Observation of two-photon coalescence in weak coherent wave packets

Marcelo F.Z. Arruda, Moslem Mahdavifar, Thomas Krop, Paulo H. Souto Ribeiro, Seyed Mohammad Hashemi Rafsanjani

Research output: Contribution to journalArticlepeer-review


We present an experimental investigation of two-photon interference using a continuous-wave laser. Using a Mach–Zehnder interferometer, we observe two-photon coalescence and its complementary effect, Hong–Ou–Mandel interference. We also demonstrate two-photon coalescence using a Michelson interferometer. Our work paves the way for the realization of multi-photon interference in high photon loss scenarios using continuous-wave lasers.

Original languageEnglish (US)
Pages (from-to)2901-2905
Number of pages5
JournalJournal of the Optical Society of America B: Optical Physics
Issue number10
StatePublished - Sep 2020

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics


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