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T-Space at The University of Toronto Libraries >
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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/31414

Title: A 2Gbps Optical Receiver with Integrated Photodiode in 90nm CMOS
Authors: Rousson, Alain
Advisor: Chan Carusone, Anthony
Department: Electrical and Computer Engineering
Keywords: CMOS
optical receiver
photodiode
integrated
transimpedance amplifier
SML
Issue Date: 20-Dec-2011
Abstract: The objective of this work was to integrate an optical receiver in a modern standard technology in a form amenable to multiple lanes. To accomplish this goal, a photodiode was integrated with the receiver in a standard 90nm CMOS process and the nominal process voltage of 1.2V was not exceeded. Two optical lanes were integrated on chip with a pitch compatible with existing industry photodiode arrays. This work uses a non-SML photodiode to increase optical responsivity to 0.141A/W, almost 3 times higher than values typically reported for SML photodiodes. This receiver is the first integrated optical receiver reported in a standard CMOS technology with a feature size smaller than 0.13μm, which is necessary for the eventual integration of optical receivers with modern digital processing blocks on a single die. The traditional analog equalizer used in most integrated optical receivers is replaced with a high-pass filter and hysteresis latch for equalization. The receiver occupies a core area of 0.197mm2 and has an optical sensitivity of -3.7dBm at a 2Gbps data rate, while consuming 46.3mW.
URI: http://hdl.handle.net/1807/31414
Appears in Collections:Master

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