A network of heterodyne laser interferometers for monitoring and control of large ring-lasers

Donazzan, Alberto; Naletto, Giampiero; Pelizzo, Maria G.; Cuccato, Davide; Beghi, Alessandro; Ortolan, Antonello; Belfi, Jacopo; Bosi, Filippo; Simonelli, Andrea; Beverini, Nicolò; Carelli, Giorgio; Maccioni, Enrico; Santagata, Rosa; Porzio, Alberto; Tartaglia, Angelo and Di Virgilio, Angela (2016): A network of heterodyne laser interferometers for monitoring and control of large ring-lasers. Interferometry XVIII, 28. August - 1. September 2016, San Diego, California, United States. Proceedings of SPIE. Vol. 9960, UNSP 99600G Bellingham, Washington: SPIE Digital Library.

Abstract

The sensitivity achieved by large ring-laser gyroscopes will make it possible to detect faint relativistic effects related to the rotation of the Earths 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

• Item Type: Conference or Workshop Item (Report)
• Faculties: Geosciences > Department of Earth and Environmental Sciences
• Subjects: 500 Science > 550 Earth sciences and geology
• ISSN: 0277-786X
• Place of Publication: Bellingham, Washington
• Language: English