Modeling of the Fringe Shift for Unclad Glass Fibers Using Ordinary Multiple Beam Interference
摘要
A quadratic model is suggested to describe the fringe shift that occurred due to the phase variations of unclad glass fibers introduced between the two plates of the liquid wedge interferometer. The fringe shift of the phase object is represented in the harmonic term, which appears in the denominator of the Airy distribution formula of Fabry–Perot’s interferometer. A computer program is written to plot the computer fringe shifts of the described model.