Study of Electrical and Optical Peaking of Si Ring Modulators for Tailoring Modulation Band

Autor: Hsiang-Chih Kao, Ming-Wei Lin, Ming-Chang M. Lee
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: IEEE Photonics Journal, Vol 15, Iss 3, Pp 1-6 (2023)
Druh dokumentu: article
ISSN: 1943-0655
DOI: 10.1109/JPHOT.2023.3278856
Popis: An operation scheme using electrical peaking and optical peaking to engineer the modulation band of a Si microring modulator is presented. By incorporating an inductor design at the metal traces of a Si microring modulator, the driving signal can be magnified near the peaking frequency. Although adjusting the wavelength detuning of a ring modulator also introduces optical peaking to extend the 3-dB roll-off frequency, using inductive peaking has no detrimental effect on the low-frequency response. By exploiting both effects, the modulation band can be tailored with more degrees of freedom. We accomplish a Si microring modulator design with a wide and flat transmission band over 95 GHz, which is potentially applied for a non-return-to-zero (NRZ) data transmission over 120 Gbit/s without extra signal post-compensation.
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