34-GBD linear transimpedance amplifier for 200-Gb/s DP-16-QAM optical coherent receivers

Mostafa G. Ahmed, Tam N. Huynh, Christopher Williams, Yong Wang, Pavan Kumar Hanumolu, Alexander Rylyakov

Research output: Contribution to journalArticle

Abstract

High spectral efficiency offered by the coherent optical communication links makes them attractive for the next-generation optical communication links. Using advanced modulation schemes such as dual-polarization quadrature-amplitude modulation (DP-QAM) data rates beyond 200 Gb/s can be achieved. A key component of such links is the wide-bandwidth and high-linearity coherent optical receiver. In this paper, we present a fully differential (FD) optical receiver architecture consisting of a variable-gain transimpedance amplifier (VG-TIA) followed by a VG amplifier (VGA). The proposed optical receiver employs a dual-feedback automatic gain control (AGC) loop that controls both the front-end VG-TIA and the following VGA to achieve both low-noise and high-linearity operation. A new photodiode (PD) dc current cancellation scheme is developed and implemented for the full differential front-end TIA. A prototype dual-TIA chip is fabricated in a 0.13-µm SiGe BiCMOS process. The presented TIA achieves 20-pA/Hz input-referred noise (IRN) density, 27-GHz, 3-dB bandwidth, and 1.5% total harmonic distortion (THD) at 1-mA pp input PD current and 500-mV pp output voltage swing. This enables the 34-GBd operation with the bit error rate (BER) of 10 −10 and 5.4 × 10 −4 using DP-QPSK and DP-16-QAM formats at optical signal-to-noise ratios (OSNRs) of 25 and 30 dB, respectively, demonstrating the 100- and 200-Gb/s single wavelength optical coherent receiver operation. The dual-TIA chip occupies an area of 1.4 mm × 1.6 mm and consumes 313 mW per channel at 34 GBd from a 3.3-V supply.

Original languageEnglish (US)
Article number8570782
Pages (from-to)834-844
Number of pages11
JournalIEEE Journal of Solid-State Circuits
Volume54
Issue number3
DOIs
StatePublished - Mar 2019

Fingerprint

Optical receivers
Operational amplifiers
Quadrature amplitude modulation
Telecommunication links
Optical communication
Photodiodes
Bandwidth
Quadrature phase shift keying
Gain control
Harmonic distortion
Bit error rate
Signal to noise ratio
Modulation
Polarization
Feedback
Wavelength
Electric potential
Variable gain amplifiers

Keywords

  • Automatic gain control (AGC)
  • Coherent optical communication link
  • Coherent optical receiver
  • DP-16-quadrature-amplitude modulation (QAM)
  • Dual-polarization (DP)-QPSK
  • Linear transimpedance amplifier (TIA)
  • SiGe
  • Silicon photonics

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

34-GBD linear transimpedance amplifier for 200-Gb/s DP-16-QAM optical coherent receivers. / Ahmed, Mostafa G.; Huynh, Tam N.; Williams, Christopher; Wang, Yong; Hanumolu, Pavan Kumar; Rylyakov, Alexander.

In: IEEE Journal of Solid-State Circuits, Vol. 54, No. 3, 8570782, 03.2019, p. 834-844.

Research output: Contribution to journalArticle

Ahmed, Mostafa G. ; Huynh, Tam N. ; Williams, Christopher ; Wang, Yong ; Hanumolu, Pavan Kumar ; Rylyakov, Alexander. / 34-GBD linear transimpedance amplifier for 200-Gb/s DP-16-QAM optical coherent receivers. In: IEEE Journal of Solid-State Circuits. 2019 ; Vol. 54, No. 3. pp. 834-844.
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abstract = "High spectral efficiency offered by the coherent optical communication links makes them attractive for the next-generation optical communication links. Using advanced modulation schemes such as dual-polarization quadrature-amplitude modulation (DP-QAM) data rates beyond 200 Gb/s can be achieved. A key component of such links is the wide-bandwidth and high-linearity coherent optical receiver. In this paper, we present a fully differential (FD) optical receiver architecture consisting of a variable-gain transimpedance amplifier (VG-TIA) followed by a VG amplifier (VGA). The proposed optical receiver employs a dual-feedback automatic gain control (AGC) loop that controls both the front-end VG-TIA and the following VGA to achieve both low-noise and high-linearity operation. A new photodiode (PD) dc current cancellation scheme is developed and implemented for the full differential front-end TIA. A prototype dual-TIA chip is fabricated in a 0.13-µm SiGe BiCMOS process. The presented TIA achieves 20-pA/Hz input-referred noise (IRN) density, 27-GHz, 3-dB bandwidth, and 1.5{\%} total harmonic distortion (THD) at 1-mA pp input PD current and 500-mV pp output voltage swing. This enables the 34-GBd operation with the bit error rate (BER) of 10 −10 and 5.4 × 10 −4 using DP-QPSK and DP-16-QAM formats at optical signal-to-noise ratios (OSNRs) of 25 and 30 dB, respectively, demonstrating the 100- and 200-Gb/s single wavelength optical coherent receiver operation. The dual-TIA chip occupies an area of 1.4 mm × 1.6 mm and consumes 313 mW per channel at 34 GBd from a 3.3-V supply.",
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T1 - 34-GBD linear transimpedance amplifier for 200-Gb/s DP-16-QAM optical coherent receivers

