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50 GBd PAM4 transmitter with a 55nm SiGe BiCMOS driver and silicon photonic segmented MZM

(2020) OPTICS EXPRESS. 28(16). p.23950-23960
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  • ATTO (A new concept for ultra-high capacity wireless networks.)
Abstract
We demonstrate an optical transmitter consisting of a limiting SiGe BiCMOS driver co-designed and co-packaged with a silicon photonic segmented traveling-wave Mach-Zehnder modulator (MZM). The MZM is split into two traveling-wave segments to increase the bandwidth and to allow a 2-bit DAC functionality. Two limiting driver channels are used to drive these segments, allowing both NRZ and PAM4 signal generation in the optical domain. The voltage swing as well as the peaking of the driver output are tunable, hence the PAM4 signal levels can be tuned and possible bandwidth limitations of the MZM segments can be partially alleviated. Generation of 50 Gbaud and 53 Gbaud PAM4 yields a TDECQ of 2.8 and 3.8 dB with a power efficiency of 3.9 and 3.6 pJ/bit, respectively; this is the best reported efficiency for co-packaged silicon transmitters for short-reach datacenter interconnects at these data rates. With this work, we show the potential of limiting drivers and segmented traveling-wave modulators in 400G capable short-reach optical interconnects.
Keywords
MODULATOR

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Citation

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MLA
Breyne, Laurens, et al. “50 GBd PAM4 Transmitter with a 55nm SiGe BiCMOS Driver and Silicon Photonic Segmented MZM.” OPTICS EXPRESS, vol. 28, no. 16, 2020, pp. 23950–60, doi:10.1364/OE.397765.
APA
Breyne, L., Ramon, H., Van Gasse, K., Verplaetse, M., Lambrecht, J., Vanhoecke, M., … Bauwelinck, J. (2020). 50 GBd PAM4 transmitter with a 55nm SiGe BiCMOS driver and silicon photonic segmented MZM. OPTICS EXPRESS, 28(16), 23950–23960. https://doi.org/10.1364/OE.397765
Chicago author-date
Breyne, Laurens, Hannes Ramon, Kasper Van Gasse, Michiel Verplaetse, Joris Lambrecht, Michael Vanhoecke, Joris Van Campenhout, et al. 2020. “50 GBd PAM4 Transmitter with a 55nm SiGe BiCMOS Driver and Silicon Photonic Segmented MZM.” OPTICS EXPRESS 28 (16): 23950–60. https://doi.org/10.1364/OE.397765.
Chicago author-date (all authors)
Breyne, Laurens, Hannes Ramon, Kasper Van Gasse, Michiel Verplaetse, Joris Lambrecht, Michael Vanhoecke, Joris Van Campenhout, Günther Roelkens, Peter Ossieur, Xin Yin, and Johan Bauwelinck. 2020. “50 GBd PAM4 Transmitter with a 55nm SiGe BiCMOS Driver and Silicon Photonic Segmented MZM.” OPTICS EXPRESS 28 (16): 23950–23960. doi:10.1364/OE.397765.
Vancouver
1.
Breyne L, Ramon H, Van Gasse K, Verplaetse M, Lambrecht J, Vanhoecke M, et al. 50 GBd PAM4 transmitter with a 55nm SiGe BiCMOS driver and silicon photonic segmented MZM. OPTICS EXPRESS. 2020;28(16):23950–60.
IEEE
[1]
L. Breyne et al., “50 GBd PAM4 transmitter with a 55nm SiGe BiCMOS driver and silicon photonic segmented MZM,” OPTICS EXPRESS, vol. 28, no. 16, pp. 23950–23960, 2020.
@article{8673381,
  abstract     = {{We demonstrate an optical transmitter consisting of a limiting SiGe BiCMOS driver co-designed and co-packaged with a silicon photonic segmented traveling-wave Mach-Zehnder modulator (MZM). The MZM is split into two traveling-wave segments to increase the bandwidth and to allow a 2-bit DAC functionality. Two limiting driver channels are used to drive these segments, allowing both NRZ and PAM4 signal generation in the optical domain. The voltage swing as well as the peaking of the driver output are tunable, hence the PAM4 signal levels can be tuned and possible bandwidth limitations of the MZM segments can be partially alleviated. Generation of 50 Gbaud and 53 Gbaud PAM4 yields a TDECQ of 2.8 and 3.8 dB with a power efficiency of 3.9 and 3.6 pJ/bit, respectively; this is the best reported efficiency for co-packaged silicon transmitters for short-reach datacenter interconnects at these data rates. With this work, we show the potential of limiting drivers and segmented traveling-wave modulators in 400G capable short-reach optical interconnects.}},
  author       = {{Breyne, Laurens and Ramon, Hannes and Van Gasse, Kasper and Verplaetse, Michiel and Lambrecht, Joris and Vanhoecke, Michael and Van Campenhout, Joris and Roelkens, Günther and Ossieur, Peter and Yin, Xin and Bauwelinck, Johan}},
  issn         = {{1094-4087}},
  journal      = {{OPTICS EXPRESS}},
  keywords     = {{MODULATOR}},
  language     = {{eng}},
  number       = {{16}},
  pages        = {{23950--23960}},
  title        = {{50 GBd PAM4 transmitter with a 55nm SiGe BiCMOS driver and silicon photonic segmented MZM}},
  url          = {{http://dx.doi.org/10.1364/OE.397765}},
  volume       = {{28}},
  year         = {{2020}},
}

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