发明名称 |
Multi-channel transmission of quantum information |
摘要 |
A communication system adapted to use wavelength (frequency) division multiplexing for quantum-key distribution (QKD). In one embodiment, a communication system of the invention has a transmitter coupled to a receiver via a transmission link. The transmitter has (i) a first optical-frequency comb source (OFCS) adapted to generate a first plurality of uniformly spaced frequency components and (ii) a first multi-channel optical modulator adapted to independently modulate each component of the first plurality to produce a quantum-information (QI) signal applied to the transmission link. The receiver has (i) a second OFCS adapted to generate a second plurality of uniformly spaced frequency components and (ii) a second multi-channel optical modulator adapted to independently modulate each component of the second plurality to produce a local-oscillator (LO) signal. Each of the first and second optical-frequency comb sources is referenced to a frequency standard such that the frequency components generated by these comb sources have substantially the same frequencies. The receiver employs a multi-channel homodyne detector adapted to process interference signals produced by combining the LO signal with the QI signal to ascertain quantum information carried by the QI signal.
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申请公布号 |
US2006263096(A1) |
申请公布日期 |
2006.11.23 |
申请号 |
US20050210973 |
申请日期 |
2005.08.24 |
申请人 |
DINU MIHAELA;DORRER CHRISTOPHE J;GILES CLINTON R;KANG INUK;MAROM DAN M |
发明人 |
DINU MIHAELA;DORRER CHRISTOPHE J.;GILES CLINTON R.;KANG INUK;MAROM DAN M. |
分类号 |
H04B10/04 |
主分类号 |
H04B10/04 |
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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