Song GUO, Shuo YUAN, Yishu CHEN, Hongwen XUAN, Jijun FENG. Research on silicon dioxide planar waveguide integrated optical switch devices[J]. Optical Instruments, 2024, 46(2): 69
- Optical Instruments
- Vol. 46, Issue 2, 69 (2024)
Fig. 1. Symmetrical 2×2 structure of multimode interference coupler optical switch
Fig. 2. Schematic diagram of multimode interference coupler of plane light waveguide light switch
Fig. 3. Optical field propagation after finite-difference time-domain optimization
Fig. 4. Distance between metal titanium and waveguide and transmission efficiency
Fig. 5. Picture of planar waveguide optical switch and electrode microscope
Fig. 6. Flow diagram of the performance characterization
Fig. 7. Transmission spectrum of cross and bar of planar waveguide optical switch
Fig. 8. Variation of phase modulated light intensity with voltage
Fig. 9. Schematic diagram of the phase modulation response time test circuit
Fig. 10. Response time of the optical switch
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Table 1. Parameters of coupler
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