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A high-gain InP D-HBT driver amplifier with 50 GHz bandwidth and 10 Vpp differential output swing at 40 Gb/s

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11 Author(s)
Y. Baeyens ; Lucent Technol. Bell Labs., Murray Hill, NJ, USA ; N. Weimann ; R. Kopf ; P. Roux
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A high-performance and compact 40 Gb/s driver amplifier was realized in a 1.2 /spl mu/m emitter double-heterojunction InGaAs/InP HBT (D-HBT) technology. The 2-stage differential driver features a lumped input and fully distributed output stage and delivers more then 10 Vpp output swing at 40 Gb/s with 700 fs RMS jitter and rise and fall times of less than 8 ps. On-wafer measured S-parameters show a differential gain of 25 dB, more than 50 GHz bandwidth and in- and output reflection below -20 dB from 2-45 GHz. The amplifiers small die size (1.0/spl times/1.7 mm), relatively low power consumption and ability to have DC coupled in- and outputs, should enable compact 40 Gb/s transmitters with good 40 Gb/s optical eye opening for both NRZ, RZ, duobinary and DPSK transmission formats.

Published in:

Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 2003. 25th Annual Technical Digest 2003. IEEE

Date of Conference:

9-12 Nov. 2003