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40-Gb/s high-power modulator driver IC for lightwave communication systems

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12 Author(s)
Zhihao Lao ; Fraunhofer Inst. of Appl. Solid State Phys., Freiburg, Germany ; Thiede, A. ; Nowotny, U. ; Lienhart, H.
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A monolithic integrated modulator driver with a data decision function for high-speed optical fiber links is presented. The integrated circuit (IC) was manufactured in a 0.2-μm gate length AlGaAs/InGaAs high electron mobility transistor technology with an fT of 68 GHz. The modulator driver IC features differential configuration and operates up to 40 Gb/s with a clock phase margin of 210° and an output voltage swing of 2.9 Vp-p at each output. The maximum slew rate of the output signal is 200 mV/ps. The power dissipation of the circuit is 1.6 W using a single supply voltage of -5 V

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Solid-State Circuits, IEEE Journal of  (Volume:33 ,  Issue: 10 )