Atmospheric turbulence and orbital angular momentum of single photons for optical communication
Atmospheric turbulence and orbital angular momentum of single photons for optical communication
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DOI：
10.1103/physrevlett.94.153901
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发表时间：
2005-04-22
影响因子：
8.6
通讯作者：
Paterson, C
中科院分区：
文献类型：
--
作者：
Paterson, C
研究了基于轨道角动量态的单光子通信系统中随机像差对相干性的影响。导出了转动相干函数，导出了不同轨道角动量态的方位模散射方程。利用信道容量对单光子通信系统的影响进行了量化。研究表明，大气湍流的退相干效应对这类系统的影响是重要的，即使在弱湍流的情况下也是如此。
The effects of propagation through random aberrations on coherence for single-photon communication systems based on orbital angular momentum states are quantified. A rotational coherence function is derived which leads to scattering equations for azimuthal modes of different orbital angular momentum states. The effect on a single-photon communication system is quantified using the channel capacity. The work shows that the decoherence effect of atmospheric turbulence on such systems is important even for weak turbulence.