Work

Efficient quantum dot single photon extraction into an optical fiber using a nanophotonic directional coupler

Year: 2011

Type: article

Abstract: We demonstrate a spectrally broadband and efficient technique for collecting emission from a single InAs quantum dot directly into a standard single mode optical fiber. In this approach, an optical fiber taper waveguide is placed in contact with a suspended GaAs nanophotonic waveguide with embedded quantum dots, forming a broadband directional coupler with standard optical fiber input and output. Efficient photoluminescence collection over a wavelength range of tens of nanometers is demonstrated, and a maximum collection efficiency of 6% (corresponding single photon rate of 3.0 MHz) into a single mode optical fiber is estimated for a single quantum dot exciton.

Source: Applied Physics Letters

DOI: 10.1063/1.3617472

Authors: M. Davanço, M. T. Rakher, W. Wegscheider, D. Schuh, A. Badolato, K. Srinivasan

Institutions: National Institute of Standards and Technology, Center for Nanoscale Science and Technology, University of Maryland, College Park, University of Regensburg, University of Rochester

Language: English

Topic: Semiconductor Quantum Structures and Devices

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W1985437657

FWCI: 2.944

Cites: 15

Cited by: 52

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