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A fiber-integrated nanobeam single photon source emitting at telecom wavelengths
- 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.
- Subjects :
- 010302 applied physics
Photon
Materials science
Physics and Astronomy (miscellaneous)
business.industry
Nanophotonics
Physics::Optics
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Quantum dot
Single-photon source
0103 physical sciences
Physics::Accelerator Physics
Quantum information
Photonics
0210 nano-technology
Telecommunications
business
Quantum information science
Quantum computer
Subjects
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