title: Time-bin entangled photon pair generation from Si micro-ring resonator.
abstract: We demonstrate time-bin entanglement generation in telecom wavelength using a 7 μm radius Si micro-ring resonator pumped by a continuous wave laser. The resonator structure can enhance spontaneous four wave mixing, leading to a photon pair generation rate of about 90-100 Hz with a laser pump power of as low as -3.92 dBm (0.41 mW). We succeed in observing time-bin entanglement with the visibility over 92%. Moreover, wavelength-tunability of the entangled photon pair is demonstrated by changing the operation temperature.
authors.forename: Ryota
authors.initials: R
authors.lastname: Wakabayashi
authors.forename: Mikio
authors.initials: M
authors.lastname: Fujiwara
authors.forename: Ken-Ichiro
authors.initials: K
authors.lastname: Yoshino
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Nambu
authors.forename: Masahide
authors.initials: M
authors.lastname: Sasaki
authors.forename: Takao
authors.initials: T
authors.lastname: Aoki