Ultrafast Measuement of Femtosecond Time-bin Qubits Using Optimized Up-conversion Single Photon Detector

Yuta Kochi

Presentation information

Oral Session

CLEO-PR2022 » Quantum Frequency Conversion

[CFA7I] Quantum Frequency Conversion

Fri. Aug 5, 2022 11:00 AM - 12:00 PM Mid-sized Hall A (1F)

Session Chair: Hiroki Takesue (NTT Corp.)

11:15 AM - 11:30 AM

[CFA7I-02] Ultrafast Measuement of Femtosecond Time-bin Qubits Using Optimized Up-conversion Single Photon Detector

*Yuta Kochi¹, Sunao Kurimura², Junko Ishi-Hayase¹ (1. Keio Univ. (Japan), 2. NIMS (Japan))

[Presentation Style] Online

We developed and optimized the up-conversion single photon detector with the temporal resolution of 415 fs. Consequently, we successfully evaluated single-photon level pseudo time-bin qubits with their pulse interval of only 800 fs.