De Vine, GlennShaddock, DanielMcClelland, David2015-12-130146-9592http://hdl.handle.net/1885/72356The results of an experimental demonstration of a benchtop Michelson interferometer with a variable-reflectivity signal mirror are presented. This variable reflectivity is achieved by employment of a second Michelson interferometer. The results are presented in the form of the frequency responses obtained from this configuration with a signal laser injection method. It is shown that the frequency response can be dynamically tuned with independent peak frequency and bandwidth control. Such a configuration gives a tunable frequency response and has an application as a flexible gravitational-wave detector.Keywords: Bandwidth; Frequency response; Interferometers; Light reflection; Mirrors; Gravitational wave detectors; Signal detection20022015-12-11