# Laser Frequency Comb for 2ES

- **Source:** TED · `137665-2026`
- **Buyer:** Danmarks Tekniske Universitet - DTU
- **Published:** 2026-02-26
- **Deadline:** 2026-03-31
- **Estimated value:** 1,300,000 EUR
- **CPV codes:** 38630000, 38000000, 38600000, 38636000, 38636100
- **Place-of-performance NUTS:** DK012, DNK
- **Buyer-address NUTS:** —
- **Notice type:** cn-standard / 16

## Procedure details

Source lists may span several lots; list positions do not establish relationships.

### Procedure Types

- open

### Award Criterion Names

- Price

### Award Criterion Descriptions

- The price to be assessed is the Total Agreement Value and the Total Price for Options, specified in Section 2.1 and 2.2 in Appendix 2 – Prices. The tender with the lowest total price will be awarded the contract.

### Selection Criterion Descriptions

- As a minimum the Tenderer must provide 1 reference for comparable agreements. A comparable agreement means an agreement regarding delivery of an Optical Frequency Comb-based Calibration System with a total spectral coverage from 510-870 nm or a comparable instrument. The agreement, to which the reference refers, must not be more than 3 years old from the tender deadline. The date is calculated from the last signature on the agreement referred to.

### Options

- Installation, test and training in Chile Warranty - Extention (2th year) Hotline-service Maintenance visit in Chile

### Documents Urls

- https://eu.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=449624&TID=200410651&B=

### Submission Urls

- https://eu.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=449624&TID=200410651&B=

## Description

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.

## Original notice

https://ted.europa.eu/da/notice/-/detail/137665-2026