Details
Originalsprache | Englisch |
---|---|
Seiten (von - bis) | 16407-16416 |
Seitenumfang | 10 |
Fachzeitschrift | Optics express |
Jahrgang | 28 |
Ausgabenummer | 11 |
Publikationsstatus | Veröffentlicht - 25 Mai 2020 |
Extern publiziert | Ja |
Abstract
We present an interrogation laser system for a transportable strontium lattice clock operating at 698 nm, which is based on an ultra-low-expansion glass reference cavity. Transportability is achieved by implementing a rigid, compact, and vibration insensitive mounting of the 12 cm-long reference cavity, sustaining shocks of up to 50 g. The cavity is mounted at optimized support points that independently constrain all degrees of freedom. This mounting concept is especially beneficial for cavities with a ratio of length L over diameter D L/D > 1. Generally, large L helps to reduce thermal noise-induced laser frequency instability while small D leads to small cavity volume. The frequency instability was evaluated, reaching its thermal noise floor of mod σy ≈ 3 × 10−16 for averaging times between 0.5 s and 10 s. The laser system was successfully operated during several field studies.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
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in: Optics express, Jahrgang 28, Nr. 11, 25.05.2020, S. 16407-16416.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
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TY - JOUR
T1 - Transportable interrogation laser system with an instability of mod σy = 3 × 10−16
AU - Häfner, Sebastian
AU - Herbers, Sofia
AU - Vogt, Stefan
AU - Lisdat, Christian
AU - Sterr, Uwe
N1 - Funding information: We thank Jacopo Grotti and Silvio B. Koller for operating the clock during the field studies and for providing the offset-AOM data. Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy EXC-2123 QuantumFrontiers 390837967 and CRC 1128 geoQ within project A03.
PY - 2020/5/25
Y1 - 2020/5/25
N2 - We present an interrogation laser system for a transportable strontium lattice clock operating at 698 nm, which is based on an ultra-low-expansion glass reference cavity. Transportability is achieved by implementing a rigid, compact, and vibration insensitive mounting of the 12 cm-long reference cavity, sustaining shocks of up to 50 g. The cavity is mounted at optimized support points that independently constrain all degrees of freedom. This mounting concept is especially beneficial for cavities with a ratio of length L over diameter D L/D > 1. Generally, large L helps to reduce thermal noise-induced laser frequency instability while small D leads to small cavity volume. The frequency instability was evaluated, reaching its thermal noise floor of mod σy ≈ 3 × 10−16 for averaging times between 0.5 s and 10 s. The laser system was successfully operated during several field studies.
AB - We present an interrogation laser system for a transportable strontium lattice clock operating at 698 nm, which is based on an ultra-low-expansion glass reference cavity. Transportability is achieved by implementing a rigid, compact, and vibration insensitive mounting of the 12 cm-long reference cavity, sustaining shocks of up to 50 g. The cavity is mounted at optimized support points that independently constrain all degrees of freedom. This mounting concept is especially beneficial for cavities with a ratio of length L over diameter D L/D > 1. Generally, large L helps to reduce thermal noise-induced laser frequency instability while small D leads to small cavity volume. The frequency instability was evaluated, reaching its thermal noise floor of mod σy ≈ 3 × 10−16 for averaging times between 0.5 s and 10 s. The laser system was successfully operated during several field studies.
UR - http://www.scopus.com/inward/record.url?scp=85085485168&partnerID=8YFLogxK
U2 - 10.1364/OE.390105
DO - 10.1364/OE.390105
M3 - Article
C2 - 32549464
AN - SCOPUS:85085485168
VL - 28
SP - 16407
EP - 16416
JO - Optics express
JF - Optics express
SN - 1094-4087
IS - 11
ER -