| abstract |
A semiconductor device that can be miniaturized and integrated, and whose nonlinear refractive index change responds to control light at high speed, causes phase modulation of light according to light intensity, and uses interference at that time An optical gate switch circuit is provided. An optical gate switch circuit has a structure in which an optical bandpass filter is connected to an output side of an asymmetric Mach-Zehnder interferometer. [Selection] Figure 5 |