[16p-A405-1~15] 3.9 Optical quantum physics and technologies (formerly 3.10)

[16p-A405-4] Polarization-entangled photon pairs distribution using cavity enhanced SPDC compatible with DWDM technology

〇Toshiki Kobayashi^1,2, Rintaro Fujimoto², Tomohiro Yamazaki^1,2, Shigehito Miki^3,4, Fumihiro China³, Hirotaka Terai³, Rikizo Ikuta^1,2, Takashi Yamamoto^1,2 (1.Osaka Univ. QIQB, 2.Osaka Univ. GSES, 3.NICT, 4.Kobe Univ.)

Keywords:Entanglement, Quantum communication, PPLN

Wavelength-division multiplexing for photonic entanglement distribution is a promising method for increasing capacity in quantum communication. In this work, we use polarization entangled photon pairs produced as a biphoton frequency comb by SPDC inside a cavity with FSR of 12.5 GHz. We distribute the photon pairs into 16 ch by DWDM compatible filters with 25 GHz spacing.