Recent Developments in Homodyne Interferometry
نویسنده
چکیده
Continuing developments in homodyne laser interferometer systems [1] are improving both their measurement performance capability and their ease of installation. This paper gives an overview of such a system and explains several of the key design features. Firstly, an overview of the optical detection scheme is given. Secondly, a novel method for improving the Sub Divisional Error (SDE) in a Column Reference (CR) interferometer is described. Finally a technique for improving the frequency stability of fibre optic coupled laser sources is explained.
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