Professor Ramy El-Ganainy
Assistant Professor, Department of Physics
Michigan Technological University
On-Chip Optical Isolators
One of the fundamental issues in laser engineering is protection against reflection from output light. This task is achieved by using optical isolators which are devices that allow only uni-directional light propagation. Currently, the operation of commercial isolators is based on Faraday rotation and thus requires large magnetic fields and bulky magnets.