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Opt Lett. 2009 Oct 15;34(20):3184-6. doi: 10.1364/OL.34.003184.

Experimental demonstration of a suspended diffractively coupled optical cavity.

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  • 11Department of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK. m.edgar@physics.gla.ac.uk


All-reflective optical systems are under consideration for future gravitational wave detector topologies. One approach in proposed designs is to use diffraction gratings as input couplers for Fabry-Perot cavities. We present an experimental demonstration of a fully suspended diffractively coupled cavity and investigate the use of conventional Pound-Drever-Hall length sensing and control techniques to maintain the required operating condition.

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