|Title||Bounding the outcome of a two-photon interference measurement using weak coherent states.|
|Publication Type||Journal Article|
|Year of Publication||2018|
|Authors||A Aragoneses, NT Islam, M Eggleston, A Lezama, J Kim, and DJ Gauthier|
|Pagination||3806 - 3809|
The interference of two photons at a beam splitter is at the core of many quantum photonic technologies, such as quantum key distribution or linear-optics quantum computing. Observing high-visibility interference is challenging because of the difficulty of realizing indistinguishable single-photon sources. Here, we perform a two-photon interference experiment using phase-randomized weak coherent states with different mean photon numbers. We place a tight upper bound on the expected coincidences for the case when the incident wavepackets contain single photons, allowing us to observe the Hong-Ou-Mandel effect. We find that the interference visibility is at least as large as 0.995-0.013+0.005.
|Short Title||Optics Letters|