FDTD simulation of photonic devices and circuits based on circular and fan-shaped microdisks

被引:35
作者
Sakai, A [1 ]
Baba, T [1 ]
机构
[1] Yokohama Natl Univ, Div Elect & Comp Engn, Baba Lab, Yokohama, Kanagawa 2408501, Japan
关键词
evanescent field; finite difference time domain (FDTD); microdisk laser; photonic circuit; whispering gallery mode;
D O I
10.1109/50.779175
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper proposes novel photonic devices and circuits composed of circular and fan-shaped microdisks. Using the finite difference time domain (FDTD) method, we investigated propagation characteristics of light in fundamental elements, the coupler of closely placed disks and the butt-joint of disks, The coupler can be used for extracting the light from a disk laser. It was shown that the efficiency of the light extraction can be over 70% by the coupler. A mode size converter and a tunable filter combined with couplers were numerically demonstrated. The joint can be applied to a compact and sophisticate optical wiring in a large scale circuit, since the joint loss estimated was as low as 0.1 dB.
引用
收藏
页码:1493 / 1499
页数:7
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