A single-crystal source of path/polarization entanglement at non-degenerate wavelengths
2010 (English)In: Optics and Spectroscopy, ISSN 0030-400X, E-ISSN 1562-6911, Vol. 108, no 2, 165-169 p.Article in journal (Refereed) Published
We demonstrate a bright, narrowband, compact, quasi-phase-matched single-crystal source generating path-polarization-entangled photon pairs at 810 nm and 1550 nm at a maximum rate of 3 x 10(6) s(-1) THz(-1) mW(-1) after coupling to single-mode fiber, and with two-photon interference visibility above 90%. While the source can already be used to implement quantum communication protocols such as quantum key distribution, this work is also instrumental for narrowband applications such as entanglement transfer from photonic to atomic qubits, or entanglement of photons from independent sources.
Place, publisher, year, edition, pages
2010. Vol. 108, no 2, 165-169 p.
PHOTON PAIRS, EXPERIMENTAL REALIZATION, QUANTUM COMMUNICATION, BELL INEQUALITIES, GENERATION, BAND, VIOLATION
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-29931DOI: 10.1134/S0030400X10020037ISI: 000275755100003ScopusID: 2-s2.0-77951061058OAI: oai:DiVA.org:kth-29931DiVA: diva2:398379
QC 20110217 12th International Conference on Quantum Optics and Quantum Information, Vilnius, LITHUANIA, SEP 20-23, 20082011-02-172011-02-172011-02-17Bibliographically approved