发明名称 |
Bandwidth provisioning for an entangled photon system |
摘要 |
A quantum key distribution system is deployed in an optical fiber network transporting classical data traffic. A source of entangled photon pairs is used to generate quantum keys. Classical data traffic is typically transported over channels in the C-band. If a pair of channels for transport of quantum data is available within the C-band, then the source of entangled photon pairs is tuned to emit in a pair of channels in the C-band. If a pair of channels for transport of quantum data is not available within the C-band, then the source of entangled photon pairs is tuned to emit in a pair of channels in a combined S-band and L-band. When a periodically-poled lithium niobate waveguide pumped with a laser is used for the source of entangled photon pairs, the output spectral properties are tuned by varying the temperature of the waveguide. |
申请公布号 |
US8280250(B2) |
申请公布日期 |
2012.10.02 |
申请号 |
US20100882752 |
申请日期 |
2010.09.15 |
申请人 |
BRODSKY MICHAEL;ANTONELLI CRISTIAN;OH JUNGMI;AT&T INTELLECTUAL PROPERTY I, L.P. |
发明人 |
BRODSKY MICHAEL;ANTONELLI CRISTIAN;OH JUNGMI |
分类号 |
H04B10/12;H04J14/02 |
主分类号 |
H04B10/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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