Journal
OPTICS COMMUNICATIONS
Volume 479, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.optcom.2020.126455
Keywords
Plasmonic; VO2; ITO; Electro-absorption modulator
Categories
Funding
- Department of Science and Technology, Science and Engineering Research Board (DST-SERB), India [YSS/2015/000942]
- University Grant Commission (UGC), India
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This study presents two CMOS compatible plasmonic electro-absorption modulators based on VO2 and ITO, with improved performance matrices. The rigorous FEM optimization method resulted in better IL, ER, and FOM values for both modulators, making them potentially useful for designing CMOS compatible optical modulators on SOI technology.
We have designed two CMOS compatible plasmonic electro-absorption modulators (EAMs) based on vanadium dioxide (VO2) and indium tin oxide (ITO). Their performance matrices have been improved in terms of insertion loss (IL), extinction ratio (ER), and figure of merit (FOM). Rigorous Finite Element Method (FEM) has been used to optimize output parameters based on the input device parameters. The IL, ER, and FOM for both the modulators were 0.651 dB/pm, 5.85 dB/pm, 8.98, respectively, for VO2 based EAM and 0.025 dB/pm, 3.07 dB/pm, 122, respectively, for ITO based EAM. This article can be useful to design a CMOS compatible optical modulator on Silicon-on-Insulator (SOI) technology.
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