The compensation of the noise due to angular oscillations of the laser beam in the Precision Laser Inclinometer

An experimental method for the compensation of the noise originated by the laser ray angular oscillations was proposed and experimentally proved for the Precision Laser Inclinometer (PLI). The PLI noise spectral density was reduced by factor 30× and reached 10 –8 rad/Hz 1/2 level at the frequency of...

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Bibliographic Details
Published in:Physics of particles and nuclei letters 2017-11, Vol.14 (6), p.930-938
Main Authors: Azaryan, N., Budagov, J., Lyablin, M., Pluzhnikov, A., Di Girolamo, B., Gayde, J.-Ch, Mergelkuhl, D.
Format: Article
Language:English
Subjects:
Compensation
Laser beams
Lasers
Methods of Physical Experiment
Noise
Oscillations
Particle and Nuclear Physics
Physics
Physics and Astronomy
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Summary:An experimental method for the compensation of the noise originated by the laser ray angular oscillations was proposed and experimentally proved for the Precision Laser Inclinometer (PLI). The PLI noise spectral density was reduced by factor 30× and reached 10 –8 rad/Hz 1/2 level at the frequency of 5 × 10 –5 Hz. The angular noise of a laser ray leaving the one-mode optical fiber in the vacuum and in stabilized temperature conditions has been measured. The amplitude of the oscillations for one-day observation reached 0.46 μrad.
ISSN:1547-4771
1531-8567
DOI:10.1134/S154747711706022X