Enhancing the Kramers–Kronig receiver via dispersion-based spatial diversity

Lior Blech, Cristian Antonelli, Antonio Mecozzi, Yonina C. Eldar, Mark Shtaif*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


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.

Original languageEnglish
Pages (from-to)3495-3497
Number of pages3
JournalOptics Letters
Issue number13
StatePublished - 1 Jul 2020


FundersFunder number
Ministero dell’Istruzione, dell’Università e della Ricerca
Israel Science Foundation1401/16
Ministry of Economy


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