When you work in silicon photonics, you work with a technology made up of silicon integrated circuits and semiconductor lasers, which completes a data transfer between computer chips via optical rays. Silicon photonics also facilitate a high-speed network connection between data centers. Some of the roles available to you involve designing components, like photonic integrated circuits. Your general responsibilities include developing the layout for essential fabrication operations, planning the sequence of operations, and conducting tests on the system components throughout the process. Your other duties largely depend on the specific engineering or design role you choose.