The size of optical chips is usually measured on the nanometer scale. At present, the manufacturing technology of optical chips has been developed to the nanometer level, and the size can reach tens of nanometers or even smaller. This tiny size allows optical chips to achieve higher integration and faster data transfer speeds. With the continuous advancement of technology, the size of optical chips may be further reduced in the future to meet the growing demand for data processing.
Most of the chips used in routers are 14 nanometers, and there are also 12 nanometers.