Time-domain Hong–Ou–Mandel interference of quasi-thermal fields and its application in linear optical circuit characterization

Authors
Anna Romanova, Konstantin Katamadze, Grant Avosopiants, Leon Biguaa, Nikolay Skryabin, Alexander Kalinkin, Ivan Dyakonov, Yurii Bogdanov, and Sergei Kulik

Optics Letters, 47, 18, 4708-4711 (2022)

Abstract
We study temporal correlations of interfering quasi-thermal fields, obtained by scattering laser radiation on a rotating ground glass disk. We show that the Doppler effect causes oscillations in the temporal cross correlation function. Furthermore, we propose how to use Hong–Ou–Mandel interference of quasi-thermal fields in the time domain to characterize linear optical circuits.