We report a scheme for reconstructing the complex envelope of an optical signal from two decorrelated measurements of its intensity. The decorrelation is achieved by splitting the received optical signal into two copies, and by dispersing one of the copies prior to photo detection. The reconstructed complex-valued signal is obtained by means of an iterative algorithm that requires only a few tens of iterations. The starting point of the search procedure is produced by Kramers–Kronig (KK) reconstruction. With this procedure, the continuous-wave tone that accompanies the received signal is reduced by 5 dB to 6 dB compared to the requirement of a KK receiver alone.

中文翻译：

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通过基于色散的空间分集增强Kramers-Kronig接收机。

我们报告了一种从强度的两次去相关测量中重建光信号的复杂包络的方案。通过将接收到的光信号分成两个副本，并在进行光检测之前分散其中一个副本，可以实现去相关。通过仅需要几十次迭代的迭代算法即可获得重构的复值信号。搜索过程的起点是通过Kramers–Kronig（KK）重建产生的。通过此过程，与单独的KK接收机相比，伴随接收信号的连续波音调降低了5 dB至6 dB。