Galland, ChristopheBaehr-Jones, Thomas2017-12-012017-12-012017-12-012014https://infoscience.epfl.ch/handle/20.500.14299/142404Optical devices that do not employ magneto-optics materials or non-linear effects to achieve non-reciprocal light propagation. The optical devices are compatible with the fabrication of monolithic photonic integrated circuits such as silicon-on-insulator planar lightwave circuits. In particular the devices use demonstrated passive (beam-splitters, waveguides) and active (phase modulators) components to achieve non-reciprocal light propagation. The devices can be used as non-reciprocal optical modulators or optical isolators when driven by a periodic radio frequency (RF) electric source.Broadband optical isolator using phase modulators and mach-zehnder interferometerspatentUS201433476451864845