Hong-Ou-Mandel interference with a diode-pumped 1-GHz Ti:sapphire laser

Imogen Morland, Hanna Ostapenko, Feng Zhu, Derryck T. Reid, Jonathan Leach*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Correlated photon pairs generated through spontaneous parametric down-conversion (SPDC) are a key resource in quantum optics. In many quantum optics applications, such as satellite quantum key distribution (QKD), a compact, high repetition rate pump laser is required. Here we demonstrate the use of a compact, GHz-rate diode-pumped three-element Kerr-lens-modelocked Ti:sapphire laser for the generation of correlated photon pairs at 790 nm. We verify the presence of indistinguishable photons produced via SPDC using Hong-Ou-Mandel (HOM) interferometry and observe a dip in coincidence counts with a visibility of 81.8%.

Original languageEnglish
Pages (from-to)1922-1928
Number of pages7
JournalOSA Continuum
Issue number9
Early online date23 Aug 2023
Publication statusPublished - 15 Sept 2023

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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