Influence of non-uniformity in sapphire substrates for a gravitational wave telescope
arXiv:1907.12785 · doi:10.1103/PhysRevD.100.082005
Abstract
Construction of a large-scale cryogenic gravitational-wave telescope KAGRA has been completed and the four sapphire test masses have been installed in cryostat vacuum chambers. It recently turned out that a sapphire substrate used for one of the input test masses shows a characteristic strcuture in its transmission map due to non-uniformity of the crystal. We performed an interferometer simulation to see the influence of the non-uniformity using measured transmission/reflection maps.
arXiv comment8 pages, 8 figures
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Cited by in corpus (6)
- Performance of the KAGRA detector during the first joint observation with GEO 600 (O3GK)
- Prospects for improving the sensitivity of the cryogenic gravitational wave detector KAGRA
- Effects of mirror birefringence and its fluctuations to laser interferometric gravitational wave detectors
- Control of a filter cavity with coherent control sidebands
- Development of a polarimetry method toward in-situ substrate birefringence characterization of ground-based gravitational wave detectors
- In situ substrate birefringence characterization in gravitational wave detectors using a heterodyne polarimetry method