A Monolithic $\mathbf{400Gbps}$ Electro-Optical Retimer with Integrated TIA and Class-AB Silicon-Photonics/VCSEL Driver in 5nm FinFET

In this paper we present a <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$4 \times 100 \text{Gb} / \mathrm{s}$</tex> PAM4 electro-optical retimer with integrated TIA and driver realized in 5 nm FinFET technology. The focus of the paper is on the fully integrated line side electro-optical interfaces, targeting MMF (multi-mode fiber) as well as SMF (single-mode fiber) applications. In the line RX (LRX), with integrated TIA, a BER floor of 1E-11 and an average sensitivity of -9 dBm at a <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\text{BER}=2.4 \mathrm{E}-4$</tex> is achieved at 53.125 GBd. For the line TX (LTX), the integrated Silicon Photonics (SiPho) driver delivers 4Vpp to external Mach-Zehnder Modulators (MZM), while the integrated Vertical-Cavity Surface-Emitting Laser (VCSEL) driver delivers 9mApp to external VCSELs.

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Publication Details

Published
2025-06-08
DOI
https://doi.org/10.23919/vlsitechnologyandcir65189.2025.11074826
Citations
2
Primary Topic
Photonic and Optical Devices
Type
article
Field-Weighted Citation Impact
1.46
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article

A Monolithic $\mathbf{400Gbps}$ Electro-Optical Retimer with Integrated TIA and Class-AB Silicon-Photonics/VCSEL Driver in 5nm FinFET

Majid Davoodi, Ivan Fabiano, Marco Sosio, Domenico Albano et al.
2 citations
Photonic and Optical Devices
1.46
article

A Monolithic $\mathbf{400Gbps}$ Electro-Optical Retimer with Integrated TIA and Class-AB Silicon-Photonics/VCSEL Driver in 5nm FinFET

Majid Davoodi, Ivan Fabiano, Marco Sosio, Domenico Albano, F. Martinelli, KyungHi Chang, S. Scouten, L. Tse, Paolo Pascale, S. Jantzi, Marco Garampazzi, Daniel Burgos, F. De Bernardinis, Kevin J. Parker, Fabrizio Giunco, Claudio Nani, Nicola Codega, Claudio Asero, Enrico Temporiti, S. Cyrusian, Alessio Di Pasquo, Vincent Karam, J. Riani, Tamal Mukherjee, Enrico Monaco, N. Ghittori, S. Dadash, Paolo Rossi, G. Gira, N. Nadisha Miral
article en
2 citations

Abstract

In this paper we present a <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$4 \times 100 \text{Gb} / \mathrm{s}$</tex> PAM4 electro-optical retimer with integrated TIA and driver realized in 5 nm FinFET technology. The focus of the paper is on the fully integrated line side electro-optical interfaces, targeting MMF (multi-mode fiber) as well as SMF (single-mode fiber) applications. In the line RX (LRX), with integrated TIA, a BER floor of 1E-11 and an average sensitivity of -9 dBm at a <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\text{BER}=2.4 \mathrm{E}-4$</tex> is achieved at 53.125 GBd. For the line TX (LTX), the integrated Silicon Photonics (SiPho) driver delivers 4Vpp to external Mach-Zehnder Modulators (MZM), while the integrated Vertical-Cavity Surface-Emitting Laser (VCSEL) driver delivers 9mApp to external VCSELs.

Marvell (United States) (US), Marvell (Israel) (IL)
Affordable and clean energy
Openalex Percentile: Top 16%
Photonic and Optical Devices
1.46
DOISourceOpenAlex
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