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2. 发明授权

US09465274B1 High-yield entangled single photon source 有权
标题翻译：高产纠缠单光子源
公开(公告)号：US09465274B1
公开(公告)日：2016-10-11
申请号：US14255003
申请日：2014-04-17
申请人： Sandia Corporation
发明人： Daniel B. S. Soh , Scott E. Bisson
IPC分类号： G02F1/35 , G02F1/365 , G02F1/377
CPC分类号： G02F1/365 , G02F1/3536 , G02F1/377 , G02F1/39 , G02F2203/26
摘要： The various technologies presented herein relate to utilizing photons at respective idler and signal frequencies to facilitate generation of photons at a pump frequency. A strong pump field can be applied at the ωi and the ωs frequencies, with the generated idler and signal pulses being utilized to generate a photon pair at the ωp frequency. Further, the idler pump power can be increased relative to the signal pump power such that the pump power Pi>pump power Ps. Such reversed operation (e.g., ωi+ωs→ωp1+ωp2) can minimize and/or negate Raman scattering effects. By complying with an energy conservation requirement, the ωi and ωs photons interacting with the material through the four-wave mixing process facilitates the entanglement of the ωp1 and ωp2 photons. The ωi and ωs photons can be respectively formed in different length waveguides with a delay utilized to facilitate common timing between the ωi and ωs photons.
摘要翻译：本文提出的各种技术涉及利用各自惰轮和信号频率处的光子来促进以泵频率产生光子。可以在ωi和ωs频率处施加强泵浦场，其中产生的惰轮和信号脉冲用于以ωp频率产生光子对。此外，空转泵功率可以相对于信号泵功率增加，使得泵功率Pi>泵浦功率Ps。这种反向操作（例如，ωi+ωs→ωp1+ωp2）可以最小化和/或否定拉曼散射效应。通过符合节能要求，通过四波混合过程与材料相互作用的ωi和ωs光子有助于ωp1和ωp2光子的缠结。 ωi和ωs光子可以分别形成在具有延迟的不同长度的波导中，以便于ωi和ωs光子之间的公共定时。

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