2024/11/25 by Paweł Mrowiński, Mikulicz, Marek G., Mrowiński, Paweł +8 · 1 citation
Biochemistry, Genetics and Molecular Biology · Engineering · #Advanced Fluorescence Microscopy Techniques #FOS: Physical sciences #Optics (physics.optics) #Photonic and Optical Devices #Quantum Physics (quant-ph) #Semiconductor Lasers and Optical Devices
paper · pdf · doi:10.48550/arxiv.2411.16490
openalex publication_date 2024/11/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Fiber-based long-haul quantum communication would greatly benefit from a robust and deterministically integrated source of quantum state. Here, we report the design, fabrication, and optical characterization of InAs/InP quantum dots in the InP H1 point defect 2D photonic crystal cavity, integrated with the standard single-mode fiber using a micro-transfer printing technique. The device was placed in a compact cryocooler maintaining a cryogenic temperature of 15 K with single-photon emission characterized by g(2)(0)=0.14(14) and reliable and stable emission (intensity fluctuations given by a standard deviation σ= 0.13), so that an all-fiber based connection between two laboratory nodes through an open area was established and utilized for testing the quantum channel. In this way, we demonstrate a plug-and-play all-fiber single-photon source operating in the third telecom window, where standard telecommunication fiber networks can be used as a low-loss medium.