Picometer Sensitive Prototype of the Optical Truss Interferometer for
LISA
Picometer Sensitive Prototype of the Optical Truss Interferometer for
LISA
The optical truss interferometer (OTI) is a contingent subsystem proposed for the LISA telescopes to aid in the verification of a $1 \frac{\mathrm{pm}}{\sqrt{\mathrm{Hz}}}$ optical path length stability. Each telescope would be equipped with three pairs of compact fiber-coupled units, each forming an optical cavity with a baseline proportional to the …