| 摘要 |
PURPOSE:To obtain the function of shaping a light pulse wave form, of a light logical gate, and of a light memory by a method wherein a laser input light is non-linearly amplified by utilizing the S-shaped laser input power to laser output light power characteristic of a semiconductor laser. CONSTITUTION:If the laser input light S1 has a power waveform which exceeds the point at which the laser input light power takes the maximum value on the curve for the S-shaped laser input power to laser output light power characteristic, the input light S1 can be non-linearly amplified in the form of shaping to a light pulse wave form. If there are two laser input lights S1, and the sum of the powers of the two input lights have the value which exceeds the point at which the laser input light power takes the maximum value on the curve for the input light power to output light power characteristic, the laser input light S1 can be non-linearly amplified in the form of the logical gate. Further, when those of two input lights are selectively injected to an active layer 2 in the state that a bias light having the power of a medium value is injected to the active layer 2 of the semiconductor laser 1, the input light Si can be memorized by non-linear amplification in the form that the light input light taking positive and negative polarity powers corresponding to 1 and 0 in terms of binary values respectively. |
