A precise system for measuring weak optoacoustic perturbations

The practical implementation of a high-sensitivity measuring system based on an extended Fabry-Perot interferometer, which reacts to small variations of its optical length, is presented. The attained sensitivity is limited by the spectral noise density of optical pumping, which is lower than the res...

Full description

Saved in:
Bibliographic Details
Published in:Instruments and experimental techniques (New York) 2010-05, Vol.53 (3), p.423-429
Main Authors: Bezrukov, L. B., Kvashnin, N. L., Motylev, A. M., Oreshkin, S. I., Popov, S. M., Rudenko, V. N., Samoilenko, A. A., Skvortsov, M. N., Tsepkov, A. N., Cheprasov, S. A., Yudin, I. S.
Format: Article
Language:English
Subjects:
Electrical Engineering
General Experimental Technique
Measurement Science and Instrumentation
Physical Chemistry
Physics
Physics and Astronomy
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The practical implementation of a high-sensitivity measuring system based on an extended Fabry-Perot interferometer, which reacts to small variations of its optical length, is presented. The attained sensitivity is limited by the spectral noise density of optical pumping, which is lower than the resonance spectral density of thermal fluctuations of the interferometer base by one order of magnitude. Structurally, the system is an optoacoustic gravitational antenna without cooling (OGRAN). Extrapolating the results obtained for a pilot model to a large-size variant of the setup fo recasts a sensitivity sufficient for searching for gravitational bursts in the Galaxy and its nearest vicinity (within 100 kpc).
ISSN:0020-4412
1608-3180
DOI:10.1134/S0020441210030176