期刊
SENSORS
卷 21, 期 5, 页码 -出版社
MDPI
DOI: 10.3390/s21051877
关键词
Mach– Zehnder interferometer; Fabry– Perot resonator; periodic diffraction structure; gravitational wave detection; spectral resolution; frequency shift
资金
- Russian Foundation for Basic Research [19-29-11026]
A compact tabletop laser interferometer with Fabry-Perot resonators is proposed for detecting gravitational waves, achieving high spectral resolution of 10(-23) cm(-1) at a short distance of 1-3 m between mirrors. The interferometer is more sensitive to shorter-wave laser radiation, and a method based on measuring the correlation function of radiation intensities is suggested for detecting gravitational waves.
It is highly desirable to have a compact laser interferometer for detecting gravitational waves. Here, a small-sized tabletop laser interferometer with Fabry-Perot resonators consisting of two spatially distributed mirrors for detecting gravitational waves is proposed. It is shown that the spectral resolution of 10(-23) cm(-1) can be achieved at a distance between mirrors of only 1-3 m. The influence of light absorption in crystals on the limiting resolution of such resonators is also studied. A higher sensitivity of the interferometer to shorter-wave laser radiation is shown. A method for detecting gravitational waves is proposed based on the measurement of the correlation function of the radiation intensities of non-zero-order resonant modes from the two arms of the Mach-Zehnder interferometer.
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