Infrared and Laser Engineering, Volume. 50, Issue 7, 20210013(2021)
Optimal design of silicon-based optical phased array sector antenna
Figures & Tables(10)
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
Table 1. Influence of number of grating teeth on diffraction efficiency
View tableView in ArticleTable 1. Influence of number of grating teeth on diffraction efficiency
Number of grating teeth 3 4 5 Upward diffraction 57.2% 69.4% 71.6% Downward diffraction 9.6% 8.1% 8% Back reflection 6.2% 6.1% 5.8% Total incident energy 94% 93.7% 92.1%
Table 2. Influence of the position of the silicon ribbon on the diffraction efficiency of the antenna
View tableView in ArticleTable 2. Influence of the position of the silicon ribbon on the diffraction efficiency of the antenna
Silicon ribbon position Don't insert Among 1, 2 teeth Among 1, 2, 3 teeth Among 1, 2, 3, 4 teeth Upward diffraction 68.2% 78.8% 77.8% 75.1% Downward diffraction 5.8% 4.1% 5.2% 4.6% Back reflection 6.2% 1.5% 1.23% 1% Total incident energy 91.3% 95.2% 95.7% 95.9%
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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
Paper Information
Category: Optical design
Received: Dec. 30, 2020
Accepted: --
Published Online: Aug. 23, 2021
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