Fangfang Shen, Xinxin Su, Sicheng Yang, Zhenlin Wu, Mingshan Zhao, Xiuyou Han. Design of Time Delay Network for Optical Beamforming Based on Anti-Resonant Waveguide Micro-Rings[J]. Acta Optica Sinica, 2019, 39(2): 0213001
- Acta Optica Sinica
- Vol. 39, Issue 2, 0213001 (2019)
Fig. 1. Bandwidths for different time delay schemes. (a) Delay on two sidebands and optical carrier; (b) delay on one sideband and optical carrier; (c) delay on only one sideband
Fig. 2. Structural diagram of optical time delay network
Fig. 3. Structure of antenna array. (a) Structure of one-dimensional linear array; (b) time delay network the fourth element linear array
Fig. 4. Intensity response of waveguide micro-rings with different loss coefficients at κ=0.3
Fig. 5. Simulated time delay curve for each path of micro-ring with the maximum scan angle (+30°). (a) Simulated time delay response curves of each path for time delay network; (b) enlarged map of time delay response at anti-resonance
Fig. 6. Structural diagram of micro-ring assisted MZI bandpass filter
Fig. 7. Intensity response curves of bandpass filter
Fig. 8. Target delay time versus loss under different propagation losses of waveguide
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Table 1. Coupling coefficients of micro-rings in time delay network at the maximum scanning angle
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Table 2. Time delay deviation value under different coupling coefficient deviations
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Table 3. Gain and noise coefficients of system link under different cycle loss factors
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