Lasing dynamics of a silicon photonic crystal microcavity

被引:16
作者
Shi, Shouyuan [1 ]
Prather, Dennis W. [1 ]
机构
[1] Univ Delaware, Dept Elect & Comp Engn, Newark, DE 19716 USA
来源
OPTICS EXPRESS | 2007年 / 15卷 / 16期
关键词
D O I
10.1364/OE.15.010294
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In this paper we propose a novel silicon microcavity design based on the dispersion engineered photonic crystals (PhCs). With the unique self-collimation property of PhCs, we optimize the passive cavity by tuning the design parameters, such as coupling gap size and array size, to achieve higher Q factor and drop efficiency. Highest cavity mode below the band edge is of particular interest. The strong mode confinement in the low index active material offers an opportunity to realize a lasing mechanism. To investigate the lasing dynamics we introduce the rate equations of atomic system into the electromagnetic polarization to fully describe the nonlinearity of active medium. With these auxiliary differential equations we solve the time evolutions of the electromagnetic waves and atomic populations by using the FDTD method. (c) 2007 Optical Society of America.
引用
收藏
页码:10294 / 10302
页数:9
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