A Tunable Inductor Peaking Technique for Optical Communication Systems

A tunable inductor peaking technique for loss compensation in optical communication systems is presented. The proposed technique is based on creating a tunable damped resonator with a fixed peaking inductor and a high-frequency transistor with low intrinsic capacitance. The tuning technique is first demonstrated with a generic equivalent circuit model and then implemented and evaluated using the high-speed bipolar transistor in 130 nm IHP SG13G2 BiCMOS technology, featuring f<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">t</inf>/f<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">max</inf> of 350 / 450 GHz. Our proposed technique has been simulated in a real case scenario demonstrating the effectiveness of the tunable inductor peaking technique for loss compensation in optical communication systems.