| 摘要 |
The integrated magneto-optical modulator with optical isolator of the present invention comprises an optical isolator unit (2,4,6,7), a magneto-optical modulator unit (6,8,9,10), and an impedance adjuster. The optical isolator unit rotates a polarization of an incident light (Pin) 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 transmits the modulated light outside (Pout). 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 in a single package (70). <IMAGE>
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