scholarly journals Optical phased array neural probes for beam-steering in brain tissue

2021 ◽  
Author(s):  
Wesley Sacher ◽  
Fu-Der Chen ◽  
Homeira Moradi-Chameh ◽  
Xinyu Liu ◽  
Ilan Felts Almog ◽  
...  
Keyword(s):  
Brain Tissue ◽  
Phased Array ◽  
Beam Steering ◽  
Neural Probes ◽  
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.

Liquid-cladded optical phased array for a single-wavelength beam steering

2021 ◽  
Vol 46 (19) ◽  
pp. 4948
Author(s):  
Binghui Li ◽  
Caiming Sun ◽  
Hongjie Wang ◽  
Zhenmin Chen ◽  
Xiaomin Nie ◽  
...  
Keyword(s):  
Phased Array ◽  
Beam Steering ◽  
Optical Phased Array
Sign in / Sign up

Export Citation Format

Share Document