摘要
对Y分岔K^+离子交换沟道波导热光控制作用的工作机构进行了理论分析。计算结果表明,只有在Ti薄膜热子下面的区域形成了独立的热光波导,才可能解释实验测得的高消光比值。在器件的制作过程中采用了特殊的SiO_2抬离工艺,
Operation principles of Y-branch K+ ion exchanged waveguide thermo-optical control have been theoretically analyzed. The resultes of the theoretical calculations show that the observed high extinction rate can not be obtained unless an independent thermo-induced waveguide is formed in the area under a Ti-fila heater. Fabrication technologies, including a special SiO2 lift-off technique, are presented here.
出处
《光学学报》
EI
CAS
CSCD
北大核心
1991年第10期916-920,共5页
Acta Optica Sinica
关键词
Y分岔
波导
热光控制
热光效应
thermo-optical effect, thermo-induced waveguide.
