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2.5 Gbit/s/channel laser driver design for four-channel parallel optic transceiver using SiGe BiCMOS technology

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5 Author(s)
Young Gon Kim ; Agilent Technol. Inc, San Jose, CA, USA ; E. Bien ; J. J. Chang ; M. A. Robinson
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A laser driver for a four-channel parallel fibre optic transceiver operating up to 2.5 Gbit/s is designed using a 0.35 μm SiGe BiCMOS process. An 850 nm vertical cavity surface emitting laser diode array is used as a light source. The measurement was performed under the case temperature range 0-80°C at 3.1 to 3.5 V power supply variations. Using a gigabit Ethernet filter, a 45% eye mask margin has been achieved at -4 dBm average optical power and 7 dB extinction ratio at 40°C. The rise/fall time is less than 100 ps. The measured deterministic jitter is under 60 ps and the random jitter under 4 ps RMS.

Published in:

Electronics Letters  (Volume:39 ,  Issue: 5 )