Second-Order Temporal Interference with Thermal Light: Interference Beyond the Coherence Time

  title={Second-Order Temporal Interference with Thermal Light: Interference Beyond the Coherence Time},
  author={Yong Sup Ihn and Yosep Kim and Vincenzo Tamma and Yoon-ho Kim},
  journal={2018 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)},
  • Y. Ihn, Yosep Kim, +1 author Yoon-ho Kim
  • Published 1 June 2017
  • Physics, Medicine
  • 2018 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)
We report an experimental demonstration for a counter-intuitive phenomenon in multi-path interferometer with thermal light. The intensity correlation between the outputs of two unbalanced Mach-Zehnder interferometers (UMZIs) with two correlated beams of thermal light at the input exhibits genuine second-order interference with the visibility of 1/3. Here, the second-order interference does not degrade at all no matter how much the path length difference in each UMZI is increased beyond the… Expand
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