At present, optical fiber has been widely used in many fields, but scientists and manufacturers have never stopped exploring the optical fiber production process. Recently, Professor Cristiano Cordeiro, from the University of Campinas in Brazil, has developed a new process, which not only greatly shortens the production time and improves the production capacity, but also makes the production cost 100 times cheaper. < / P > < p > at present, there are various ways to produce optical fibers. One of the most common technologies is to start with short and fat cylindrical optical fibers, which is called preform. It is suspended vertically on a high fiber drawing tower and its lower end is heated to melt it. Then, under the action of gravity, thin lines of molten material extend along the length of the tower. After cooling and curing, the wire becomes a finished fiber. < / P > < p > and Professor Cordeiro has developed an alternative system that allows raw materials to be drawn on the same equipment as a microwave oven. In Cordeiro’s setup, transparent thermoplastic polymer particles are fed into the device, which then melts them and extrudes the molten material through a custom titanium nozzle. Depending on the configuration of the nozzle, the extruded thin fiber can be solid, or it can have multiple air channels running through it longitudinally – the latter is called microstructural fiber, or MOF. After extrusion, the fiber is pulled through an adjacent set of rollers. In this way, during cooling and setting, the optical fiber will be tightened, so that any channel inside the fiber will not collapse by itself. It is claimed that the whole process is not only faster, cheaper and more compact than traditional technology, but also that the fiber length is limited by the number of particles that can be fed into the extruder. Epic Games accused Google of monopolizing the latter, which may have a better chance than apple