公开(公告)号：US20210381884A1

公开(公告)日：2021-12-09

申请号：US17299993

申请日：2019-12-05

申请人： WESTFÄLISCHE WILHELMS-UNIVERSITÄT MÜNSTER

发明人： Nicolai WALTER ,  Wolfram PERNICE ,  Simone FERRARI

IPC分类号： G01J1/04 ,  G02B6/02

摘要： 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.