With its high performance Superconducting Nanowire Single-Photon Detectors (SNSPD), SIMIT has successfully stepped into the international market, in cooperation with ID Quantique in Switzerland (webpage of the product: http://www.idquantique.com/instrumentation/product/id280-snspd-single-photon-detector.html). To our knowledge, this is the first time high performance superconducting detectors will be exported overseas.
SIMIT started R&D of SNSPD since 2007, with the support of several national projects like Strategic Priority Research Program (B) of CAS etc. With its state-of-the-art Superconducting ELectronic Facilities (SELF), and advanced fabrication technologies, SIMIT has successfully developed SNSPDs with detection efficiency as high as 80% at the wavelength of 1550 nm, which is one of the best records in the world. By suppressing the blackbody irradiation in fiber with on-chip band-pass thin film filter, SIMIT features another world-record on ultralow dark count rate SNSPDs (< 1Hz) [Opt. Express 22, 16267-16272 (2014)]. High performance systems developed by SIMIT have been applied to several frontier research and applications in China like quantum communication, quantum light source characterization, laser ranging and imaging etc.
Optical image of packaged SNSPD made by SIMIT (copied from the website of ID Quantique )