A vibration-insensitive optical cavity and absolute determination of its ultrahigh stability.
We use the three-cornered-hat method to evaluate the absolute frequency stabilities of three different ultrastable reference cavities, one of which has a vibration-insensitive design that does not even require vibration isolation. An Nd:YAG laser and a diode laser are implemented as light sources. We observe approximately 1 Hz beat note linewidths between all three cavities. The measurement demonstrates that the vibration-insensitive cavity has a good frequency stability over the entire measurement time from 100 ms to 200 s. An absolute, correlation-removed Allan deviation of 1.4 x 10(-15) at s of this cavity is obtained, giving a frequency uncertainty of only 0.44 Hz.
Zhao
Y N
YN
Max Planck Institute for the Science of Light, and Institute of Optics, Information and Photonics, University Erlangen-Nuremberg, Günther-Scharowsky-Str. 1 / Building 24, 91058 Erlangen, Germany.
Zhang
J
J
Stejskal
A
A
Liu
T
T
Elman
V
V
Lu
Z H
ZH
Wang
L J
LJ
D016477:Artifacts; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014159:Transducers; D014732:Vibration