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http://dx.doi.org/10.3807/JOSK.2013.17.1.044

10 Gbps Transimpedance Amplifier-Receiver for Optical Interconnects  

Sangirov, Jamshid (Photonic Computer Systems Laboratory, Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST))
Ukaegbu, Ikechi Augustine (Photonic Computer Systems Laboratory, Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST))
Lee, Tae-Woo (Photonic Computer Systems Laboratory, Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST))
Cho, Mu Hee (Photonic Computer Systems Laboratory, Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST))
Park, Hyo-Hoon (Photonic Computer Systems Laboratory, Department of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST))
Publication Information
Journal of the Optical Society of Korea / v.17, no.1, 2013 , pp. 44-49 More about this Journal
Abstract
A transimpedance amplifier (TIA)-optical receiver (Rx) using two intersecting active feedback system with regulated-cascode (RGC) input stage has been designed and implemented for optical interconnects. The optical TIA-Rx chip is designed in a 0.13 ${\mu}m$ CMOS technology and works up to 10 Gbps data rate. The TIA-Rx chip core occupies an area of 0.051 $mm^2$ with power consumption of 16.9 mW at 1.3 V. The measured input-referred noise of optical TIA-Rx is 20 pA/${\surd}$Hz with a 3-dB bandwidth of 6.9 GHz. The proposed TIA-Rx achieved a high gain-bandwidth product per DC power figure of merit of 408 $GHz{\Omega}/mW$.
Keywords
Optical receiver; Transimpedance amplifier; Optical interconnect;
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