AU - Ahmed, Mostafa G.

AU - Huynh, Tam N.

AU - Williams, Christopher

AU - Wang, Yong

AU - Hanumolu, Pavan Kumar

AU - Rylyakov, Alexander

PY - 2019/3

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N2 - High spectral efficiency offered by the coherent optical communication links makes them attractive for the next-generation optical communication links. Using advanced modulation schemes such as dual-polarization quadrature-amplitude modulation (DP-QAM) data rates beyond 200 Gb/s can be achieved. A key component of such links is the wide-bandwidth and high-linearity coherent optical receiver. In this paper, we present a fully differential (FD) optical receiver architecture consisting of a variable-gain transimpedance amplifier (VG-TIA) followed by a VG amplifier (VGA). The proposed optical receiver employs a dual-feedback automatic gain control (AGC) loop that controls both the front-end VG-TIA and the following VGA to achieve both low-noise and high-linearity operation. A new photodiode (PD) dc current cancellation scheme is developed and implemented for the full differential front-end TIA. A prototype dual-TIA chip is fabricated in a 0.13-µm SiGe BiCMOS process. The presented TIA achieves 20-pA/Hz input-referred noise (IRN) density, 27-GHz, 3-dB bandwidth, and 1.5% total harmonic distortion (THD) at 1-mA pp input PD current and 500-mV pp output voltage swing. This enables the 34-GBd operation with the bit error rate (BER) of 10 −10 and 5.4 × 10 −4 using DP-QPSK and DP-16-QAM formats at optical signal-to-noise ratios (OSNRs) of 25 and 30 dB, respectively, demonstrating the 100- and 200-Gb/s single wavelength optical coherent receiver operation. The dual-TIA chip occupies an area of 1.4 mm × 1.6 mm and consumes 313 mW per channel at 34 GBd from a 3.3-V supply.

AB - High spectral efficiency offered by the coherent optical communication links makes them attractive for the next-generation optical communication links. Using advanced modulation schemes such as dual-polarization quadrature-amplitude modulation (DP-QAM) data rates beyond 200 Gb/s can be achieved. A key component of such links is the wide-bandwidth and high-linearity coherent optical receiver. In this paper, we present a fully differential (FD) optical receiver architecture consisting of a variable-gain transimpedance amplifier (VG-TIA) followed by a VG amplifier (VGA). The proposed optical receiver employs a dual-feedback automatic gain control (AGC) loop that controls both the front-end VG-TIA and the following VGA to achieve both low-noise and high-linearity operation. A new photodiode (PD) dc current cancellation scheme is developed and implemented for the full differential front-end TIA. A prototype dual-TIA chip is fabricated in a 0.13-µm SiGe BiCMOS process. The presented TIA achieves 20-pA/Hz input-referred noise (IRN) density, 27-GHz, 3-dB bandwidth, and 1.5% total harmonic distortion (THD) at 1-mA pp input PD current and 500-mV pp output voltage swing. This enables the 34-GBd operation with the bit error rate (BER) of 10 −10 and 5.4 × 10 −4 using DP-QPSK and DP-16-QAM formats at optical signal-to-noise ratios (OSNRs) of 25 and 30 dB, respectively, demonstrating the 100- and 200-Gb/s single wavelength optical coherent receiver operation. The dual-TIA chip occupies an area of 1.4 mm × 1.6 mm and consumes 313 mW per channel at 34 GBd from a 3.3-V supply.

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KW - Linear transimpedance amplifier (TIA)

KW - SiGe

KW - Silicon photonics

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