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提出了一种新型的液晶光开关器件,它采用全息技术,由向列相液晶和高分子预聚物充分混合,在一定条件下发生定域光聚合反应形成,理论和实验表明,采用一定的材料配方和工艺,才能获得理想的光开关器件。此种器件具有显著的电控开关特性,由于液晶材料的介入,使得器件的折射率调制度可以通过外加电场进行改变,从而其输出光也会随着电场的改变而改变,当电场大于10V时,出射光只有入射光的5%。同时,由于液晶具有大的电光系数、快的响应速度等优点,使得液晶光开关器件在光通信技术中的有非常好的应用前景。
A new type of liquid crystal optical switch device is proposed. It adopts holographic technology and is composed of nematic liquid crystal and polymer prepolymer, and under certain conditions, localized photopolymerization reaction takes place. The theory and experiment show that a certain amount of Material formulations and processes, in order to obtain the ideal optical switching device. Such devices have significant electrical switching characteristics, due to the liquid crystal material involved, making the refractive index modulation of the device can be changed by the applied electric field, so that the output light will change with the electric field changes, when the electric field is greater than 10V , The outgoing light is only 5% of the incident light. At the same time, liquid crystal optical switching devices have very good application prospect in optical communication technology due to the advantages of large electro-optic coefficient and fast response speed.