45 GHz distributed amplifier with a linear 6-Vp-p output for a 40 Gb/s LiNbO/sub 3/ modulator driver circuit

13 November 2002

conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

No. 10647775,p. 137-140
https://doi.org/10.1109/gaas.2001.964364

Abstract

We developed a coplanar waveguided-type distributed amplifier for a LiNbO/sub 3/ modulator driver (LN driver) using double-doped AlGaAs/InGaAs/AlGaAs-pseudomorphic High Electron Mobility Transistors (p-HEMTs). By using a stabilization and impedance control technique, we obtained a 45 GHz bandwidth for coplanar waveguided (CPW) lines with a 600 /spl mu/m thick substrate and 54 GHz bandwidth for grounded coplanar waveguided (GCPW) lines with a 75 /spl mu/m thick substrate, and a linear 6-Vp-p output at 40 Gb/s. These results indicate that our circuit design technique is suitable for use in fiber-optic communication systems.

Keywords

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