In:
Journal of Semiconductors, IOP Publishing, Vol. 42, No. 7 ( 2021-07-01), p. 072901-
Abstract:
In this work, we achieve high count-rate single-photon output in single-mode (SM) optical fiber. Epitaxial and dilute InAs/GaAs quantum dots (QDs) are embedded in a GaAs/AlGaAs distributed Bragg reflector (DBR) with a micro-pillar cavity, so as to improve their light emission extraction in the vertical direction, thereby enhancing the optical SM fiber’s collection capability (numerical aperture: 0.13). By tuning the temperature precisely to make the quantum dot exciton emission resonant to the micro-pillar cavity mode ( Q ~ 1800), we achieve a fiber-output single-photon count rate as high as 4.73 × 10 6 counts per second, with the second-order auto-correlation g 2 (0) remaining at 0.08.
Type of Medium:
Online Resource
ISSN:
1674-4926
,
2058-6140
DOI:
10.1088/1674-4926/42/7/072901
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2021
detail.hit.zdb_id:
2484682-X