A compact photonic horizontal spot-size converter realized in silicon-on-insulator

被引:28
作者
Luyssaert, B [1 ]
Vandersteegen, P
Taillaert, D
Dumon, P
Bogaerts, W
Bienstman, P
Van Thourhout, D
Wiaux, V
Beckx, S
Baets, R
机构
[1] State Univ Ghent, IMEC, Dept Informat Technol, INTEC,Photon Res Grp, B-9000 Ghent, Belgium
[2] IMEC VZW, Silicon Proc Technol Div, B-3001 Louvain, Belgium
关键词
compact coupler; high index contrast; nonadiabatic taper; optical coupler;
D O I
10.1109/LPT.2004.838655
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
We present a compact planar coupler connecting two optical waveguides with highly different widths. The coupler consists of various nonperiodic waveguide sections, whose dimensions are determined using a genetic optimization algorithm. Efficiencies that exceed those of the more conventional designs with similar lengths, like gradual linear tapers, were obtained in silicon-on-insulator using 248-nm-deep ultraviolet lithography.
引用
收藏
页码:73 / 75
页数:3
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