摘要
提出一种基于内反射原理的可变光学衰减器 ,这种利用一加长的棱镜和涂于棱镜上下两底面的SiO2 薄膜的简单结构 。
A variable optical attenuator (VOA) based on the internal reflection effect is proposed. This simple configuration makes use of an enlongated prism with SiO 2 thin film on both underside of it to realize polarization insensitivity and large range of dynamic attenuation. As a result, a sample VOA was obtained with an attenuation range above 20 dB and polarization dependent loss below 0.5 dB experimentally.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2003年第7期870-873,共4页
Acta Optica Sinica
基金
上海市科学技术委员会资助项目 (0 1 2 2 62 0 2 1 )
