| 摘要 |
<p>A variable optical attenuator is disclosed. The variable optical attenuator includes a substrate having a first groove, a second groove, and a third groove, an elastic body connected to a surface of the substrate and formed within the first groove, so as to be spaced apart from the inner surface of the first groove, a movable unit connected to the elastic body and formed within the second groove, so as to be spaced apart from the inner surface of the second groove, a micromirror connected to the movable unit and formed within the third groove, so as to be spaced apart from the inner surface of the third groove, input and output optical fibers formed on each side of the micromirror within the third groove and inputting and outputting light rays depending upon a displacement of the micromirror, and a coil formed on the movable unit having the elastic body formed thereon and moving the movable unit and the micromirror in a vertical direction depending upon external electrical signals, so as to control an intensity of light from the output optical fiber. <IMAGE></p> |
