# Invitation To Tender Upgrade of SNSPD System

> Tender notice from UK public-sector procurement sources.

## Key facts

- Public buyer: [National Physical Laboratory](/buyers/national-physical-laboratory/contract-awards)
- Published: 15 November 2018
- Planned start: 30 January 2019
- Planned end: 30 January 2019
- Stage: open_tender
- Procurement category: goods
- Notice ID: 77b439c8-5e24-4bc3-b8c5-814b0479aa2d-252601
- OCID: ocds-b5fd17-4ad12d54-151f-4a72-bec2-4f0411fed826

## Description

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\. https://lupc\.bravosolution\.co\.uk/web/login\.shtml

## Related contract awards

- [Strategic Reporting](/contracts/ocds-b5fd17-cba20e46-64e6-4c85-9a06-355e1356c369): National Physical Laboratory
- [Awarded - ITT - IoT 5G devices Base Station Emulator](/contracts/ocds-b5fd17-d7a738be-ed83-4f10-9015-274de9977ad1): National Physical Laboratory
- [RFQ\_128032 - Bibliometric Assessment of the National Physical Laboratory's \(NPL\) Research Output](/contracts/ocds-b5fd17-41dc673a-dc9a-460b-9050-40d4b085cbf7): National Physical Laboratory

## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/77b439c8-5e24-4bc3-b8c5-814b0479aa2d-252601)