Magneto-optical photonic crystal 1 × 3 switchable power divider

► A new integrated magneto-optical photonic crystal 1 × 3 switchable power divider is proposed. ► It can be switched by an external magneto-static signal applied to the device. ► It has wide branching angles. ► Without external magnetic field the input power completely switched to one of the output. ► With an external magnetic field the input power is divided equally between the three outputs.