Quantum dot single-photon emission coupled into single-mode fibers with 3D printed micro-objectives
| dc.contributor.author | Bremer, Lucas | |
| dc.contributor.author | Weber, Ksenia | |
| dc.contributor.author | Fischbach, Sarah | |
| dc.contributor.author | Thiele, Simon | |
| dc.contributor.author | Schmidt, Marco | |
| dc.contributor.author | Kaganskiy, Arsenty | |
| dc.contributor.author | Rodt, Sven | |
| dc.contributor.author | Herkommer, Alois | |
| dc.contributor.author | Sartison, Marc | |
| dc.contributor.author | Portalupi, Simone Luca | |
| dc.contributor.author | Michler, Peter | |
| dc.contributor.author | Giessen, Harald | |
| dc.contributor.author | Reitzenstein, Stephan | |
| dc.date.accessioned | 2020-11-06T09:19:08Z | |
| dc.date.available | 2020-11-06T09:19:08Z | |
| dc.date.issued | 2020-10-01 | |
| dc.description.abstract | User-friendly single-photon sources with high photon-extraction efficiency are crucial building blocks for photonic quantum applications. For many of these applications, such as long-distance quantum key distribution, the use of single-mode optical fibers is mandatory, which leads to stringent requirements regarding the device design and fabrication. We report on the on-chip integration of a quantum dot (QD) microlens with a 3D-printed micro-objective in combination with a single-mode on-chip fiber coupler. The practical quantum device is realized by the deterministic fabrication of the QD-microlens via in situ electron-beam lithography and the 3D two-photon laser writing of the on-chip micro-objective and fiber chuck. A QD with a microlens is an efficient single-photon source, whose emission is collimated by the on-chip micro-objective. A second polymer microlens is located at the end facet of the single-mode fiber and ensures that the collimated light is efficiently coupled into the fiber core. For this purpose, the fiber is placed in an on-chip fiber chuck, which is precisely aligned to the QD-microlens thanks to the sub-micrometer processing accuracy of high-resolution two-photon direct laser writing. The resulting quantum device has a broadband photon extraction efficiency, a single-mode fiber-coupling efficiency of 22%, a measured single-photon flux of 42 kHz (8.9 kHz) under cw (pulsed) optical excitation, which corresponds to 1.5 MHz (0.3 MHz) at the single-mode fiber output, and a multi-photon probability in terms of g(2)(0) = 0.00±0.04/0.00 (0.13 ± 0.05) under cw (pulsed) optical excitation. The stable design of the developed fiber-coupled quantum device makes it highly attractive for integration into user-friendly plug-and-play quantum applications. | en |
| dc.description.sponsorship | BMBF, 16KIS0862, Verbundprojekt: Q.Link.Extension - Q.Link.X -; Teilvorhaben: Komponenten und Aufbau einer Demonstratorstrecke zur speicher-assistierten Quantenschlüsselübertragung | en |
| dc.description.sponsorship | DFG, 255652081, SPP 1839: Tailored Disorder - A science- and engineering-based approach to materials design for advanced photonic applications | en |
| dc.description.sponsorship | DFG, 273920612, SPP 1929: Giant Interactions in Rydberg Systems (GiRyd) | en |
| dc.identifier.eissn | 2378-0967 | |
| dc.identifier.uri | https://depositonce.tu-berlin.de/handle/11303/11848 | |
| dc.identifier.uri | http://dx.doi.org/10.14279/depositonce-10738 | |
| dc.language.iso | en | en |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en |
| dc.subject.ddc | 530 Physik | de |
| dc.subject.other | optical fibers | en |
| dc.subject.other | quantum dots | en |
| dc.subject.other | electron-beam lithography | en |
| dc.subject.other | photoemission | en |
| dc.subject.other | quantum information | en |
| dc.subject.other | 3D printing | en |
| dc.subject.other | microoptics | en |
| dc.subject.other | quasiparticle | en |
| dc.subject.other | multiphoton lithography | en |
| dc.subject.other | optical properties | en |
| dc.title | Quantum dot single-photon emission coupled into single-mode fibers with 3D printed micro-objectives | en |
| dc.type | Article | en |
| dc.type.version | publishedVersion | en |
| dcterms.bibliographicCitation.articlenumber | 106101 | en |
| dcterms.bibliographicCitation.doi | 10.1063/5.0014921 | en |
| dcterms.bibliographicCitation.issue | 10 | en |
| dcterms.bibliographicCitation.journaltitle | APL Photonics | en |
| dcterms.bibliographicCitation.originalpublishername | American Institute of Physics | en |
| dcterms.bibliographicCitation.originalpublisherplace | Melville, NY | en |
| dcterms.bibliographicCitation.volume | 5 | en |
| tub.accessrights.dnb | free | en |
| tub.affiliation | Fak. 2 Mathematik und Naturwissenschaften::Inst. Festkörperphysik::AG Optoelektronik und Quantenbauelemente | de |
| tub.affiliation.faculty | Fak. 2 Mathematik und Naturwissenschaften | de |
| tub.affiliation.group | AG Optoelektronik und Quantenbauelemente | de |
| tub.affiliation.institute | Inst. Festkörperphysik | de |
| tub.publisher.universityorinstitution | Technische Universität Berlin | en |