Interference-based Research of the Goos-Hänchen Effect
DOI:
https://doi.org/10.31861/sisiot2025.1.01006Keywords:
Goos-Hänchen effect, total internal reflection, orthogonal polarizations, fiber optic communication lines, polarizerAbstract
The paper provides an overview of the Goos-Hänchen effect, which demonstrate that upon total internal reflection of a polarized beam, longitudinal shifts of the beam occur, differing for various polarizations. These shifts must be taken into account when a beam propagates through an optical fiber, as in a fiber-optic communication system, total internal reflection of the beam occurs at the core-cladding interface of the fiber. The paper presents a novel method for measuring longitudinal Goos-Hänchen shifts, which is based on three-beam interference. Using an experimental setup that implements this method, it was possible to measure the phase shifts of orthogonal beams separately. It was established that during the total internal reflection of coaxial, orthogonally linearly polarized beams, there is no change in the phase difference between these beams, even in the presence of the Goos-Hänchen effect. This result suggests the feasibility of the simultaneous use of orthogonally linearly polarized beams in fiber-optic communication lines and provides a positive prognosis for such applications.
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