A Purcell-enhanced quantum dot single-photon source based on a hybrid circular Bragg grating (hCBG) microcavity was permanently attached to a single-mode fiber. The optical performance of the fiber-coupled hCBG cavity geometry was analyzed using JCMsuite. Finite Element Method (FEM) simulations with the software were essential to understand and predict the Purcell factor and single-photon fiber-coupling efficiency as functions of the fiber-to-cavity distance and lateral alignment.
L. Rickert, et al. A fiber-pigtailed quantum dot device generating indistinguishable photons at GHz clock-rates. Nanophotonics 14, 1795 (2025).