【摘要】 结合光子晶体非线性效应和线性干涉效应设计了一种全光半加器。将光源平均分成两部分，对半加器的与门和异或门分开设计。利用非线性效应实现高对比度的与门；利用线性干涉效应实现异或逻辑，从而使器件整体响应速度更快。在这种设计结构下，器件对信号光源功率只有阈值要求，当信号功率大于51.4 mW/μm~2时输出稳定，抗干扰能力强。所设计的半加器进位输出端口对比度为20.69 dB，输出端口对比度为20.13 dB。数据传输速率为0.75 Tbits/s,占用面积623μm~2。更多还原

【Abstract】 An all-optical half-adder is designed by combining the nonlinear effect and linear interference effect of photonic crystals. By dividing the light source into two parts equally, the half adder AND gate and XOR gate are designed separately. The nonlinear effect is used to realize the AND gate with high contrast,and the linear interference effect is used to realize the XOR logic, so that the overall response speed of the device is improved. In this design structure, the device only has threshold requirements for the signal light source power. When the signal power is greater than 51.4 mW/μm~2, it has stable output and strong anti-interference ability. The designed contrast of the half adder carry output port is 20.69 dB, and the output port contrast is 20.13 dB. The data transfer rate is 0.75 Tbits/s and the occupied area is 623 μm~2.更多还原