The ST7 Interferometer
arXiv:gr-qc/0310036 · doi:10.1088/0264-9381/21/5/030
Abstract
Two homodyne Michelson interferferometers aboard the LISA Pathfinder spacecraft will measure the the positions of two free-floating test masses, as part of the NASA ST7 mission. The interferometer is required to measure the separation between the test masses with sensitivity of 30 pm/sqrt(Hz) at 10 mHz. The readout scheme is described, error sources are analyzed, and experimental results are presented.
11 pages, 5 figures including 1 photo, for special issue of "Classical and Quantum Gravity," proceedings of Amaldi 5