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

40 Gb/s Hochleistungsmodulatortreiber IC für Lichtwellenkommunikationssysteme

IEEE journal of solid-state circuits 33 (1998), No.10, pp.1520-1526 : Ill., Lit.
ISSN: 0018-9200
Journal Article
Fraunhofer IAF ()
data decision; Datenentscheider; driver circuits; HEMT integrated circuits; modulator; modulator driver; Modulator-Treiber; optical communication equipment; optical fibre communication; optical link; optical modulation; SCFL

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- mu m 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 degrees 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.