Source: https://tendernation.io/opportunities/01a14093-ec48-73e7-81bb-5283de5c5ed8/denmark-astronomical-and-optical-instruments-laser-frequency-comb-for-2es closed DK open procedure Suitable for SMEs # Astronomical and optical instruments – Laser Frequency Comb for 2ES [Danmarks Tekniske Universitet - DTU](https://tendernation.io/buyers/danmarks-tekniske-universitet-dtu) Estimated value €1,300,000 Published 26 Feb 2026 Deadline Closed 31 Mar 2026 ## 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 DTU will like to buy a Laser Frequency Comb for 2ES (The Second Earth Spectrograph). The Second Earth Spectrograph (2ES) is a next-generation extreme-precision radial velocity spectro-graph that will be installed at the MPG/ESO 2.2m Telescope on La Silla, Chile (Southern Hemisphere). 2ES will be dedicated to a > 5-year observing program with access to the majority (2/3) of the tele-scope time with the goal of discovering temperate terrestrial Earth-mass planets in the habitable zone around the brightest solar-type stars in the sky. In order to achieve the extreme precision needed for 2ES to complete its science objectives, a Laser Frequency Comb (LFC) calibration source is crucial in order to be able to calibrate the spectrograph to achieve the extreme precision of 10 cm/s over many years of operation. The LFC must cover the entire wavelength range of 2ES (370 nm to 870 nm) and have comb lines at appropriate spacing (see requirements) and have extreme stability (see requirements). The LFC must be able to function in a as-tronomical observing environment, be remotely operatable and be also to sustain a significant uptime at the astronomical telescope. ## CPV classification Astronomical and optical instruments Laboratory, optical and precision equipments (excl. glasses) Optical instruments Specialist optical instruments Lasers Source Tenders Electronic Daily (EU) · Notice 137665-2026 [View official notice](https://ted.europa.eu/en/notice/137665-2026) 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. [Track tenders free](https://tendernation.io/register) [Buyer profile Danmarks Tekniske Universitet - DTU: past awards and live tenders](https://tendernation.io/buyers/danmarks-tekniske-universitet-dtu) [Sector More Laboratory & precision equipment tenders](https://tendernation.io/sectors/laboratory-precision-equipment) ## More tenders like this [Laboratory, optical and precision equipments (excl. glasses) – Vodíkový polygon CEETe H2 / CEETe H2 Hydrogen Polygon · Vysoká škola báňská - Technická univerzita Ostrava · 18 days left · 6 Nov 2026](https://tendernation.io/opportunities/01a15183-14ee-7238-941c-57e426068058/czechia-laboratory-optical-and-precision-equipments-excl-glasses-vodikov) [Laboratory, optical and precision equipments (excl. glasses) – Supply, Delivery, Installation, Testing, Commissioning and Training for 3 Automatic Asphalt Extraction Devices, including all necessary accessories required for complete and fully operational systems · Public Works Department · 29 days left · 17 Nov 2026](https://tendernation.io/opportunities/01a15183-1c2c-7367-bb86-fdb6f5219ed7/cyprus-laboratory-optical-and-precision-equipments-excl-glasses-supply) [Parking meters – Parkautomaten · Landeshauptstadt Stuttgart, Haupt- und Personalamt, Abt. Allgemeiner Service, Zentraler Einkauf · 32 days left · 20 Nov 2026](https://tendernation.io/opportunities/01a15183-1396-70d0-82b5-dd09b1916cf7/germany-parking-meters-parkautomaten) [Laboratory, optical and precision equipments (excl. glasses) – Dostawa systemu obrazowania fluorescencyjnego na rzecz Instytutu Agrofizyki im. Bohdana Dobrzańskiego PAN w Lublinie · Instytut Agrofizyki IM.BOHDANA Dobrzańskiego Polskiej Akademii Nauk · 32 days left · 20 Nov 2026](https://tendernation.io/opportunities/01a15183-ceff-70be-b876-1f526e8d1cf5/poland-laboratory-optical-and-precision-equipments-excl-glasses-dostawa) [Laboratory, optical and precision equipments (excl. glasses) – Sprzedaż wraz z dostarczeniem sondy wieloparametrowej z elektrodami oraz pompy próżniowej · Uniwersytet Rzeszowski · 30 days left · 18 Nov 2026](https://tendernation.io/opportunities/01a15183-1441-70f4-a723-f4e57a503570/poland-laboratory-optical-and-precision-equipments-excl-glasses-sprzedaz) [Laboratory, optical and precision equipments (excl. glasses) – X-ray CT system for the analysis of rock and soil samples · ETH Zürich - Abt. Procurement & Export Services · 37 days left · 25 Nov 2026](https://tendernation.io/opportunities/01a15183-1c5a-739b-bb20-024917276057/switzerland-laboratory-optical-and-precision-equipments-excl-glasses-x-r)