期刊
OPTICS EXPRESS
卷 20, 期 5, 页码 5508-5517出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.20.005508
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资金
- Japan Society for the Promotion of Science [17GS1204]
- Grants-in-Aid for Scientific Research [22244035, 23760048] Funding Source: KAKEN
We proposed and demonstrated a simple but deterministic scheme for generating polarization-entangled photon pairs at telecommunication wavelengths with type-II quasi-phase-matched spontaneous parametric down-conversion (QPM-SPDC) having two poling periods. We fabricated a LiNbO3 crystal having two poling periods so as to generate entangled photons at two wavelengths, i.e., 1506 nm and 1594 nm. We characterized the two-photon polarization state with state tomography and confirmed that the state was highly entangled. (C) 2012 Optical Society of America
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