Two-photon interference with continuous-wave multi-mode coherent light

Opt Express. 2014 Feb 10;22(3):3611-20. doi: 10.1364/OE.22.003611.

Abstract

We report two-photon interference with continuous-wave multi-mode coherent light. We show that the two-photon interference, in terms of the detection time difference, reveals two-photon beating fringes with the visibility V = 0.5. While scanning the optical delay of the interferometer, Hong-Ou-Mandel dips or peaks are measured depending on the chosen detection time difference. The HOM dips/peaks are repeated when the optical delay and the first-order coherence revival period of the multi-mode coherent light are the same. These results help to understand the nature of two-photon interference and also can be useful for quantum information science.

Publication types

  • Research Support, Non-U.S. Gov't