High-speed silicon modulator with band equalization

Electro-optic modulation up to 70 Gbit/s has been demonstrated using a silicon Mach-Zehnder modulator with a bias voltage of -1.5 V. In a wide frequency range from DC, an increasing input impedance of the modulator was designed to equalize its electro-optic frequency response. Without a bias voltage...

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Bibliographic Details
Published inOptics letters Vol. 39; no. 16; p. 4839
Main Authors Xu, Hao, Li, Xianyao, Xiao, Xi, Zhou, Peiji, Li, Zhiyong, Yu, Jinzhong, Yu, Yude
Format Journal Article
LanguageEnglish
Published United States 15.08.2014
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Summary:Electro-optic modulation up to 70 Gbit/s has been demonstrated using a silicon Mach-Zehnder modulator with a bias voltage of -1.5 V. In a wide frequency range from DC, an increasing input impedance of the modulator was designed to equalize its electro-optic frequency response. Without a bias voltage, the 3 dB bandwidth was measured as 35 GHz and it is predicted to be as high as 55 GHz at -3 V bias. Frequency responses of the modulator operated with counter-propagating waves were tested to verify the proposed prediction model.
ISSN:1539-4794
DOI:10.1364/OL.39.004839