GRAVITATIONAL WAVE DETECTOR Russian patent published in 2011 - IPC G01V7/00 

FIELD: physics.

SUBSTANCE: invention relates to laser interferometer gravitational wave (GW) detectors and can be used to detect low-frequency GW signals from double relativistic astrophysical objects. By including in the first resonator a double-resonator laser system with a common active medium, a first totally reflecting mirror, a semitransparent separating mirror and linear polarisers in each resonator, an additional totally reflecting mirror lying in parallel between the semitransparent separating mirror and a second totally reflecting mirror and by placing the semitransparent separating mirror which ensures angle of reflection of an optical beam from that mirror relative the incident optical beam equal to or greater than 90°, as well as by ensuring equality between the geometric length from the additional totally reflecting mirror to the second totally reflecting mirror and the geometric length from the semitransparent separating mirror to a third totally reflecting mirror, reaction of the GW detector to graviational radiation only with a horizontal polarisation vector parallel to two additional totally reflecting mirrors is ensured.

EFFECT: finding direction of low-frequency gravitational radiation from double relativistic astrophysical objects.

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