Laser Frequency Comb for the NIRPS Spectrograph
The detection of exoplanets by measurement of periodic Doppler shifts in the stellar spectrum [1] marked a significant breakthrough in our understanding of star system compositions. After the success of radial velocity measurements in the visible spectral range with spectrographs such as HARPS [1] and ESPRESSO [2], observations expand to the near-infrared region. The Near-Infrared Planet Searcher (NIRPS) consortium [3], developed a spectrograph operating at the La Silla Observatory in Chile, aiming to achieve radial velocity precision better than 1 m/s [4]. Among various critical factors, accurate and stable calibration of the spectrograph is essential to mitigate system drifts. Common calibration sources include atomic lamps, Fabry-Perot etalons, and laser frequency combs [5]–[7].
Authors
- Lionel Bischof
- F. Bouchy (ORCID: https://orcid.org/0000-0002-7613-393X)
- Francesco Vincenzo Pepe (ORCID: https://orcid.org/0000-0002-7407-063X)
- Lina Beltrán
- Séverine Denis (ORCID: https://orcid.org/0000-0003-3139-0147)
- Ewelina Obrzud (ORCID: https://orcid.org/0000-0001-9856-0484)
- Tobias M. Schmidt (ORCID: https://orcid.org/0000-0002-4833-7273)
- Christopher Bonzon (ORCID: https://orcid.org/0000-0002-5759-2364)
- Steve Lecomte (ORCID: https://orcid.org/0000-0002-8126-9444)
- Nicolas Torcheboeuf (ORCID: https://orcid.org/0000-0003-2711-7690)
- J. Berney (ORCID: https://orcid.org/0009-0002-7736-3638)
- G. Lo Curto (ORCID: https://orcid.org/0000-0002-1158-9354)
- Christoph K. Hofer (ORCID: https://orcid.org/0000-0002-0844-8366)
Institutions
- European Southern Observatory (DE)
- Swiss Center for Electronics and Microtechnology (Switzerland) (CH)
- Global Social Observatory (CH)
Publication Details
- Published
- 2025-06-23
- DOI
- https://doi.org/10.1109/cleo/europe-eqec65582.2025.11109906
- Primary Topic
- Advanced Fiber Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00