Two-Photon Interference of Photon Pairs Created in Photonic Crystal Fibers
Toshihiro Nakanishi, Kazuo Sakemi, H. Kobayashi, Sugiyama, Kazuhiko, Masao Kitano · Institutional Repositories DataBase (IRDB) · 2009
We investigate a method to produce photon pairs by four-wave mixing in photonic crystal fibers (PCFs). By controlling the wavelength of the pump light, which determines the phase matching condition for four-wave mixing, we can obtain a broader spectrum of photon pairs than undesired Raman-scattered photons. We observe two-photon interference of photon pairs from a PCF with the help of an unbalanced Mach-Zehnder interferometer. Two-photon interference fringes with 83% visibility, which exceeds the classical limit of 50%, are obtained.