Wavefront correction utilizing the liquid crystal spatial light modulator in adaptive optics

2005 ◽  
Author(s):  
Xin Yu ◽  
Zhihua Wang ◽  
Xiaofang Zhang ◽  
Jixiang Yan
Keyword(s):  
Liquid Crystal ◽  
Adaptive Optics ◽  
Spatial Light Modulator ◽  
Light Modulator ◽  
Wavefront Correction

scholarly journals Phase-only liquid crystal spatial light modulator for wavefront correction with high precision

2004 ◽  
Vol 12 (26) ◽  
pp. 6403 ◽  
Author(s):  
Lifa Hu ◽  
Li Xuan ◽  
Yongjun Liu ◽  
Zhaoliang Cao ◽  
Dayu Li ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
High Precision ◽  
Spatial Light Modulator ◽  
Light Modulator ◽  
Wavefront Correction

scholarly journals Three-dimensional adaptive optics ultrahigh-resolution optical coherence tomography using a liquid crystal spatial light modulator

2005 ◽  
Vol 45 (28) ◽  
pp. 3432-3444 ◽  
Author(s):  
Enrique J. Fernández ◽  
Boris Považay ◽  
Boris Hermann ◽  
Angelika Unterhuber ◽  
Harald Sattmann ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Liquid Crystal ◽  
Adaptive Optics ◽  
Spatial Light Modulator ◽  
Three Dimensional ◽  
Optical Coherence ◽  
Light Modulator ◽  
Ultrahigh Resolution

High-Resolution Correction of Arbitrary Wavefront Aberration Using Liquid Crystal Spatial Light Modulator

2011 ◽  
Vol 121-126 ◽  
pp. 877-881
Author(s):  
Hong Xin Zhang ◽  
Xiao Xi Xu
Keyword(s):  
Liquid Crystal ◽  
High Resolution ◽  
Spatial Light Modulator ◽  
Low Cost ◽  
Phase Conjugation ◽  
Astronomical Observation ◽  
Wavefront Aberration ◽  
Strehl Ratio ◽  
Light Modulator ◽  
Wavefront Correction

Wavefront correction plays significant role in some fields like astronomical observation, laser processing and medical imaging, etc. Liquid crystal spatial light modulator ( LC SLM) is an ideal device for high-resolution wavefront correction because of its low cost, low consumption, large number of pixels and independent programming control of each unit. It is researched experimentally that LC SLM is used as a wavefront correction device and corrects arbitrary wavefront aberration. Wavefront correction is performed based on phase conjugation and periodic phase modulation with modulo-2π. The experimental results show that the PV value of the irregular wavefront aberration is 1.56λ, RMS value is 0.25 and Strehl ratio is 0.08 before correction, but the PV value of the residual aberration is reduced to 0.26λ, RMS value is 0.02 and Strehl ratio is increased to 0.97 which is approximated diffraction limit after correction. It is proved to be feasible and effective that LC SLM is used to the high-precision and high-resolution wavefront correction.

scholarly journals Closed-loop adaptive optics system with a single liquid crystal spatial light modulator

2014 ◽  
Vol 22 (14) ◽  
pp. 17216 ◽  
Author(s):  
Kainan Yao ◽  
Jianli Wang ◽  
Xinyue Liu ◽  
Wei Liu
Keyword(s):  
Liquid Crystal ◽  
Adaptive Optics ◽  
Spatial Light Modulator ◽  
Closed Loop ◽  
Light Modulator ◽  
Adaptive Optics System
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