A SiN-Si dual-layer optical phased array with high radiation efficiency and large steering range

2021 ◽  
Author(s):  
Guangzhen Luo ◽  
Pengfei Wang ◽  
Pengfei Ma ◽  
Jianbin Ma ◽  
Ruiting Wang ◽  
...  
Keyword(s):  
Phased Array ◽  
Radiation Efficiency ◽  
High Radiation ◽  
Optical Phased Array

An Optimized Scheme for Optical Phased Array Beam Steering Controlled by Wavelength

PIERS Online ◽  
2007 ◽  
Vol 3 (2) ◽  
pp. 127-131 ◽  
Author(s):  
Ying Zhao ◽  
Xiaozhou Yang ◽  
Qin Cai ◽  
Weiwei Hu
Keyword(s):  
Phased Array ◽  
Beam Steering ◽  
Optical Phased Array

scholarly journals A Design Approach of Optical Phased Array with Low Side Lobe Level and Wide Angle Steering Range

Photonics ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 63
Author(s):  
Xinyu He ◽  
Tao Dong ◽  
Jingwen He ◽  
Yue Xu
Keyword(s):  
Phased Array ◽  
Phase Distribution ◽  
Beam Steering ◽  
Side Lobe ◽  
Design Approach ◽  
Optical Antennas ◽  
Side Lobe Level ◽  
Wide Angle ◽  
Spacing Distribution ◽  
Optical Phased Array

In this paper, a new design approach of optical phased array (OPA) with low side lobe level (SLL) and wide angle steering range is proposed. This approach consists of two steps. Firstly, a nonuniform antenna array is designed by optimizing the antenna spacing distribution with particle swarm optimization (PSO). Secondly, on the basis of the optimized antenna spacing distribution, PSO is further used to optimize the phase distribution of the optical antennas when the beam steers for realizing lower SLL. Based on the approach we mentioned, we design a nonuniform OPA which has 1024 optical antennas to achieve the steering range of ±60°. When the beam steering angle is 0°, 20°, 30°, 45° and 60°, the SLL obtained by optimizing phase distribution is −21.35, −18.79, −17.91, −18.46 and −18.51 dB, respectively. This kind of OPA with low SLL and wide angle steering range has broad application prospects in laser communication and lidar system.

Hybrid Integrated Silicon NitridePolymer Optical Phased Array for Efficient Light Detection and Ranging

2021 ◽  
pp. 1-1
Author(s):  
Chul-Soon Im ◽  
Sung-Moon Kim ◽  
Kyeong-Pyo Lee ◽  
Seong-Hyeon Ju ◽  
Jung-Ho Hong ◽  
...  
Keyword(s):  
Phased Array ◽  
Light Detection And Ranging ◽  
Light Detection ◽  
Optical Phased Array

scholarly journals Grating lobes analysis based on blazed grating theory for liquid crystal optical-phased array

2013 ◽  
Vol 52 (9) ◽  
pp. 097102 ◽  
Author(s):  
Jian Chen ◽  
Guolong Cui ◽  
Lingjiang Kong ◽  
Feng Xiao ◽  
Xin Liu ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Phased Array ◽  
Blazed Grating ◽  
Optical Phased Array

19.1 Optical Phased-Array FMCW LiDAR with On-Chip Calibration

2021 ◽  
Author(s):  
SungWon Chung ◽  
Makoto Nakai ◽  
Samer Idres ◽  
Yongwei Ni ◽  
Hossein Hashemi
Keyword(s):  
Phased Array ◽  
Optical Phased Array ◽  
On Chip
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