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TU Berlin

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Philipp Scholz, Dr.-Ing.

Lupe

Head of Laboratory

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Publications (at MSC)

Non-Linear PAM-4 VCSEL Equalization and 22 nm SOI CMOS DAC for 112 Gbit/s Data Transmission
Citation key Hecht2019.42
Author U. Hecht and N. Ledentsov and P. Scholz and M. Agustin and P. Schulz and N.N. Ledentsov and F. Gerfers
Title of Book 12th German Microwave Conference (GeMiC)
Year 2019
DOI http://dx.doi.org/10.23919/GEMIC.2019.8698167
Publisher IEEE
Abstract The non-linear behavior of 850nm VCSELs is analyzed. 80Gbit/s unequalized optical PAM-4 signal is demonstrated for the first time. The proposed non-linear TX equalization enables 112Gbit/s PAM-4 data transmission with significant linearity and SNR improvements. A 7bit segmented DAC driver is proposed for the 56Gbaud transmitter. It is Implemented in a 22nm SOI CMOS process providing a differential signal swing of 950mVppd as well as a SNR and SFDR of 43dB and 53dBc respectively.
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Head of Chair

Prof. Friedel Gerfers
Phone: +49 30 314-78181
Room: EN 423

For consultation hours, please contact us via e-mail.

Assistant to Chair
Sara Tennstedt
Room: EN 417
Phone: +49 30 314-78180

sekr@msc.tu-berlin.de

Currently no open office hours - please contact us via e-mail or phone in advance. Thank you.

Postal Address

Technische Universität Berlin
FG Mixed Signal Circuit Design
Sekr. EN 4
Einsteinufer 17

10587 Berlin
Germany