Advances in optical wavefront shaping have positioned multimode fibers (MMFs) as promising alternatives to single-mode fibers for high-data-rate communication and minimally invasive medical procedures. However, the complex modal behavior of light in MMFs limits their potential. We have developed a novel, single-step approach to retrieve the transmission matrix of MMFs, enabling coherent light propagation and effective phase correction. This method successfully transmits structured light beams, such as Laguerre-Gaussian modes and handwritten characters, while an off-axis holographic technique captures intensity and phase information. Our findings pave the way for breakthroughs in telecommunications and healthcare.

Lead PI: Dr. Moussa Ngom