Magnetic Field Generator Design for Magneto-Optic Switching Applications

In optical communications, magneto-optic switching technologies are emerging alternatives, as well as complimentary solutions to their electro-optic counterpart. Their main attractions include low-power and low-cost solutions for signal routing used in fiber-based and all-optical circuits needed in fast dynamic communications systems. However, design of the magnetic field generator system required for these devices is a challenge that has limited their performance and integration onto silicon-based technologies. In this work, a novel approach to designing magnetic field generators for magneto-optic switching systems is provided. This practical field generation design method for magneto-optical interferometers highlights important trade-offs specific to different needs and applications. Example usage of this design process is provided in the application of a magneto-optic switch of ring resonator configuration. Optical and electrical results are also provided and discussed.