| 摘要 |
<p>An apparatus and method is disclosed for providing at least one phase-modulated output from at least one amplitude-modulated input, which is used to produce logical AND and OR functions having phase-modulated outputs. A constant level bias beam set (5) of at least one wavelength of any wave-type energy is superimposed on at least one modulated input beam set (3, 4) having an energy sum out of phase with the bias beam set at at least one location (7). Energy in the resulting interference image (8) is separated from said at least one location to produce at least one output (9). Input levels determine the function performed. When the input energy sum is greater than the bias beam set, the output changes phase. When they are equal, the output is zero, which is also used to produce the NAND function.</p> |
