Details
| Original language | English |
|---|---|
| Pages (from-to) | 7276-7288 |
| Number of pages | 13 |
| Journal | Optics express |
| Volume | 32 |
| Issue number | 5 |
| Publication status | Published - 14 Feb 2024 |
Abstract
Optical resonators are used for the realisation of ultra-stable frequency lasers. The use of high reflectivity multi-band coatings allows the frequency locking of several lasers of different wavelengths to a single cavity. While the noise processes for single wavelength cavities are well known, the correlation caused by multi-stack coatings has as yet not been analysed experimentally. In our work, we stabilise the frequency of a 729 nm and a 1069 nm laser to one mirror pair and determine the residual-amplitude modulation (RAM) and photo-thermal noise (PTN). We find correlations in PTN between the two lasers and observe coherent cancellation of PTN for the 1069 nm coating. We show that the fractional frequency instability of the 729 nm laser is limited by RAM at 1 × 10−14. The instability of the 1069 nm laser is at 3 × 10−15 close to the thermal noise limit of 1.5
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Optics express, Vol. 32, No. 5, 14.02.2024, p. 7276-7288.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Coherent photo-thermal noise cancellation in a dual-wavelength optical cavity for narrow-linewidth laser frequency stabilisation
AU - Dawel, Fabian
AU - Wilzewski, Alexander
AU - Herbers, Sofia
AU - Pelzer, Lennart
AU - Kramer, Johannes
AU - Hild, Marek B.
AU - Dietze, Kai
AU - Krinner, Ludwig
AU - Spethmann, Nicolas C.H.
AU - Schmidt, Piet O.
N1 - Funding Information: Funding. Deutsche Forschungsgemeinschaft (EXC-2123 QuantumFrontiers - 390837967, SFB 1227, project B03 - 274200144, SFB 1464 TerraQ, Project-ID 434617780, and Project-ID 366146996); European Metrology Programme for Innovation and Research; Horizon 2020 Framework Programme research and innovation programme (20FUN01 TSCAC); European Research Council (101019987); State of Lower Saxony through Niedersächsisches Vorab (QVLS-Q1).
PY - 2024/2/14
Y1 - 2024/2/14
N2 - Optical resonators are used for the realisation of ultra-stable frequency lasers. The use of high reflectivity multi-band coatings allows the frequency locking of several lasers of different wavelengths to a single cavity. While the noise processes for single wavelength cavities are well known, the correlation caused by multi-stack coatings has as yet not been analysed experimentally. In our work, we stabilise the frequency of a 729 nm and a 1069 nm laser to one mirror pair and determine the residual-amplitude modulation (RAM) and photo-thermal noise (PTN). We find correlations in PTN between the two lasers and observe coherent cancellation of PTN for the 1069 nm coating. We show that the fractional frequency instability of the 729 nm laser is limited by RAM at 1 × 10−14. The instability of the 1069 nm laser is at 3 × 10−15 close to the thermal noise limit of 1.5
AB - Optical resonators are used for the realisation of ultra-stable frequency lasers. The use of high reflectivity multi-band coatings allows the frequency locking of several lasers of different wavelengths to a single cavity. While the noise processes for single wavelength cavities are well known, the correlation caused by multi-stack coatings has as yet not been analysed experimentally. In our work, we stabilise the frequency of a 729 nm and a 1069 nm laser to one mirror pair and determine the residual-amplitude modulation (RAM) and photo-thermal noise (PTN). We find correlations in PTN between the two lasers and observe coherent cancellation of PTN for the 1069 nm coating. We show that the fractional frequency instability of the 729 nm laser is limited by RAM at 1 × 10−14. The instability of the 1069 nm laser is at 3 × 10−15 close to the thermal noise limit of 1.5
UR - http://www.scopus.com/inward/record.url?scp=85186124190&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2311.11610
DO - 10.48550/arXiv.2311.11610
M3 - Article
C2 - 38439412
AN - SCOPUS:85186124190
VL - 32
SP - 7276
EP - 7288
JO - Optics express
JF - Optics express
SN - 1094-4087
IS - 5
ER -