首页|Measurement of the optical phase using two simultaneous interferograms with a polarized Mach–Zehnder interferometer coupled to a replicator system
Measurement of the optical phase using two simultaneous interferograms with a polarized Mach–Zehnder interferometer coupled to a replicator system
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NSTL
Elsevier
? 2021 Elsevier B.V.In this study, we present an alternative method to measure the optical phase of transparent objects using two coupled interferometers. The first system comprises a polarized Mach–Zehnder interferometer (PMZI) that generates an interference pattern with crossed circular polarization. The second component is a compact rectangular Sagnac system (CRSS), which functions as a replicator and generates two interferograms. Because the trajectories of the two replicas are cyclical and collinear in the CRSS, no aberrations are produced; moreover, a controllable lateral displacement is achieved to separate the two replicas. By placing a mask with two linear polarizers at the output of the coupled system, a controllable phase shift is produced on each replicated interferogram. The results achieved with static transparent objects and a time-varying test are shown, demonstrating the feasibility of our proposed method.
NSTL
Elsevier
