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An 18-Gb/s fully integrated optical receiver with adaptive cascaded equalizer
Pan Q.1; Wang Y.2; Lu Y.3; Yue C.P.3
2016-11-01
Source PublicationIEEE Journal on Selected Topics in Quantum Electronics
ISSN1077260X
Volume22Issue:6
Abstract

An 18-Gb/s fully integrated optoelectronic integrated circuit for short-distance communications is realized in the TSMC 65-nm CMOS process. The system consists of a CMOS on-chip photodetector, an inverter-based cascode transimpedance amplifier, a DC offset cancellation buffer, a main amplifier, a three-stage tunable continuous-time linear equalizer, a two-stage modified limiting amplifier, a DC offset cancellation network, an adaptive equalization loop, a low dropout regulator, and a 50-ω termination output buffer. The CMOS P-Well/Deep N-Well on-chip photodetector improves bandwidth and responsivity without technology modification. Moreover, the adaptive cascaded equalization further compensates for the limited bandwidth of the on-chip photodetector with a 5-10-dB/dec roll-up frequency response. The electrical measurement results show a transimpedance gain of 102 dBω and a bandwidth of 12.5 GHz. Furthermore, the optical measurement results demonstrate a fully integrated solution with (1) standard mode: data traffic of 9 Gb/s for 2-1 PRBS with 10 BER, -4.2-dBm optical input sensitivity, and 5.33-pJ/b efficiency; (2) avalanche mode: data traffic of 18 Gb/s for 2-1 PRBS with 10 BER, -4.9-dBm optical input sensitivity, and 2.7-pJ/b efficiency. The chip occupies a core area of 0.23 mm and dissipates 48 mW from a 1/1.2-V voltage supply.

KeywordAdaptive Equalizer Continuous-time Linear Equalizer (Ctle) Dc Offset Cancellation Inverter-based Cascode Transimpedance Amplifier Limiting Amplifier (La) Low Dropout Regulator Optical Receivers Optoelectronic Integrated Circuits Silicon Photodetector
DOI10.1109/JSTQE.2016.2574567
URLView the original
Indexed BySCIE
WOS Research AreaEngineering ; Physics ; Optics
WOS SubjectEngineering, Electrical & Electronic ; Quantum Science & Technology ; Optics ; Physics, Applied
WOS IDWOS:000384232500001
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Cited Times [WOS]:13   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF MICROELECTRONICS
Affiliation1.eTopus Technology Inc., Sunnyvale, CA USA
2.State-Key Lab of Analog and Mixed-Signal VLSI, University of Macau, Guangdong, China
3.Electronic and Computer Engineering Department of Hong Kong University of Science and Technology, Hong Kong
Recommended Citation
GB/T 7714
Pan Q.,Wang Y.,Lu Y.,et al. An 18-Gb/s fully integrated optical receiver with adaptive cascaded equalizer[J]. IEEE Journal on Selected Topics in Quantum Electronics,2016,22(6).
APA Pan Q.,Wang Y.,Lu Y.,&Yue C.P..(2016).An 18-Gb/s fully integrated optical receiver with adaptive cascaded equalizer.IEEE Journal on Selected Topics in Quantum Electronics,22(6).
MLA Pan Q.,et al."An 18-Gb/s fully integrated optical receiver with adaptive cascaded equalizer".IEEE Journal on Selected Topics in Quantum Electronics 22.6(2016).
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