Fig. 1. Transmission as a function of the initial relative phase δ0 and power ratio B2.

Fig. 2. Experimental setup for demonstrating the light intensity modulation. The period of PPMgLN is 21.1 μm with the length of 40 mm. A uniform electric field is applied along the y-axis of the PPMgLN.

Fig. 3. Normalized emergent optical power of (a) the EW, and (b) the OW as a function of the incident optical power ratio. (c) and (d) are the emergent power ratios of the EW and OW as a function of the incident optical power ratio, respectively. I1 is the incident optical intensity of the OW, and I2 is the incident optical intensity of the EW.

Fig. 4. Results of comparing the experiments. (a) The variation of the emergent EW by changing the incident OW power when the incident light is OW only. (b) The variation of the emergent OW by changing the incident EW power when the incident light is EW only.

Fig. 5. Theoretical simulations for the relationship between transmission and incident light power ratio. (a) The variation of emergent EW power when varying the incident light power ratio by changing the incident OW power. (b) The variation of emergent OW power when varying the incident light power ratio by changing the incident EW power. (c) The emergent power ratio of EW changed by the incident power ratio. (d) The emergent power ratio of OW changed by the incident power ratio.