期刊
PHYSICAL REVIEW LETTERS
卷 113, 期 10, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.113.103601
关键词
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资金
- State Key Program for Basic Research in China [2012CB921802, 2011CBA00205]
- National Natural Science Foundation of China [91321312, 91121001, 11321063, 11422438]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
A consequent tendency toward high-performance quantum information processing is to develop the fully integrated photonic chip. Here, we report the on-chip generation and manipulation of entangled photons based on reconfigurable lithium-niobate waveguide circuits. By introducing a periodically poled structure into the waveguide circuits, two individual photon-pair sources with a controllable electro-optic phase shift are produced within a Hong-Ou-Mandel interferometer, resulting in a deterministically separated identical photon pair. The state is characterized by 92.9 +/- 0.9% visibility Hong-Ou-Mandel interference. The photon flux reaches similar to 1.4 x 10(7) pairs nm(-1) mW(-1). The whole chip is designed to contain nine similar units to produce identical photon pairs spanning the telecom C and L band by the flexible engineering of nonlinearity. Our work presents a scenario for on-chip engineering of different photon sources and paves the way to fully integrated quantum technologies.
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