Novel Method for Mach-Zehnder Interferometer Phase Stabilization

Abstract

The Mach-Zehnder Interferometer (MZI) is a device used across many areas of research including quantum computing, optical communication, sensing, and imaging. The proper function of an MZI depends upon the stabilization of the relative phase between its arms as thermal gradients and vibrations can cause this phase to drift. This thesis proposes a novel method for MZI phase stabilization. The stabilization method was modelled mathematically and simulated, and a low cost and simple prototype control circuit was constructed which successfully proved the feasibility of this stabilization method. Finally, the initial mathematical model was refined according to experimental observations. This novel stabilization method could be impactful to any field or application which depends upon the use of MZIs.