2021/06/04 by Heonoh Kim, Osung Kwon, Han Seb Moon · 4 citations
Computer Science · Engineering · Physics and Astronomy · #Coherence (philosophical gambling strategy) #Coherence length #Coherence theory #Coherence time #Coincidence #Interference (communication) #Nonlinear Optical Materials Studies #Photonics #Pulse (music) #Quantum Information and Cryptography #Quantum optics and atomic interactions #Visibility #physics.optics #quant-ph
paper · pdf · doi:10.1063/5.0049746
published in Applied Physics Letters 118(24) (American Institute of Physics) · 6 pages, 4 figures, Accepted for publication in Appl. Phys. Lett
arxiv created 2021/06/04 · openalex publication_date 2021/06/14 · arxiv updated 2021/06/16 · openalex created_date 2021/06/22 · openalex updated_date 2026/08/05
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.