Arm locking performance with the new LISA design Academic Article uri icon

abstract

  • Abstract The laser interferometer space antenna (LISA) is a future space-based gravitational wave detector designed to be sensitive to sources radiating in the low frequency regime (0.1 mHz to 1Hz). LISAs interferometer signals will be dominated by laser frequency noise which has to be suppressed by about seven orders of magnitude using an algorithm called time delay interferometry (TDI). Arm locking has been proposed to reduce the laser frequency noise by a few orders of magnitude to reduce the potential risks associated with TDI. In this paper, we present an updated performance model for arm locking for the new LISA mission using 2.5Gm arm lengths, the currently assumed clock noise, spacecraft motion based on LISA Pathfinder data and shot noise. We also update the Doppler frequency pulling estimates during lock acquisition.

published proceedings

  • Classical and Quantum Gravity

altmetric score

  • 7.33

author list (cited authors)

  • Ghosh, S., Sanjuan, J., & Mueller, G.

citation count

  • 4

complete list of authors

  • Ghosh, Sourath||Sanjuan, Josep||Mueller, Guido

publication date

  • June 2022