The observation of the Hong-Ou-Mandel (HOM)-type two-photon interference (TPI) has played an important role in the development of photonic quantum technologies. The time-resolved coincidence-detection technique has been effectively used to identify and characterize the TPI phenomena of long-coherence optical fields. Here, we report on the experimental demonstration of the TPI of two phase-randomized weak coherent pulses with time-resolved coincidence detection. The mutual coherence time between the two weak coherent lights is determined by applying a frequency noise to one of the two interfering lights. We analyze the HOM-type TPI-fringe visibility according to the ratio of the coherence time to the pulse duration.
@article{arxiv.2106.02434,
title = {Time-resolved two-photon interference of weak coherent pulses},
author = {Heonoh Kim and Osung Kwon and Han Seb Moon},
journal= {arXiv preprint arXiv:2106.02434},
year = {2021}
}
Comments
6 pages, 4 figures, Accepted for publication in Appl. Phys. Lett