High-Speed SiGe BiCMOS Detector Enabling a 28 Gbps Quasi-Coherent Optical Receiver

Guillermo Silva Valdecasa; Omar Gallardo Puertas; Jose A. Altabas; Michele Squartecchia; Jesper Bevensee Jensen; Tom K. Johansen

doi:10.1109/TCSII.2021.3111451

High-Speed SiGe BiCMOS Detector Enabling a 28 Gbps Quasi-Coherent Optical Receiver

Guillermo Silva Valdecasa, Omar Gallardo Puertas, Jose A. Altabas, Michele Squartecchia, Jesper Bevensee Jensen, Tom K. Johansen

Bifrost Communications

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Abstract

This brief presents a high-speed detector targeting quasi-coherent optical receivers operating up to 28 Gbps data rates. The circuit consists of a balanced rectifier based on diode-connected heterojunction bipolar transistors (HBTs) together with tailored input and output filtering networks. The rectifier is buffered by a linear DC-coupled single-ended to differential amplifier providing a 50 Ω output interface. The design was fabricated in a commercial 130 nm SiGe BiCMOS technology with ft/fmax of 250/340 GHz, and was tested on a quasi-coherent receiver setup. Optical receiver sensitivity better than -28 dBm and -26 dBm (FEC-limited BER of 1E-3) is demonstrated, respectively, at 25 and 28 Gbps data rates. To the best of the author’s knowledge, the reported circuit represents the fastest envelope detector published to date.

Original language	English
Journal	IEEE Transactions on Circuits and Systems II: Express Briefs
Volume	69
Issue number	3
Pages (from-to)	964 - 968
ISSN	1549-7747
DOIs	https://doi.org/10.1109/TCSII.2021.3111451
Publication status	Published - 2022

Keywords

Analog processing circuits
Application specific integrated circuits
Baseband
Demodulation
Detectors
Envelope detectors
High-speed integrated circuits
Nonlinear circuits
Optical amplifiers
Optical filters
Optical polarization
Optical receivers
Rectifiers
SiGe BiCMOS.

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title = "High-Speed SiGe BiCMOS Detector Enabling a 28 Gbps Quasi-Coherent Optical Receiver",

abstract = "This brief presents a high-speed detector targeting quasi-coherent optical receivers operating up to 28 Gbps data rates. The circuit consists of a balanced rectifier based on diode-connected heterojunction bipolar transistors (HBTs) together with tailored input and output filtering networks. The rectifier is buffered by a linear DC-coupled single-ended to differential amplifier providing a 50 Ω output interface. The design was fabricated in a commercial 130 nm SiGe BiCMOS technology with ft/fmax of 250/340 GHz, and was tested on a quasi-coherent receiver setup. Optical receiver sensitivity better than -28 dBm and -26 dBm (FEC-limited BER of 1E-3) is demonstrated, respectively, at 25 and 28 Gbps data rates. To the best of the author{\textquoteright}s knowledge, the reported circuit represents the fastest envelope detector published to date.",

keywords = "Analog processing circuits, Application specific integrated circuits, Baseband, Demodulation, Detectors, Envelope detectors, High-speed integrated circuits, Nonlinear circuits, Optical amplifiers, Optical filters, Optical polarization, Optical receivers, Rectifiers, SiGe BiCMOS.",

author = "Valdecasa, {Guillermo Silva} and Puertas, {Omar Gallardo} and Altabas, {Jose A.} and Michele Squartecchia and Jensen, {Jesper Bevensee} and Johansen, {Tom K.}",

year = "2022",

doi = "10.1109/TCSII.2021.3111451",

language = "English",

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T1 - High-Speed SiGe BiCMOS Detector Enabling a 28 Gbps Quasi-Coherent Optical Receiver

AU - Valdecasa, Guillermo Silva

AU - Puertas, Omar Gallardo

AU - Altabas, Jose A.

AU - Squartecchia, Michele

AU - Jensen, Jesper Bevensee

AU - Johansen, Tom K.

PY - 2022

Y1 - 2022

N2 - This brief presents a high-speed detector targeting quasi-coherent optical receivers operating up to 28 Gbps data rates. The circuit consists of a balanced rectifier based on diode-connected heterojunction bipolar transistors (HBTs) together with tailored input and output filtering networks. The rectifier is buffered by a linear DC-coupled single-ended to differential amplifier providing a 50 Ω output interface. The design was fabricated in a commercial 130 nm SiGe BiCMOS technology with ft/fmax of 250/340 GHz, and was tested on a quasi-coherent receiver setup. Optical receiver sensitivity better than -28 dBm and -26 dBm (FEC-limited BER of 1E-3) is demonstrated, respectively, at 25 and 28 Gbps data rates. To the best of the author’s knowledge, the reported circuit represents the fastest envelope detector published to date.

AB - This brief presents a high-speed detector targeting quasi-coherent optical receivers operating up to 28 Gbps data rates. The circuit consists of a balanced rectifier based on diode-connected heterojunction bipolar transistors (HBTs) together with tailored input and output filtering networks. The rectifier is buffered by a linear DC-coupled single-ended to differential amplifier providing a 50 Ω output interface. The design was fabricated in a commercial 130 nm SiGe BiCMOS technology with ft/fmax of 250/340 GHz, and was tested on a quasi-coherent receiver setup. Optical receiver sensitivity better than -28 dBm and -26 dBm (FEC-limited BER of 1E-3) is demonstrated, respectively, at 25 and 28 Gbps data rates. To the best of the author’s knowledge, the reported circuit represents the fastest envelope detector published to date.

KW - Analog processing circuits

KW - Application specific integrated circuits

KW - Baseband

KW - Demodulation

KW - Detectors

KW - Envelope detectors

KW - High-speed integrated circuits

KW - Nonlinear circuits

KW - Optical amplifiers

KW - Optical filters

KW - Optical polarization

KW - Optical receivers

KW - Rectifiers

KW - SiGe BiCMOS.

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DO - 10.1109/TCSII.2021.3111451

M3 - Journal article

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EP - 968

JO - IEEE Transactions on Circuits and Systems II: Express Briefs

JF - IEEE Transactions on Circuits and Systems II: Express Briefs

IS - 3

ER -

High-Speed SiGe BiCMOS Detector Enabling a 28 Gbps Quasi-Coherent Optical Receiver

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