Yaoyuan Zhang, Rui Wang, Ruitao Jiang, Kunyang Du, Yuanyang Li. Optimal design of silicon-based optical phased array sector antenna[J]. Infrared and Laser Engineering, 2021, 50(7): 20210013
- Infrared and Laser Engineering
- Vol. 50, Issue 7, 20210013 (2021)
Fig. 1. Schematic diagram of grating energy propagation
Fig. 2. Schematic diagram of waveguide structure. (a) Waveguide structure; (b) Waveguide core antenna structure
Fig. 3. Effect of different orders of shallow etching on diffraction efficiency. (a) Upward diffraction; (b) Downward diffraction; (c) Back reflection; (d) Total incidence
Fig. 4. Light field energy propagation process
Fig. 5. Design scheme to reduce antenna size
Fig. 5. [in Chinese]
Fig. 6. High diffraction efficiency design structure
Fig. 7. Antenna far field and energy distribution
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Table 1. Influence of number of grating teeth on diffraction efficiency
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Table 2. Influence of the position of the silicon ribbon on the diffraction efficiency of the antenna
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