<human>:  How does optical computing work?
<bot>: Optical computing is a new field of research that uses light to perform computations. It is a very promising technology that could one day replace silicon-based computers. In optical computing, light is used to carry out operations such as addition, multiplication, and other mathematical operations. The light is sent through optical fibers, which are thin strands of glass that carry light. The light is then used to perform the operations.