Large interferometers for small displacements: a technological view of gravitational wave detection

K. A. Strain

doi:10.1117/12.837635

5 October 2009 Large interferometers for small displacements: a technological view of gravitational wave detection

K. A. Strain

Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 750351 (2009) https://doi.org/10.1117/12.837635
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom

Abstract

The search for gravitational waves has led to the development of km-scale interferometers with sub attometre displacement sensitivity. The challenge of meeting this goal is divided into two aspects. First the main optical components of the interferometer - the test masses - must be sufficiently quiet, and then the interferometric measurement of the relative test mass positions must be performed to the required degree of sensitivity. Key design elements of modern interferometers are discussed, reviewing the most important aspects. Gravitational astronomy will require 10 to 100 times improved sensitivity beyond that of the initial instruments and potential techniques are considered.

Citation Download Citation

K. A. Strain "Large interferometers for small displacements: a technological view of gravitational wave detection", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 750351 (5 October 2009); https://doi.org/10.1117/12.837635

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