Enhancement for High-Speed Switching of Magneto-Optic Fiber-Based Routing Using Single Magnetizing Coil

This paper discusses a compact and faster technique to switch magneto-optics (MO) routing systems. The new design utilizes a single coil to generate in-phase and out-of-phase magnetic fields to magnetize and demagnetize the MO material. Because of the use of high-current pMOS and nMOS transistors, along with a single coil, this new circuit enhances the switching speed and minimizes the package size. The authors have shown with experimental results that the proposed magnetic field generator circuit can produce forward and reverse magnetic fields to aid the MO material to switch faster.