Fuhao Li, Jiguang Zhao, Xiaoping Du, Jianwei Zhang, Yongsheng Duan, Pan Chen. Research status and trend analysis of beam deflection technology based on space laser communication[J]. Infrared and Laser Engineering, 2023, 52(10): 20230004
- Infrared and Laser Engineering
- Vol. 52, Issue 10, 20230004 (2023)
Fig. 1. Diagram of scanning galvanometer
Fig. 2. Structural diagram of the X-Y axis frame of the fast control mirror
Fig. 3. Flexible axis structure diagram of fast control mirror
Fig. 4. Advanced fast steering mirror
Fig. 5. Drive structure diagram of MEMS deformable mirror
Fig. 6. MEMS with sidewall electrodes
Fig. 7. Schematic of electrostatic driven torsion micromirror
Fig. 8. Distribution of 140-element deformable mirror drivers
Fig. 9. Schematic diagram of acousto-optic deflection
Fig. 10. Structure diagram of double crystal deflector
Fig. 11. Structure diagram of acoustooptic deflector for liquid heat dissipation function (1-Tellurium dioxide crystal; 2-Brass shell; 3-Liquid contact）
Fig. 12. Antistatic design of high frequency acoustooptic deflector
Fig. 13. Schematic diagram of liquid crystal phased array deflection
Fig. 14. 400 GW/cm2 light resistance SLM
Fig. 15. A space light modulator using low pressure liquid crystal driving material
Fig. 16. Schematic of liquid crystal microlens array
Fig. 17. Micrograph of microlens array
Fig. 18. Scanning spot realized by microlens array technique with optimized Kepler structure
Fig. 19. Structure diagram of double layer liquid crystal lens with composite dielectric layer
Fig. 20. Schematic of a continuous addressing scan
Fig. 21. Schematic of liquid crystal polarization grating
Fig. 22. Large angle beam scan rendering
Fig. 23. Schematic diagram of electro-optic deflection
Fig. 24. Multipass scheme for KTN crystal deflector
Fig. 25. Double thermistor temperature control structure
Fig. 26. Schematic diagram of a KTN crystal beam deflector with nanosecond response rate
Fig. 27. Structure diagram of electric field distribution verified by beam deflection
Fig. 28. Schematic diagram of electron and hole injection. (a) Schematic diagram of the deflection of the UV-irradiated KTN beam; (b) Energy band diagram along the X -axis
Fig. 29. Curie temperature profiles of KTN crystals at 0 mm, 5 mm, and 10 mm along the Z -axis
Fig. 30. Schematic of KTN crystalloelectronic beam deflection doped with copper ions
Fig. 31. Schematic diagram of electro-optic deflection mode based on lithium niobate waveguide
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Table 1. Comparison of beam deflection techniques
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