On-chip high-order mode converter and a 10-channel simultaneous polarization- and mode-division-multiplexer

Yujun Pan; Xiuli Bai; Hongchun Chen; Xuefeng Xu; Jing Liu

doi:10.1117/12.2585379

4 December 2020 On-chip high-order mode converter and a 10-channel simultaneous polarization- and mode-division-multiplexer

Yujun Pan, Xiuli Bai, Hongchun Chen, Xuefeng Xu, Jing Liu

Author Affiliations +

Proceedings Volume 11617, International Conference on Optoelectronic and Microelectronic Technology and Application; 116172S (2020) https://doi.org/10.1117/12.2585379
Event: International Conference on Optoelectronic and Microelectronic Technology and Application, 2020, Nanjing, China

Abstract

A high-order mode converter and multiplexer based on silicon waveguide is designed. According to the principle of mode coupling, the conversion between high-order modes in different polarization states can be realized, including TM01 toTE11 mode conversion and TE01 to TM11mode conversion. Using the FDTD method, we analyze in detail the influence of the waveguide width W on the mode refractive index N, as well as the influence of the waveguide width W, the gap G and the coupling length L between different waveguides on the polarization extinction ratio and insertion loss. The results show that the polarization extinction ratio of the designed mode converter is 23.17dB and 24.9dB, the loss is 0.27dB and 0.589dB, and the coupling length is 14µm and 9.7µm, respectively. Besides, we proposed a 10-channel simultaneous polarization and mode division multiplexing system by the cascade of 10 mode converters, which can further increase the communication capacity.

Citation Download Citation

Yujun Pan, Xiuli Bai, Hongchun Chen, Xuefeng Xu, and Jing Liu "On-chip high-order mode converter and a 10-channel simultaneous polarization- and mode-division-multiplexer", Proc. SPIE 11617, International Conference on Optoelectronic and Microelectronic Technology and Application, 116172S (4 December 2020); https://doi.org/10.1117/12.2585379

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