Time-bin entangled photon pair generation from Si micro-ring resonator

Ryota Wakabayashi, Mikio Fujiwara, Ken Ichiro Yoshino, Yoshihiro Nambu, Masahide Sasaki, Takao Aoki

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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.

Original languageEnglish
Pages (from-to)1103-1113
Number of pages11
JournalOptics Express
Issue number2
Publication statusPublished - 2015 Jan 26

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Wakabayashi, R., Fujiwara, M., Yoshino, K. I., Nambu, Y., Sasaki, M., & Aoki, T. (2015). Time-bin entangled photon pair generation from Si micro-ring resonator. Optics Express, 23(2), 1103-1113. https://doi.org/10.1364/OE.23.001103