Quasi-Phase-Matched Waveguide Devices for Generation of Postselection-Free Polarization-Entangled Twin Photons

Quasi-Phase-Matched Waveguide Devices for Generation of Postselection-Free Polarization-Entangled Twin Photons

Quasi-phase-matched (QPM) Ti : LiNbO 3 waveguide devices for generation of postselection-free polarization-entangled twin photons are proposed. The devices consist of cascaded two sections of slightly different QPM parameters. Generation of the entangled photons in the telecommunication band in a fa...

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Veröffentlicht in:IEEE photonics technology letters 2009-08, Vol.21 (15), p.1096-1098
Hauptverfasser: Suhara, T., Nakaya, G., Kawashima, J., Fujimura, M.
Format: Artikel
Sprache:eng
Schlagworte:
Counting
Devices
Frequency
Gratings
Integrated optics
Interference
Nonlinear optical devices
Nonlinear optics
Optical polarization
Optical waveguides
Photonic crystals
Photonics
Photons
Quantum entanglement
quasi-phase-matching
Telecommunications
Tellurium
Titanium
twin photon
Waveguides
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Beschreibung
Zusammenfassung:Quasi-phase-matched (QPM) Ti : LiNbO 3 waveguide devices for generation of postselection-free polarization-entangled twin photons are proposed. The devices consist of cascaded two sections of slightly different QPM parameters. Generation of the entangled photons in the telecommunication band in a fabricated device of 2 times 15 mm interaction length is demonstrated through photon coincidence counting and quantum interference experiments.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2009.2023799