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- Title
On-chip single photon filtering and multiplexing in hybrid quantum photonic circuits.
- Authors
Elshaari, Ali W.; Zadeh, Iman Esmaeil; Fognini, Andreas; Reimer, Michael E.; Dalacu, Dan; Poole, Philip J.; Zwiller, Val; Jöns, Klaus D.
- Abstract
Quantum light plays a pivotal role in modern science and future photonic applications. Since the advent of integrated quantum nanophotonics different material platforms based on III-V nanostructures-, colour centers-, and nonlinear waveguides as on-chip light sources have been investigated. Each platform has unique advantages and limitations; however, all implementations face major challenges with filtering of individual quantum states, scalable integration, deterministic multiplexing of selected quantum emitters, and on-chip excitation suppression. Here we overcome all of these challenges with a hybrid and scalable approach, where single III-V quantum emitters are positioned and deterministically integrated in a complementary metal-oxide-semiconductor-compatible photonic circuit. We demonstrate reconfigurable on-chip single-photon filtering and wavelength division multiplexing with a foot print one million times smaller than similar table-top approaches, while offering excitation suppression of more than 95 dB and efficient routing of single photons over a bandwidth of 40 nm. Our work marks an important step to harvest quantum optical technologies' full potential.
- Subjects
WAVELENGTH division multiplexing; PHOTONS; LIGHT sources; QUANTUM states; FOOTPRINTS; WAVEGUIDES
- Publication
Nature Communications, 2017, Vol 8, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-017-00486-8