TY - JOUR
AU - Senellart, Pascale
AB - Abstract:Semiconductor quantum dots in microcavities are an excellent platform for the efficient generation of indistinguishable single photons. However, their use in a wide range of quantum technologies requires their controlled fabrication and integration in compact closed-cycle cryocoolers, with a key challenge being the efficient and stable extraction of the single photons into a single-mode fiber. Here we report on a novel method for fiber-pigtailing of deterministically fabricated single-photon sources. Our technique allows for nanometer-scale alignment accuracy between the source and a fiber, alignment that persists all the way from room temperature to 2.4 K. We demonstrate high performance of the device under near-resonant optical excitation with g$^{(2)}$(0) = 1.3 %, a photon indistinguishability of 97.5 % and a fibered brightness of 20.8 %. We show that the indistinguishability and single-photon rate are stable for over ten hours of continuous operation in a single cooldown. We further confirm that the device performance is not degraded by nine successive cooldown-warmup cycles.
TI - Efficient fiber-pigtailed source of indistinguishable single photons
JO - Quantum Physics
DO - 10.48550/arxiv.2410.07760
DA - 2024-10-10
UR - https://www.deepdyve.com/lp/arxiv-cornell-university/efficient-fiber-pigtailed-source-of-indistinguishable-single-photons-wZX95eKaPL
VL - 2024
IS - 2410
DP - DeepDyve
ER -