LIGO Document G0900585-v1

Demonstration Of A Diffractively-Coupled Fabry Perot Cavity

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G - Presentations (eg Graphics)
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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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