We analyze single-photon sources based on minimum-based, maximum-logic output-extended incomplete binary-tree multiplexers assuming different input mean photon numbers in each of the multiplexed units. This approach results in maximal single-photon probabilities higher than those achieved with optimal identical input mean photon numbers. The proposed technique decreases the multiphoton noise of the sources and it is especially advantageous for lower detector efficiencies. We show that assuming different input mean photon numbers in the multiplexed units, single-photon sources based on the analyzed multiplexers outperform those based on asymmetric multiplexers for the major part of the considered parameter range.

中文翻译：

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基于具有优化输入的不完全二叉树多路复用器的单光子源

我们基于基于最小、最大逻辑输出扩展的不完全二叉树多路复用器来分析单光子源，假设每个多路复用单元中的输入平均光子数不同。这种方法产生的最大单光子概率高于通过最佳相同输入平均光子数实现的概率。所提出的技术降低了源的多光子噪声，并且对于降低探测器效率特别有利。我们表明，假设多路复用单元中的输入平均光子数不同，基于所分析的多路复用器的单光子源在所考虑的参数范围的主要部分上优于基于非对称多路复用器的单光子源。