Fundamental limits of photonic rf phase-shift amplification by RF interferometry

Moshe Ben Ayun, Seva Rosenberg, Daniel Gotliv, Shmuel Sternklar

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


The fundamental limits posed by classical noise on Photonic RF Phase amplification by RF Interferometry (PARFI) are modeled theoretically and verified experimentally. With 320-MHz modulated light and a phase-shift amplification of 3000, we demonstrate a phase-shift resolution of 1.6 10-4° and 200-nm distance resolution. Based on these results, we postulate that single-nanometer distance resolution can be achieved with PARFI.

Original languageEnglish
Article number7874124
Pages (from-to)1906-1913
Number of pages8
JournalJournal of Lightwave Technology
Issue number10
StatePublished - 15 May 2017


  • Distance measurement
  • phase measurement


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