The idea that light could travel through glass strands originated as far back as the 1840s, when physicists Daniel Collodon and Jacques Babinet (1794-1872) demonstrated that light could travel through bending water jets in fountains. The first person to display an image through a bundle of optical fibers was a medical student in Germany by the name of Heinrich Lamm, who, in 1930, used a bundle of fibers to project the image of a light bulb. In his research, Lamm ultimately used optical fibers to observe and probe areas of the human body without making large incisions. From that point on, serious research in optical fibers ensued, expanding later with the development of the laser.
Fiber optics are glass fibers that transmit laser light that can contain digital information more quickly and efficiently than metal cables.