Fig. 1. Configuration of optical phased array antenna
Fig. 2. Comparison of far-field patterns for varying the amount of randomness
Fig. 4. Comparison of searching space between exhaustive search and hill-climbing algorithms
Fig. 3. Comparison of the size of searching space for varying the number of applicable phase levels per channel
Fig. 5. Flow chart of our proposed phase calibration algorithm
Fig. 6. Comparison of far-field patterns with/without phase calibration for various objective functions
Fig. 7. Comparison of calibrated phases
Fig. 8. Comparison of far-field beam patterns
Table 1. Types of objective functions
Table 2. Simulation parameters and values
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