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Design and experimental verification of a transimpedance amplifier for 64-Gb/s PAM-4 optical links

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Abstract
The use of four-level pulse-amplitude modulation (PAM-4) has emerged as a solution to increase the serial rate in short-range optical links, offering twice the data throughput but requiring similar bandwidth as on-off keying. However, the receiver design should take into account the increased susceptibility of PAM-4 to noise, intersymbol interference, and nonlinearity. This papers explores these challenges, and details the design of a transimpedance amplifier (TIA) for 64-Gb/s PAM-4 optical links. The TIA was implemented in 0.13-mu m SiGe BiCMOS, and has a power consumption of 180 mW. It contains a digital gain controller, which allows switching between four gain modes, to tradeoff sensitivity against linearity. Bit error rate (BER) measurements show that the dynamic range is significantly extended: Optical modulation amplitudes between -7 dBm and at least -0.2 dBm yield a BER lower than 10(-3).
Keywords
NM, BiCMOSintegrated circuits, optical receivers, optical fiber, communication, pulse amplitude modulation, IBCN

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Chicago
Moeneclaey, Bart, Jochen Verbrugghe, Joris Lambrecht, Elad Mentovich, Paraskevas Bakopoulos, Johan Bauwelinck, and Xin Yin. 2018. “Design and Experimental Verification of a Transimpedance Amplifier for 64-Gb/s PAM-4 Optical Links.” Journal of Lightwave Technology 36 (2): 195–203.
APA
Moeneclaey, B., Verbrugghe, J., Lambrecht, J., Mentovich, E., Bakopoulos, P., Bauwelinck, J., & Yin, X. (2018). Design and experimental verification of a transimpedance amplifier for 64-Gb/s PAM-4 optical links. JOURNAL OF LIGHTWAVE TECHNOLOGY, 36(2), 195–203. Presented at the Optical Fiber Communications Conference and Exhibition (OFC).
Vancouver
1.
Moeneclaey B, Verbrugghe J, Lambrecht J, Mentovich E, Bakopoulos P, Bauwelinck J, et al. Design and experimental verification of a transimpedance amplifier for 64-Gb/s PAM-4 optical links. JOURNAL OF LIGHTWAVE TECHNOLOGY. Piscataway: Ieee-inst Electrical Electronics Engineers Inc; 2018;36(2):195–203.
MLA
Moeneclaey, Bart, Jochen Verbrugghe, Joris Lambrecht, et al. “Design and Experimental Verification of a Transimpedance Amplifier for 64-Gb/s PAM-4 Optical Links.” JOURNAL OF LIGHTWAVE TECHNOLOGY 36.2 (2018): 195–203. Print.
@article{8555863,
  abstract     = {The use of four-level pulse-amplitude modulation (PAM-4) has emerged as a solution to increase the serial rate in short-range optical links, offering twice the data throughput but requiring similar bandwidth as on-off keying. However, the receiver design should take into account the increased susceptibility of PAM-4 to noise, intersymbol interference, and nonlinearity. This papers explores these challenges, and details the design of a transimpedance amplifier (TIA) for 64-Gb/s PAM-4 optical links. The TIA was implemented in 0.13-mu m SiGe BiCMOS, and has a power consumption of 180 mW. It contains a digital gain controller, which allows switching between four gain modes, to tradeoff sensitivity against linearity. Bit error rate (BER) measurements show that the dynamic range is significantly extended: Optical modulation amplitudes between -7 dBm and at least -0.2 dBm yield a BER lower than 10(-3).},
  author       = {Moeneclaey, Bart and Verbrugghe, Jochen and Lambrecht, Joris and Mentovich, Elad and Bakopoulos, Paraskevas and Bauwelinck, Johan and Yin, Xin},
  issn         = {0733-8724},
  journal      = {JOURNAL OF LIGHTWAVE TECHNOLOGY},
  keyword      = {NM,BiCMOSintegrated circuits,optical receivers,optical fiber,communication,pulse amplitude modulation,IBCN},
  language     = {eng},
  location     = {Los Angeles, CA},
  number       = {2},
  pages        = {195--203},
  publisher    = {Ieee-inst Electrical Electronics Engineers Inc},
  title        = {Design and experimental verification of a transimpedance amplifier for 64-Gb/s PAM-4 optical links},
  url          = {http://dx.doi.org/10.1109/JLT.2017.2774005},
  volume       = {36},
  year         = {2018},
}

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