Hybrid vertical directional coupling between a long range surface plasmon polariton waveguide and a dielectric waveguide

被引:15
作者
Park, Sung-Yun [1 ]
Kim, Jin Tae [1 ,2 ]
Shin, Jin-Soo [1 ]
Shin, Sang-Yung [1 ]
机构
[1] Korea Adv Inst Sci & Technol, Dept Elect Engn, Taejon 305701, South Korea
[2] Elect & Telecommun Res Inst, Taejon 305700, South Korea
关键词
Surface plasmon polariton waveguides; Dielectric waveguides; Coupling; MODES;
D O I
10.1016/j.optcom.2009.08.038
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
To investigate light coupling between a long range surface plasmon polariton (LRSPP) waveguide and a conventional integrated optical component, a hybrid vertical directional coupler consisting of a LRSPP waveguides and a dielectric waveguide is investigated and fabricated. In the proposed coupler the dielectric waveguide and LRSPP waveguide are vertically configured for dense integration and strong coupling. The characteristics of the even and odd super-modes of the coupler are also analyzed to design the device. The fabricated device exhibits damped sinusoidal behavior along the coupling length due to propagation loss of the LRSPP waveguide. The maximum power transfer of 86% from the LRSPP waveguide to the dielectric waveguide is achieved at the coupling length of 600 mu m. The measured characteristics of the device are in relatively good agreement with a theoretical analysis. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:4513 / 4517
页数:5
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