160-GSa/s-and-Beyond 108-GHz-Bandwidth Over-2-Vppd Output-Swing 0.5-μm InP DHBT 2:1 AMUX-Driver for Next-Generation Optical Communications

• DOI: 10.1109/lmwc.2022.3161706
• Publication Date: 2022-04-08T19:25:59Z
• Authors: R. Hersent; A. Konczykowska; F. Jorge; F. Blache; V. Nodjiadjim; M. Riet; C. Mismer; J. Renaudier
• Keywords: Indium phosphide

This letter reports on a 108-GHz bandwidth 0.5- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> InP DHBT analog-multiplexer-driver (AMUX-driver). To the best of authors' knowledge, this 2:1 AMUX-driver shows unprecedented 1.9-V <sub xmlns:xlink="http://www.w3.org/1999/xlink">ppd</sub> 160-GSa/s 160-GBd non-return-to-zero (NRZ) and 2.4-V 100-GSa/s 100-GBd PAM-4 output swings, with very high-quality eye diagrams, without any digital signal processing (DSP) or postprocessing. Up to 3.2 V is obtained in NRZ at 100 GBd. The lumped also record 25.7-dB gain 2.08-THz gain-bandwidth product 11.1-dB equalizing capabilities 86.6 GHz.