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Proceedings Paper

Mode conversion based on the acousto-optical interaction in photonic-phononic waveguide
Author(s): Guodong Chen; Ruiwen Zhang; Xiong Huang; Heng Xie; Ya Gao; Danqi Feng; Junqiang Sun
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Paper Abstract

We present a scheme for on-chip optical mode conversion in a hybrid photonic-phononic waveguide. Both propagating optical and acoustic wave can be tightly confined in the hybrid waveguide, and the acoustooptical interaction can be enhanced to realize optical mode conversion within a chip-scale size. The theoretical model of the acousto-optic interaction is established to explain the mode conversion. The numerical simulation results indicate that the high efficient mode conversion can be achieved by adjusting the intensity of the acoustic wave. We also show that the mode conversion bandwidth can be dramatically broadened to 13 THz by adjusting the frequency of the acoustic wave to match phase condition of the acousto-optic interaction. This mode converter on-chip is promising in order to increase the capacity of silicon data busses for on-chip optical interconnections.

Paper Details

Date Published: 27 February 2015
PDF: 6 pages
Proc. SPIE 9367, Silicon Photonics X, 936712 (27 February 2015); doi: 10.1117/12.2076505
Show Author Affiliations
Guodong Chen, Huazhong Univ. of Science and Technology (China)
Ruiwen Zhang, Huazhong Univ. of Science and Technology (China)
Xiong Huang, Huazhong Univ. of Science and Technology (China)
Heng Xie, Huazhong Univ. of Science and Technology (China)
Ya Gao, Huazhong Univ. of Science and Technology (China)
Danqi Feng, Huazhong Univ. of Science and Technology (China)
Junqiang Sun, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 9367:
Silicon Photonics X
Graham T. Reed; Michael R. Watts, Editor(s)

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