MG11 
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Design and construction of the LISA Technology Package flight model optical bench interferometer

The LISA Technology Package (LTP) is an experiment that will fly on board the space based gravitational wave demonstrator mission, LISA Pathfinder. The LTP optical bench interferometer will be used to monitor the distance between two test masses with a sensitivity of 10pm/sqrt(Hz) in the measurement band of 3mHz to 30mHz. The precision alignment processes required to manufacture this ultra-stable, space worthy optical bench will be described and the design and construction status presented.