Conversion of 30 W laser light at 1064 nm to 20 W at 2128 nm and comparison of relative power noise

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autorschaft

  • Julian Gurs
  • Nina Bode
  • Christian Darsow-Fromm
  • Henning Vahlbruch
  • Pascal Gewecke
  • Sebastian Steinlechner
  • Benno Willke
  • Roman Schnabel

Organisationseinheiten

Externe Organisationen

  • Universität Hamburg
  • Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut)
  • Maastricht University
  • Nationaal instituut voor subatomaire fysica (Nikhef)
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Aufsatznummer245008
Seitenumfang7
FachzeitschriftClassical and Quantum Gravity
Jahrgang41
Ausgabenummer24
PublikationsstatusVeröffentlicht - 15 Nov. 2024

Abstract

All current gravitational wave (GW) observatories operate with Nd:YAG lasers with a wavelength of 1064 nm. The sensitivity of future GW observatories could benefit significantly from changing the laser wavelength to approximately 2 µm combined with exchanging the current room temperature test mass mirrors with cryogenically cooled crystalline silicon test masses with mirror coatings from amorphous silicon and amorphous silicon nitride layers. Laser light of the order of ten watts with a low relative power noise (RPN) would be required. Here we use a laboratory-built degenerate optical parametric oscillator to convert the light from a high-power Nd:YAG laser to 2128 nm. With an input power of 30 W, we achieve an output power of 20 W, which corresponds to an external conversion efficiency of approximately 67%. We find that the RPN spectrum marginally increases during the wavelength conversion process. Our result is an important step in the development of low-noise light around 2 µm based on existing low-noise Nd:YAG lasers.

ASJC Scopus Sachgebiete

Zitieren

Conversion of 30 W laser light at 1064 nm to 20 W at 2128 nm and comparison of relative power noise. / Gurs, Julian; Bode, Nina; Darsow-Fromm, Christian et al.
in: Classical and Quantum Gravity, Jahrgang 41, Nr. 24, 245008, 15.11.2024.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Gurs, J, Bode, N, Darsow-Fromm, C, Vahlbruch, H, Gewecke, P, Steinlechner, S, Willke, B & Schnabel, R 2024, 'Conversion of 30 W laser light at 1064 nm to 20 W at 2128 nm and comparison of relative power noise', Classical and Quantum Gravity, Jg. 41, Nr. 24, 245008. https://doi.org/10.1088/1361-6382/ad8f8b
Gurs, J., Bode, N., Darsow-Fromm, C., Vahlbruch, H., Gewecke, P., Steinlechner, S., Willke, B., & Schnabel, R. (2024). Conversion of 30 W laser light at 1064 nm to 20 W at 2128 nm and comparison of relative power noise. Classical and Quantum Gravity, 41(24), Artikel 245008. https://doi.org/10.1088/1361-6382/ad8f8b
Gurs J, Bode N, Darsow-Fromm C, Vahlbruch H, Gewecke P, Steinlechner S et al. Conversion of 30 W laser light at 1064 nm to 20 W at 2128 nm and comparison of relative power noise. Classical and Quantum Gravity. 2024 Nov 15;41(24):245008. doi: 10.1088/1361-6382/ad8f8b
Gurs, Julian ; Bode, Nina ; Darsow-Fromm, Christian et al. / Conversion of 30 W laser light at 1064 nm to 20 W at 2128 nm and comparison of relative power noise. in: Classical and Quantum Gravity. 2024 ; Jahrgang 41, Nr. 24.
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AU - Darsow-Fromm, Christian

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AU - Gewecke, Pascal

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AU - Willke, Benno

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