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An integrated optical waveguide isolator by wafer direct bonding between the InGaAsP and Ce:YIG is reported. The layer structure of multi-mode section of the optical isolator is Ce:YIG/InGaAsP/InP. An external magnetic field is applied to the device to measure the optical isolation ratio. The isolation ratio was found to be 2.9 dB.
Date of Conference: 4-8 April 2005