Phase-Only Optically Addressable Spatial-Light Modulator and On-Line Phase-Modulation Detection System

The influence of driving conditions on the phase-modulation ability of an optically addressable spatial-light modulator (OASLM) is investigated using an equivalent circuit method and a system for measuring wave-front modulation that uses a phase-unwrapping data-processing method, and is constructed with a charge-coupled device and wave-front sensor. 1λ peak-to-valley phase change for a 1053 nm laser beam is acquired with the home-made OASLM at the optimal driving voltage of 14 V at 200 Hz. The detection system for wave-front modulation has a spatial resolution of 200 μm for binary images and a minimum distinguishable contrast of 1 mm. On-line phase modulation with feedback control can be acquired with the OASLM and the corresponding measuring system.

[1]  Jeffrey A. Davis,et al.  Interferometric phase measurements for polarization eigenvectors in twisted nematic liquid crystal spatial light modulators , 2000 .

[2]  M. Karpierz,et al.  Modeling of molecular reorientation and beam propagation in chiral and non-chiral nematic liquid crystals. , 2012, Optics express.

[3]  E. Brasselet,et al.  Multiple-Star System Adaptive Vortex Coronagraphy Using a Liquid Crystal Light Valve. , 2017, Physical review letters.

[4]  Optical spatial phase retarder/modulator by a rotating freely suspended LC film , 2016 .

[5]  Young-tea Chun,et al.  A high-resolution optically addressed spatial light modulator based on ZnO nanoparticles , 2015, Light: Science & Applications.

[6]  Alyssa N. Brigeman,et al.  Normally transparent smart window based on electrically induced instability in dielectrically negative cholesteric liquid crystal , 2018 .

[7]  Shengjiang Chang,et al.  Characteristics of a liquid-crystal-filled composite lattice terahertz bandgap fiber , 2018, Optics Communications.

[8]  J. M. López-Téllez,et al.  Characterization of optical polarization properties for liquid crystal-based retarders. , 2016, Applied optics.

[9]  Li Xuan,et al.  Investigation of optical testing with a phase-only liquid crystal spatial light modulator. , 2005, Optics express.

[10]  Wavefront control of laser beam using optically addressed liquid crystal modulator , 2018, High Power Laser Science and Engineering.

[12]  R. E. Aldrich,et al.  Electrical and Optical Properties of Bi12SiO20 , 1971 .

[13]  Zunqi Lin,et al.  Performance of an optically addressed liquid crystal light valve and its application in optics damage protection , 2013 .

[14]  Jian Zhang,et al.  Evaluation of phase-only liquid crystal spatial light modulator for phase modulation performance using a Twyman–Green interferometer , 2007 .

[15]  J. Huignard,et al.  Liquid crystal light valve using bulk monocrystalline Bi22SiO20as the photoconductive material , 1982, IEEE Journal of Quantum Electronics.

[16]  J. M. López-Téllez,et al.  Stokes polarimetry using analysis of the nonlinear voltage-retardance relationship for liquid-crystal variable retarders. , 2014, The Review of scientific instruments.

[17]  Stefania Residori,et al.  Phase modulation detection with liquid crystal devices , 2015, Photonics West - Optoelectronic Materials and Devices.

[18]  J. P. Huignard.  Spatial Light Modulators And Their Applications , 1987, Other Conferences.

[19]  B. Saleh,et al.  Complex amplitude reflectance of the liquid crystal light valve. , 1991, Applied optics.

[20]  Neil C. Bruce,et al.  Experimental method to characterize the retardance function of optical variable retarders , 2015 .