Researchers Sculpt Light onto Glass Fibers

University of Maryland researchers led by Avik Dutt demonstrated laser-sculpted microresonators on glass fibers to guide light around obstacles. Published in Nature Communications in 2026, the team chained 21 microresonators to create a one-way optical highway. This method allows adaptable trimming via laser heat and eliminates the need for power-hungry components or heavy cooling systems required by traditional microchips.