Design of high extinction radio silicon optical modulator using cascade compensation method

Heming Hu; Xindan Zhang; Shuxiao Wang; Yufei Liu; Xiaoyue Ma; Miaomiao Gu; Lianxi Jia; Hua Chen; Qing Fang

doi:10.1117/12.2606749

24 November 2021 Design of high extinction radio silicon optical modulator using cascade compensation method

Heming Hu, Xindan Zhang, Shuxiao Wang, Yufei Liu, Xiaoyue Ma, Miaomiao Gu, Lianxi Jia, Hua Chen, Qing Fang

Proceedings Volume 12062, AOPC 2021: Optoelectronics and Nanophotonics; 120620P (2021) https://doi.org/10.1117/12.2606749
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China

Abstract

Since carrier dispersion and carrier absorption exist at the same time when the phase shifter is under phase modulation, decrease in extinction ratio is inevitable for silicon-based MZI modulator based plasma dispersion effect. In this paper, we demonstrate an optical modulator at 1550 nm wavelength band, using a cascaded compensation method. We balance the optical intensity in the two phase shifters of the MZI structure during modulation. With cascaded compensation method, the modulator has an extinction ratio of 51 dB and a dynamic extinction ratio of 10 dB at bitrates of 40 Gb/s.

Citation Download Citation

Heming Hu, Xindan Zhang, Shuxiao Wang, Yufei Liu, Xiaoyue Ma, Miaomiao Gu, Lianxi Jia, Hua Chen, and Qing Fang "Design of high extinction radio silicon optical modulator using cascade compensation method", Proc. SPIE 12062, AOPC 2021: Optoelectronics and Nanophotonics, 120620P (24 November 2021); https://doi.org/10.1117/12.2606749

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