Improving the performance of optical antenna for optical phased arrays through high-contrast grating structure on SOI substrate
2019
A novel optical antenna for optical
phased arraysis proposed and simulated. A high-contrast grating structure is used to achieve extremely efficient emission. The emission efficiency is as high as 93.94% at 1.55 μm, which exceeds 50% in a range of wavelength from 1.48 μm to 1.62 μm. The antenna can achieve a perfect grating lobe suppression with background suppression of 28.4 dB when the phase difference between adjacent waveguides is 0. A 16-wire optical
phased arraycan easily achieve a scan range of ± 22.8° × 20.2° with a beam width of 2.4° × 2.5°, by employing the optical antenna proposed.
Keywords:
-
Correction
-
Source
-
Cite
-
Save
27
References
12
Citations
NaN
KQI