Preprint

PUBDB-2023-03939

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Ultraviolet astronomical spectrograph calibration with laser frequency combs from nanophotonic waveguides

Ludwig, M.CFEL*DESY* ; Ayhan, F. ; Schmidt, T. M. ; Wildi, T.CFEL*DESY* ; Voumard, T.CFEL*DESY* ; Blum, R. ; Ye, Z. ; Lei, F. ; Wildi, F. ; Pepe, F. ; Gaafar, M. A.CFEL*DESY* ; Obrzud, E. ; Grassani, D. ; Moreau, F. ; Chazelas, B. ; Sottile, R. ; Torres-Company, V. ; Brasch, V. ; Villanueva, L. G. ; Bouchy, F. ; Herr, T. (Corresponding author)CFEL*DESY*

2023

This record in other databases:

Report No.: arXiv:2306.13609

Abstract: Astronomical precision spectroscopy underpins searches for life beyond Earth, direct observation of the expanding Universe and constraining the potential variability of physical constants across cosmological scales. Laser frequency combs can provide the critically required accurate and precise calibration to the astronomical spectrographs. For cosmological studies, extending the calibration with such astrocombs to the ultraviolet spectral range is highly desirable, however, strong material dispersion and large spectral separation from the established infrared laser oscillators have made this exceedingly challenging. Here, we demonstrate for the first time astronomical spectrograph calibrations with an astrocomb in the ultraviolet spectral range below 400 nm. This is accomplished via chip-integrated highly nonlinear photonics in periodically-poled, nano-fabricated lithium niobate waveguides in conjunction with a robust infrared electro-optic comb generator, as well as a chip-integrated microresonator comb. These results demonstrate a viable route towards astronomical precision spectroscopy in the ultraviolet and may contribute to unlocking the full potential of next generation ground- and future space-based astronomical instruments.

Keyword(s): Optics (physics.optics) ; Instrumentation and Methods for Astrophysics (astro-ph.IM) ; FOS: Physical sciences

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Contributing Institute(s):

1. FS-CFEL-2-UMP (FS-CFEL-2-UMP)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
2. STARCHIP - Microphotonics-based frequency combs for habitable exoplanet detection (853564) (853564)
3. VH-NG-1404 - Ultra-fast nonlinear microphotonics (G:(DE-HGF)2019_VH-NG-1404) (G:(DE-HGF)2019_VH-NG-1404)

Experiment(s):

1. Experiments at CFEL

Appears in the scientific report 2023

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Database coverage:
Published

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article Ludwig, M.CFEL*DESY* ; Ayhan, F. ; Schmidt, T. M. ; Wildi, T.CFEL*DESY* ; Voumard, T.CFEL*Extern* ; Blum, R. ; Ye, Z. ; Lei, F. ; Wildi, F. ; Pepe, F. ; Gaafar, M. A.Extern* ; Obrzud, E. ; Grassani, D. ; Moreau, F. ; Chazelas, B. ; Sottile, R. ; Torres-Company, V. ; Brasch, V. ; Villanueva, L. G. ; Bouchy, F. ; Herr, T. (Corresponding author)CFEL*DESY*
Ultraviolet astronomical spectrograph calibration with laser frequency combs from nanophotonic lithium niobate waveguides
Nature Communications 15(1), 7614 (2024) [10.1038/s41467-024-51560-x]2024     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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