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Temperature Dependent Performances of Superconducting Nanowire Single-Photon Detectors in an Ultralow-Temperature Region
Taro Yamashita, Shigehito Miki, Wei Qiu +3
We present the performances of a superconducting nanowire single-photon detector (SNSPD) in an ultralow-temperature region from 16 mK to 4 K. The system detection efficiency of the…
Photon level crosstalk between parallel fibers installed in urban area
Mikio Fujiwara, Shigehito Miki, Taro Yamashita +2
We estimate the channel characteristics of field-installed dark fibers at single photon levels for quantum key distribution (QKD). Measured fibers are telecom single-mode dark fibe…
Multi-channel SNSPD system with high detection efficiency at telecommunication wavelength
Shigehito Miki, Taro Yamashita, Mikio Fujiwara +2
We developed a four-channel superconducting nanowire single-photon detector system based on a Gifford-McMahon cryocooler. All channels showed a system detection efficiency (at a 10…
Operating quantum waveguide circuits with superconducting single-photon detectors
C. M. Natarajan, A. Peruzzo, S. Miki +6
Advanced quantum information science and technology (QIST) applications place exacting de- mands on optical components. Quantum waveguide circuits offer a route to scalable QIST on…
Superconducting nanowire single photon detectors for quantum information and communications
Zhen Wang, Shigehito Miki, Mikio Fujiwara
Superconducting nanowire single photon detectors (SNSPD or SSPD) are highly promising devices in the growing field of quantum information and communications technology. We have dev…
Compactly packaged superconducting nanowire single-photon detector with an optical cavity for multichannel system
Shigehito Miki, Masanori Takeda, Mikio Fujiwara +2
We developed superconducting nanowire single-photon detectors with an optical cavity (OC-SNSPDs) for multichannel systems. For efficient coupling, the devices were installed in com…