Title :
Ultracompact 2×2 directional coupling optical switch with Si waveguides and phase-change material
Author :
Tanaka, Daiki ; Ikuma, Yuichiro ; Tsuda, Hiroyuki ; Kawashima, Hitoshi ; Kuwahara, Masashi ; Xiaomin Wang
Author_Institution :
Grad. Sch. of Sci. & Technol., Keio Univ., Yokohama, Japan
Abstract :
We reported an ultracompact 2×2 directional coupling optical switch with Si waveguides and phase-change material. Switching operation was successfully demonstrated by 3-D FDTD method. The loss of 0.5 dB and the crosstalk of -20.5 dB were achieved for the cross-state. The loss of 3.0 dB and the crosstalk of -7.8 dB were achieved for the bar-state.
Keywords :
elemental semiconductors; finite difference time-domain analysis; optical crosstalk; optical design techniques; optical directional couplers; optical switches; optical waveguides; phase change materials; silicon; 3D FDTD method; Si; finite difference time-domain method; loss 0.5 dB; loss 3.0 dB; optical crosstalk; phase change material; Couplings; Crosstalk; Optical films; Optical switches; Optical waveguides; Silicon; optical circuit; optical switch; optical waveguide; phase-change material;
Conference_Titel :
Photonics in Switching (PS), 2012 International Conference on
Conference_Location :
Ajaccio
