title: Spectrally resolved Hong-Ou-Mandel interference between independent photon sources.
abstract: Hong-Ou-Mandel (HOM) interference between independent photon sources (HOMI-IPS) is the fundamental block for quantum information processing. All the previous HOMI-IPS experiments were carried out in time-domain, however, the spectral information during the interference was omitted. Here, we investigate the HOMI-IPS in spectral domain using the recently developed fast fiber spectrometer, and demonstrate the spectral distribution during the HOM interference between two heralded single-photon sources, and two thermal sources. This experiment not only can deepen our understanding of HOMI-IPS from the viewpoint of spectral domain, but also presents a tool to test the theoretical predictions of HOMI-IPS using spectrally engineered sources.
authors.forename: Rui-Bo
authors.initials: RB
authors.lastname: Jin
authors.forename: Thomas
authors.initials: T
authors.lastname: Gerrits
authors.forename: Mikio
authors.initials: M
authors.lastname: Fujiwara
authors.forename: Ryota
authors.initials: R
authors.lastname: Wakabayashi
authors.forename: Taro
authors.initials: T
authors.lastname: Yamashita
authors.forename: Shigehito
authors.initials: S
authors.lastname: Miki
authors.forename: Hirotaka
authors.initials: H
authors.lastname: Terai
authors.forename: Ryosuke
authors.initials: R
authors.lastname: Shimizu
authors.forename: Masahiro
authors.initials: M
authors.lastname: Takeoka
authors.forename: Masahide
authors.initials: M
authors.lastname: Sasaki