Source: https://tendernation.io/opportunities/01a13c22-1fb4-70a1-bb7a-41ea1ccb0160/invitation-to-tender-upgrade-of-snspd-system closed GB open procedure Suitable for SMEs # Invitation To Tender Upgrade of SNSPD System [National Physical Laboratory](https://tendernation.io/buyers/national-physical-laboratory) Estimated value Not stated Published 15 Nov 2018 Deadline Closed 17 Dec 2018 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender The National Physical Laboratory \[NPL\] requirement is to upgrade its existing SNSPD system which is used for quantum photonics metrology. The upgrade will make use of NPL's existing cryostat, and provide 4 detectors to cover the spectral range from 600 nm to 950 nm (the spectral region where single-photon emission from NV- centres, 2D materials and quantum dots occur), plus 4 detectors to cover the 1310 nm - 1550 nm telecom bands (important for quantum communications and single-photon emission). NPL wishes be able to add up to 8 detectors at a later date; the upgrade shall provide the electrical feedthroughs required for these detectors, and not preclude (e.g. by limiting space) the addition of these detectors. Testing of high-speed QKD systems requires detectors with low jitter, as well as low after-pulsing and dark-count rates and high detection efficiency. Low jitter and high detection efficiency is also essential to characterise prospective single- and entangled-photon sources. 4 channels are required for 4-fold coincidence measurements to determine photon-number statistics. Additional information: Please ensure that you register on Bravo Solutions (link below) to obtain the documents and submit your interest / intention to bid. [lupc.bravosolution.co.uk/web/login.shtml](https://lupc.bravosolution.co.uk/web/login.shtml) ## CPV classification Laboratory, optical and precision equipments (excl. glasses) Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/4ad12d54-151f-4a72-bec2-4f0411fed826) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. 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