摘要
利用高阶Pade近似的2D-BPM算法,对具有不同弯曲半径及交叉角度的SOI弯曲交叉波导的传输特性进行了模拟、分析和深入研究,发现交叉波导的串扰随弯曲半径及交叉角度增大而减小的规律.在此基础上,对由正弦弯曲、余弦弯曲以及圆弧弯曲三种弯曲波导构成的SOI交叉波导的损耗及串扰特性进行了分析比较.结果表明,由正弦弯曲构成的交叉波导传输损耗最小且串扰最小.
By means of two dimension beam propagation method （2D-BPM） with high order Pade approximation, behaviors of SOI waveguide based bend intersections with variant bending radius are simulated and analized. The result shows that crosstalk of intersections decreases with the increase of bending radius and intersecting angle. Furthermore, loss and crosstalk characteristics of bend intersections formed by sine bend, cosine bend and arc bend are compared. Sine bend based structures are proved that it can present lowest loss and smallest crosstalk properties among the three and may find their wide application in the design of bend intersections and other more complicated photonic devices and circuits.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2006年第11期1649-1653,共5页
Acta Photonica Sinica
基金
Supported by National Natural Science Foundation of China under Grant No 60336010,the Special Funds for Major State Basic Research Project of China under Grant No G20000366,and the National High Technology Programme of China under Grant No 2002AA312060
关键词
导波光学
SOI
交叉波导
弯曲波导
Guided wave optics
Silicon-on insulator （SOI）
Intersecting waveguide
Waveguide bend
