Bidirectional photon extraction from an epitaxially grown semiconductor quantum dot sandwiched by single mode optical fibers

Abstract

Fiber-based bidirectional photon extraction from nanoscale emitters and photon antibunching behavior between two outputs of two single mode optical fibers are experimentally demonstrated. Flakes of the epitaxial layer containing the InAs quantum dots (QDs) are fixed mechanically by both side with the edge faces of the single-mode-fiber (SMF) patch cables. The emitting photons from the single quantum dot are directly taken out of both side through the SMFs. Single-photon emission between two SMF outputs is confirmed by detecting non-classical antibunching in second-order photon correlation measurements with two superconducting single-photon detectors (SSPDs) and a time-amplitude converter (TAC). This simple opto-mechanical alignment-free single-photon emitter has advantage of robust stability more than 10 days and low-cost fabrication.

3 pages, 2 figures

References in corpus (5)

• Photonic quantum technologies
• Bright single-photon sources in bottom-up tailored nanowires
• Subnanosecond spectral diffusion measurement using photon correlation
• Highly efficient coupling of photons from nanoemitters into single-mode optical fibers
• Efficient quantum dot single photon extraction into an optical fiber using a nanophotonic directional coupler

Cited by in corpus (2)

• Fiber-coupled pillar array as a highly pure and stable single-photon source
• Semiconductor Nanopillar as a Single-Photon Emitter and its Optimal Design