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HiLight

 

Highly linear photo receiver module for 400Gb/s fiber-optic communication

 

The Objective

 

The data rate of fiber-optic communication links has been continuously growing in the past decade to cope with the growth in the internet traffic. It is expected that in the course of the next four years the data rate will increase by a factor of four, that is, to 400Gb/s. Simple on/off keying modulation, which was the standard modulation for 10Gb/s links, is no longer viable. To reach a data rate of 400Gb/s, long-haul fiber-optic transceivers will mostly use higher-order modulation schemes like DP-QPSK (dual-polarization quadrature phase shift keying). The project aims to develop a fully packaged photo receiver module for future optical communication systems. A new set of photonic components (photodiodes and 90 hybrids) as well as highly linear transimpedance amplifiers (TIAs) will be developed within the frame of the project.

 

IHP’s Contribution

 

IHP is developing the highly linear transimpedance amplifiers (TIAs) using the advanced IHP 0.25µm and 0.13µm SiGe BiCMOS technologies. The main design challenge is to provide TIAs with minimum total harmonic distortion and high bandwidth.

 

Funding

 

This research is funded by the federal ministry of education and research (Bundesministerium für Bildung und Forschung, BMBF).

 

Project Partners

 

U2t photonics AG, Berlin, Germany

Fraunhofer Heinrich Hertz Institute (HHI), Berlin, Germany

 

Das Gebäude und die Infrastruktur des IHP wurden finanziert vom Europäischen Fonds für regionale Entwicklung, von der Bundesregierung und vom Land Brandenburg.