FIELD: laser-interferometer gravitation-wave detectors, possible use for detection of low frequency periodic gravitation-wave signals from binary relativistic astrophysical objects.
SUBSTANCE: in accordance to the invention, into each resonator of two-resonator laser system with common active environment and geometrically equivalent contours, thermal compensators are introduced, with usage of piezo-elements for direct and reverse transformation, which ensure equality of optical paths of first and second resonators, which may be disrupted due to temperature changes.
EFFECT: ensured compensation of temperature fluctuations of difference of phases of optical streams, making it possible to reduce low frequency phase noises.
1 dwg
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