Single-Photons in the Telecom bands will be a strict requirement when quantum communication applications in fiber networks are being targeted in the future. Here, it is of importance to efficiently couple the photons into a fiber without introducing severe losses. In this work, we directly couple single-photons in the telecom C-band emitted from semiconductor quantum dots embedded in optical resonators into optical fibers. The spatial sensitivity of the coupling efficiency and performance over a standard optical setup are investigated. These results will play a key role in the future development of fiber-coupled sources of quantum light.
Publication:Collecting Telecom Photons From Circular Bragg Gratings Using Optical Fibers and 3D Printed Micro-Lenses
Nam Tran, Pavel Ruchka, Sara Jakovljevic, Benjamin Breiholz, Peter Gierß, Ponraj Vijayan, Carlos Eduardo Jimenez, Alois Herkommer, Michael Jetter, Simone Luca Portalupi, Harald Giessen, Peter Michler 
Advanced Quantum Technologies
Contact person: N.Tran
