Gray, Malcolm BMcRae, Terry GHsu, MagnusHerrmann, JanShaddock, Daniel2015-12-132015-12-13May 6-11 29781467318396http://hdl.handle.net/1885/71307We report on a digital phasemeter for application in precision length measurement using laser interferometry. Our interferometer demonstrates a length sensitivity of 0.5 pm/√Hz above 5 Hz, and a cyclic error of better than 50 pm.Keywords: Cyclic errors; Length measurement; Laser interferometry; Lasers20122016-02-24