28 August 2016 A network of heterodyne laser interferometers for monitoring and control of large ring-lasers
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The sensitivity achieved by large ring-laser gyroscopes will make it possible to detect faint relativistic effects related to the rotation of the Earth’s mass. This task requires a strict control of the ring cavity geometry (shape and orientation), which can be performed by a novel network of portable heterodyne interferometers, capable of measuring the absolute distance betweeen two retro-reflectors with a nominal accuracy better than 1nm. First steps have been taken towards the realization of this device and a starting prototype of distance gauge is under development and test.
Conference Presentation
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Alberto Donazzan, Alberto Donazzan, Giampiero Naletto, Giampiero Naletto, Maria G. Pelizzo, Maria G. Pelizzo, Davide Cuccato, Davide Cuccato, Alessandro Beghi, Alessandro Beghi, Antonello Ortolan, Antonello Ortolan, Jacopo Belfi, Jacopo Belfi, Filippo Bosi, Filippo Bosi, Andreino Simonelli, Andreino Simonelli, Nicolò Beverini, Nicolò Beverini, Giorgio Carelli, Giorgio Carelli, Enrico Maccioni, Enrico Maccioni, Rosa Santagata, Rosa Santagata, Alberto Porzio, Alberto Porzio, Angelo Tartaglia, Angelo Tartaglia, Angela Di Virgilio, Angela Di Virgilio, } "A network of heterodyne laser interferometers for monitoring and control of large ring-lasers", Proc. SPIE 9960, Interferometry XVIII, 99600G (28 August 2016); doi: 10.1117/12.2237638; https://doi.org/10.1117/12.2237638


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