Fig. 1. Schematic diagram of optical electric field sensor system

Fig. 2. Structure diagram of LiNbO₃ probe

Fig. 3. Variation of initial phase difference with temperature

Fig. 4. Dual-crystl structure

Fig. 5. Variation of initial phase difference with temperature

Fig. 6. Experiment configuration

Fig. 7. Experimental hardware connection

Fig. 8. Comparison of relative optical power of two probes