Patent · US Active

Single photon detector device

US11585693B2 · kind B2 · utility

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1References

12Claims

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Assignee

WESTFÄLISCHE WILHELMS-UNIVERSITÄT MÜNSTER · DE

Inventors

Nicolai Walter · Münster, DE
Wolfram Pernice · Münster, DE
Simone Ferrari · Roma, IT

Key dates

Filing date	Dec 5, 2019
Grant date	Feb 21, 2023
Priority date	—
Expiry date	Dec 5, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/30
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a single photon detector device for detecting an optical signal comprising an optical fiber and at least one nanowire, wherein the optical fiber comprises a core area and a cladding area and is designed to conduct the optical signal along an optical axis, wherein, with respect to the optical axis, a first area of the optical fiber is an entrance area for the optical signal and a second area of the optical fiber is a detector area, and wherein the nanowire becomes superconducting at a predetermined temperature and is designed in the superconducting state to generate an output signal as a function of the optical signal. It is provided that in the detector area of the optical fiber the nanowire extends essentially along the optical axis of the optical fiber. A single photon detector device is thus provided which has a simple structure, a high efficiency, a high detection rate and a high spectral bandwidth.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.