Details
| Original language | English |
|---|---|
| Pages (from-to) | 233-242 |
| Number of pages | 10 |
| Journal | Applied Physics B: Lasers and Optics |
| Volume | 113 |
| Issue number | 2 |
| Publication status | Published - 18 May 2013 |
Abstract
Thermal noise in optical cavities imposes a severe limitation in the stability of the most advanced frequency standards at a level of a few 10 -16 √s/τ for long averaging times τ. In this paper, we describe two schemes for reducing the effect of thermal noise in a reference cavity. In the first approach, we investigate the potential and limitations of operating the cavity close to instability, where the beam diameter on the mirrors becomes large. Our analysis shows that even a 10-cm short cavity can achieve a thermal-noise-limited fractional frequency instability in the low 10-16 regime. In the second approach, we increase the length of the optical cavity. We show that a 39.5-cm long cavity has the potential for a fractional frequency instability even below 10-16, while it seems feasible to achieve a reduced sensitivity of <10-10/g for vibration-induced fractional length changes in all three directions.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Applied Physics B: Lasers and Optics, Vol. 113, No. 2, 18.05.2013, p. 233-242.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Reducing the effect of thermal noise in optical cavities
AU - Amairi, Sana
AU - Legero, Thomas
AU - Kessler, Thomas
AU - Sterr, Uwe
AU - Wübbena, Jannes B.
AU - Mandel, Olaf
AU - Schmidt, Piet Oliver
N1 - Funding information: This work is supported by the DFG through the Centre for Quantum Engineering and Space-Time Research (QUEST), by ESA through TRP AO4640/05/NL/PM and GSTP AO/1-6530/10/ NL/NA and by the European Metrology Research Program (EMRP). JRP SIB04. J.B.W. acknowledges support from the Hannover School for Laser, Optics and Space-Time Research (HALOSTAR) and the German National Academic Foundation (Studienstiftung des deutschen Volkes).
PY - 2013/5/18
Y1 - 2013/5/18
N2 - Thermal noise in optical cavities imposes a severe limitation in the stability of the most advanced frequency standards at a level of a few 10 -16 √s/τ for long averaging times τ. In this paper, we describe two schemes for reducing the effect of thermal noise in a reference cavity. In the first approach, we investigate the potential and limitations of operating the cavity close to instability, where the beam diameter on the mirrors becomes large. Our analysis shows that even a 10-cm short cavity can achieve a thermal-noise-limited fractional frequency instability in the low 10-16 regime. In the second approach, we increase the length of the optical cavity. We show that a 39.5-cm long cavity has the potential for a fractional frequency instability even below 10-16, while it seems feasible to achieve a reduced sensitivity of <10-10/g for vibration-induced fractional length changes in all three directions.
AB - Thermal noise in optical cavities imposes a severe limitation in the stability of the most advanced frequency standards at a level of a few 10 -16 √s/τ for long averaging times τ. In this paper, we describe two schemes for reducing the effect of thermal noise in a reference cavity. In the first approach, we investigate the potential and limitations of operating the cavity close to instability, where the beam diameter on the mirrors becomes large. Our analysis shows that even a 10-cm short cavity can achieve a thermal-noise-limited fractional frequency instability in the low 10-16 regime. In the second approach, we increase the length of the optical cavity. We show that a 39.5-cm long cavity has the potential for a fractional frequency instability even below 10-16, while it seems feasible to achieve a reduced sensitivity of <10-10/g for vibration-induced fractional length changes in all three directions.
UR - http://www.scopus.com/inward/record.url?scp=84890120533&partnerID=8YFLogxK
U2 - 10.1007/s00340-013-5464-8
DO - 10.1007/s00340-013-5464-8
M3 - Article
AN - SCOPUS:84890120533
VL - 113
SP - 233
EP - 242
JO - Applied Physics B: Lasers and Optics
JF - Applied Physics B: Lasers and Optics
SN - 0946-2171
IS - 2
ER -