Stressed liquid-crystal optical phased array for fast tip-tilt wavefront correction

2005 ◽  
Vol 44 (36) ◽  
pp. 7754 ◽  
Author(s):  
Bin Wang ◽  
Guoqiang Zhang ◽  
Anatoliy Glushchenko ◽  
John L. West ◽  
Philip J. Bos ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Phased Array ◽  
Wavefront Correction ◽  
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

Study on Characteristics of a Novel Optical Phased Array based on Liquid Crystal

2014 ◽  
Vol 43 (2) ◽  
pp. 223002
Author(s):  
戴竞 DAI Jing ◽  
张敏明 ZHANG Min-ming ◽  
何岩 HE Yan ◽  
刘德明 LIU De-ming
Keyword(s):  
Liquid Crystal ◽  
Phased Array ◽  
Optical Phased Array

Research Progress on Beam Scanning Based on Liquid Crystal Optical Phased Array

2019 ◽  
Vol 56 (11) ◽  
pp. 110002
Author(s):  
胡婕 Jie Hu ◽  
杜升平 Shengping Du ◽  
郭弘扬 Hongyang Guo
Keyword(s):  
Liquid Crystal ◽  
Phased Array ◽  
Research Progress ◽  
Beam Scanning ◽  
Optical Phased Array

Beam Pointing Precision Control by Using a Liquid Crystal Optical Phased Array

2010 ◽  
Vol 437 ◽  
pp. 344-348 ◽  
Author(s):  
Li Ying Wu ◽  
Jian Zhang ◽  
Yun Fang
Keyword(s):  
Liquid Crystal ◽  
Phased Array ◽  
Beam Steering ◽  
Incident Beam ◽  
Electric System ◽  
New Device ◽  
Energy Consuming ◽  
Extraordinary Refractive Index ◽  
Optical Phased Array ◽  
Pointing Precision

For laser beam steering, a pure optical-electric system without mechanical or inertial parts is used. The new device is a Liquid Crystal Optical Phased Array (LCOPA). Supplying electric field to liquid crystal cell with electrodes, the extraordinary refractive index changes, which results in phase shift that modulates the direction of incident beam. The advantages of this device are small size, less energy consuming, programmable and addressable control. A one dimensional device is designed and tested. The resolution of the steering angle is 20 μrad, the range is ±2o. The effect of flyback region and phase valley on diffraction efficiency is also discussed briefly.

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