Why use optics for interconnects

There are many physical reasons for using optics for interconnection within otherwise electronic information processing machines. Because of the different physics underlying optics, it arguably has the physical potential to solve or mitigate most of the physical problems that limit electrical interconnections. Perhaps most obviously, optics does not rely on wires, with their associated resistance, capacitance, and inductance. Hence, problems associated with the physics of wires, such as pin inductance, high-speed signal and clock distortion, skew, and high-frequency attenuation and cross-talk are largely avoidable in principle. Issues such as electromigration do not exist