DTT interferometer and polarimeter systems

This is the authors' abstract. We don't add key points for this paper.

Interferometers and polarimeters are commonly used in plasma experiments, particularly in magnetically confined fusion experiments, to measure plasma electron density and provide valuable insights on internal magnetic fields, respectively. This paper presents a concise overview of the design and development status of these diagnostics for the Divertor Tokamak Test facility (DTT) experiment, along with estimates of the expected diagnostic signals.