TY - JOUR
AU - Xuan, Li
AB - As a wavefront corrector, the phase-only liquid crystal spatial light modulator has been widely using in adaptive optics systems. However, the unmodulated diffracted beam of the modulator will affect the light spot centroid detection accuracy of a Shack–Hartmann wavefront sensor and decrease the image quality after correction. In this paper, we have diminished the effect by introducing a modified weight algorithm in our closed-loop adaptive optics system. The Strehl ratio of the image is higher than 0.8 after correction, even when the wavefront aberration is larger  than 3 μm. The correction precision and image quality are both improved significantly. 
TI - Analysis of the unmodulated diffraction beam of the phase-only liquid crystal spatial light modulator and a method for reducing its influence
JF - Journal of Optics
DO - 10.1088/2040-8978/14/10/105705
DA - 2012-10-01
UR - https://www.deepdyve.com/lp/iop-publishing/analysis-of-the-unmodulated-diffraction-beam-of-the-phase-only-liquid-G7C5DIzxTb
SP - 105705
VL - 14
IS - 10
DP - DeepDyve
ER -