Die u:cris Detailansicht:
Phase-stable source of polarization-entangled photons in a linear double-pass configuration
- Autor(en)
- Fabian Steinlechner, Sven Ramelow, Marc Jofre, Marta Gilaberte, Thomas Jennewein, Juan. P. Torres, Morgan W. Mitchell, Valerio Pruneri
- Abstrakt
We demonstrate a compact, robust, and highly efficient source of
polarization-entangled photons, based on linear bi-directional
down-conversion in a novel ‘folded sandwich’ configuration.
Bi-directionally pumping a single periodically poled KTiOPO4
(ppKTP) crystal with a 405-nm laser diode, we generate entangled photon
pairs at the non-degenerate wavelengths 784 nm (signal) and 839 nm
(idler), and achieve an unprecedented detection rate of 11.8 kcps for
10.4 μW of pump power (1.1 million pairs / mW), in a 2.9-nm
bandwidth, while maintaining a very high two-photon entanglement
quality, with a Bell-state fidelity of 99.3 ± 0.3%.
- Organisation(en)
- Quantenoptik, Quantennanophysik und Quanteninformation
- Externe Organisation(en)
- The Institute of Photonic Sciences, Universitat Politècnica de Catalunya, Institució Catalana de Recerca i Estudis Avançats (ICREA), University of Waterloo (UW)
- Journal
- Optics Express
- Band
- 21
- Seiten
- 11943-11951
- Anzahl der Seiten
- 9
- ISSN
- 1094-4087
- DOI
- https://doi.org/10.1364/OE.21.011943
- Publikationsdatum
- 05-2013
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103026 Quantenoptik
- Schlagwörter
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/b666ae43-b1dc-4d7f-a06c-8ba60992dc28