Logic output light source based on plasma waveguides

The invention discloses a logic output light source based on a plasma waveguides. The logic output light source is characterized in that the logic output light source mainly comprises a metal film andfurther comprises the rectangular waveguides and rectangular resonance cavities on the metal film; the waveguides are composed of the incident waveguide, the intermediate waveguide and the emergent waveguides; one end of the intermediate waveguide is connected with the incident waveguide, and the other end of the intermediate waveguide is connected with the emergent waveguides; one end of the incident waveguide extends to one side of the metal film to form an incident port of light, and the other ends of the emergent waveguides extend to the other side of the metal film to form emergent portsof light; and when an output signal source outputs two kinds of signals, one resonance cavity is arranged, when the output signal source outputs three kinds of signals, one emergent waveguide is additionally arranged, and mea