Nonlinear phenomena in multimode fibers

Modeling of nonlinear propagation in multimode fibers - influence of fiber parameter on nonlinear phenomena. Investigation of multimode solitons and frequency conversion. The project is financed by the National Science Centre, Poland.

Main tasks:

• Perform the linear simulations in multimode fibers (modeling fiber designs appropriate for multimode soliton propagation)
• Perform nonlinear simulation using MMGNLSE and UPPE model
• Verifying possibility of using deep learning methods to classify modes propagating through multimode fibers, model nonlinear propagation and analyze experimental data
• Preparing posters for conferences, scientifics reports and papers

Related works:

• Mode recognition in multimode optical fibers using deep learning (Conference MLinPL 2019)
• K. Tarnowski, S. Majchrowska, P. Béjot, and B. Kibler, “Numerical modelings of ultrashort pulse propagation and conical emission in multimode optical fibers,” J. Opt. Soc. Am. B 38, 732-742 (2021)

Technologies used: Matlab, COMSOL Multiphysics

Methods used: Convolutional Neural Networks, Image classification