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A fiber-integrated nanobeam single photon source emitting at telecom wavelengths

Authors :
Aziz Karasahin
Shahriar Aghaeimeibodi
Christopher J. K. Richardson
Chang-Min Lee
Edo Waks
Mustafa Atabey Buyukkaya
Source :
Applied Physics Letters. 114:171101
Publication Year :
2019
Publisher :
AIP Publishing, 2019.

Abstract

Fiber-coupled single photon sources are considered important components of photonics-based quantum information processors. Most fiber-coupled single photon sources require careful alignment between fibers and quantum emitters. In this work, we present an alignment-free fiber-integrated single photon source based on an InAs/InP quantum dot emitting at telecom wavelengths. We designed a nanobeam containing the quantum dots attached to a fiber taper. The adiabatic tapered coupler of the nanobeam enables efficient light coupling to the fiber taper. Using a tungsten probe in a focused ion beam system, we transferred the nanobeam to the fiber taper. The observed fiber-coupled single photon emission occurs with a brightness of 1.4% and a purity of 83%. This device provides a building block for fiber-optic quantum circuits that have various applications, such as quantum communication and distributed quantum computing.

Details

ISSN :
10773118 and 00036951
Volume :
114
Database :
OpenAIRE
Journal :
Applied Physics Letters
Accession number :
edsair.doi...........93c994c342c48598b3f2a58cf78f1c5a
Full Text :
https://doi.org/10.1063/1.5089907