The integrated magneto-optical modulator with optical isolator of the present
invention comprises an optical isolator unit, a magneto-optical modulator unit,
an impedance adjuster. The optical isolator unit rotates a polarization of an incident
light from a light source to transmit the light with rotated polarization, and
eliminates a reflected feedback light toward the light source. The magneto-optical
modulator unit modulates an intensity of the light from the optical isolator unit
and transmitting the modulated light outside. The impedance adjuster adjusts electrical
impedance at the magneto-optical modulator unit in order to effectively introduce
the high-frequency signal for light modulation to the magneto-optical modulator
unit. Further, the optical isolator unit and the magneto-optical modulator unit
are contained a single package.
