Abstract
In a planar waveguide including magneto-optical (MO) material with in-plane magnetization, a MO phase shift due to a first-order MO effect is induced. A Mach-Zehnder interferometer (MZI)-based optical isolator and circulator are fabricated by the direct bonding technique between silicon and MO garnets. The MZI can provide optical switching by dynamic control of the magnetization and latching operation with nonvolatile magnetic film. In this paper, waveguide-type MO isolator and switch for photonic integrated circuits are presented.
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