【摘要】 本文介绍了基于聚合物分散液晶材料及全息电控光栅元件的形成机理。提出了基于全息PDLC技术的可调光衰减器的设计,利用H-PDLC光栅制作了衰减器实验样品。H-PDLC光衰减器样品在1550nm的光通信波段测试结果表明,在输入光源为1550nm、223μW情况下,光衰减器的插入损耗为2.3 dB,衰减调节范围为12dB。更多还原

【Abstract】 In this paper,a new variable optical attenuator made of holographic polymer dispersed liquid crystal element is reported.The characteristics of PDLC samples from different recipes and the electrical-optical characteristic on the wavelength of 1550 nm were studied.The suitable recipe was selected;the PDLC variable optical attenuator samples were made;the characteristics of the samples were tested in the optical communication working band of 1550nm.The test result shows that for the input power of 223 μW,on the wavelength of 1550 nm,the insertion loss is about 2.3 dB and the variable range of VOA is about 12 dB.更多还原