Time Delay Interferometry using the UF LISA Benchtop Simulator

At the University of Florida, we are developing an experimental LISA simulator to test the implementation of various aspects of LISA interferometry including arm‐locking and time delay interferometry (TDI). Realistic light travel times are created in the lab using an electronic phase delay technique and signals are read with a LISA‐like phasemeter. TDI relies on a strong correlation between the LISA signals taken at different times and locations. In this paper, we present results from the first‐generation of the simulator showing that we are able to create LISA‐like optical signals in the lab and measure and recombine them to cancel several orders of magnitude laser phase noise.