| Issue |
EPJ Web Conf.
Volume 335, 2025
EOS Annual Meeting (EOSAM 2025)
|
|
|---|---|---|
| Article Number | 07009 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting - Optical Fiber Technology | |
| DOI | https://doi.org/10.1051/epjconf/202533507009 | |
| Published online | 22 September 2025 | |
https://doi.org/10.1051/epjconf/202533507009
Generalized Heterodyne Interferometry in Kerr Materials
Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS-UB, 9 avenue Alain Savary, 21000 DIJON, France
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Published online: 22 September 2025
Abstract
Interferometry has long been used to measure the phase of light signals. Combined with a heterodyne detection scheme, it allows to simultaneously and unambiguously record amplitude and phase variations. In this work, we exploit these well-known techniques to evaluate the nonlinear phase induced by the optical Kerr effect during the propagation of a laser pulse in a nonlinear medium. We show that the nonlinear index can easily be retrieved when the accumulated phase remains small, but counter-intuitive results can be observed at higher powers.
© The Authors, published by EDP Sciences, 2025
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