Fig. 1. Characteristics of nonlinear ring cavity and its output at each port in the 1.42−1.52 μm band. (a) Structure and (b) normalized power of output port

Fig. 2. Steady-state electric field diagrams and normalized powers of output ports when incident light source has different powers. (a) Electric field diagram at low power, (b) electric field diagram at high power, (c) output power at low power, and (d) output power at high power

Fig. 3. XOR gate structure

Fig. 4. Steady-state electric field diagrams and normalized power curves when input logic is '01', '10' and '11' respectively. (a)−(c) are electric field diagrams when input logic is (a) '01', (b) '10', and (c) '11'; (d)−(f) are normalized power curves when input logic is (d) '01', (e) '10', and (f) '11'

Fig. 5. Two-input AND gate structure

Fig. 6. Steady-state electric field diagrams and normalized output powers when input logic is ‘01’、 ‘11’. (a)−(b) are electric field diagrams when input logic is (a) '01' and (b) '11'; (c)−(d) are normalized output curves when input logic is (c) '01' and (d) '11'

Fig. 7. NOR gate structure

Fig. 8. Steady-state electric field diagrams and normalized output powers when input is ‘00’、 ‘10’、and ‘11’. (a)−(c) are electric field diagrams when input logic is (a) '00', (b) '10', and (c) '11'; (d)−(f) are normalized output powers when input logic is (d) '00', (e) '10', and (f) '11'

Fig. 9. Four-input AND gate structure

Fig. 10. Steady-state electric field diagrams and normalized output powers when input is ‘1000’, ‘1100’, ‘1110’ and ‘1111’. (a)−(d) are electric field diagrams when input is (a) '1000', (b) '1100' , (c) '1110', and (d) '1111' . (e)−(f) are normalized output powers when input is (e) '1000', (f) '1100', (g) '1110', and (h) '1111'

Fig. 11. Influence of light source power on device logic function