Research Papers

Ultrafast superconducting single-photon detector with a reduced active area coupled to a tapered lensed single-mode fiber

[+] Author Affiliations
Maria V. Sidorova

Moscow State Pedagogical University, 1 Malaya Pirogovskaya Street, Moscow 119992, Russia

Alexander V. Divochiy

Closed Joint Stock Company “Superconducting Nanotechnology” (Scontel), 5/22 Rossolimo Street, Moscow 119021, Russia

Yury B. Vakhtomin

Moscow State Pedagogical University, 1 Malaya Pirogovskaya Street, Moscow 119992, Russia

Closed Joint Stock Company “Superconducting Nanotechnology” (Scontel), 5/22 Rossolimo Street, Moscow 119021, Russia

Konstantin V. Smirnov

Moscow State Pedagogical University, 1 Malaya Pirogovskaya Street, Moscow 119992, Russia

Closed Joint Stock Company “Superconducting Nanotechnology” (Scontel), 5/22 Rossolimo Street, Moscow 119021, Russia

National Research University Higher School of Economics, 20 Myasnitskaya Street, Moscow 101000, Russia

J. Nanophoton. 9(1), 093051 (Sep 16, 2015). doi:10.1117/1.JNP.9.093051
History: Received April 24, 2015; Accepted August 10, 2015
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Abstract.  This paper presents an ultrafast niobium nitride (NbN) superconducting single-photon detector (SSPD) with an active area of 3×3μm2 that offers better timing performance metrics than the previous SSPD with an active area of 7×7μm2. The improved SSPD demonstrates a record timing jitter (<25ps), an ultrashort recovery time (<2ns), an extremely low dark count rate, and a high detection efficiency in a wide spectral range from visible part to near infrared. The record parameters were obtained due to the development of a new technique providing effective optical coupling between a detector with a reduced active area and a standard single-mode telecommunication fiber. The advantages of the new approach are experimentally confirmed by taking electro-optical measurements.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Maria V. Sidorova ; Alexander V. Divochiy ; Yury B. Vakhtomin and Konstantin V. Smirnov
"Ultrafast superconducting single-photon detector with a reduced active area coupled to a tapered lensed single-mode fiber", J. Nanophoton. 9(1), 093051 (Sep 16, 2015). ; http://dx.doi.org/10.1117/1.JNP.9.093051


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