0002] Correlated photon pairs are important resources for quantum optical information processing, so correlated photon pair sources are core devices in the field of quantum optical information. The existing solid-state correlated photon pair sources can be divided into two categories: optically pumped and electrically pumped. The sources of optical pumping are mainly divided into: the correlated photon pair source based on the second-order optical nonlinear effect and the correlated photon pair source based on the third-order optical nonlinear effect. Correlated photon pair sources for electrically pumped spectra include: quantum dot biexciton radiation diodes and Bragg reflection waveguide correlated photon pair sources. Among them, the correlated photon pair source of the electrically pumped Bragg reflection waveguide essentially integrates the quantum well and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/355G02F1/39
CPCG02F1/3556G02F1/395
Inventor 胡小龙迟晓铭解肖亚
Owner TIANJIN UNIV
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