Advanced search
1 file | 3.09 MB Add to list

4:1 silicon photonic serializer for data center interconnects demonstrating 104 Gbaud OOK and PAM4 transmission

(2019) JOURNAL OF LIGHTWAVE TECHNOLOGY. 37(5). p.1498-1503
Author
Organization
Abstract
With next-generation optical interconnects for data centers aiming for 0.8 Tb/s or 1.6 Tb/s, 100 Gbaud capable transmitters from a single-laser source will become indispensable. However, these lane rates would require bandwidths of 70 GHz or more, doubling the bandwidth requirements of the electrical and optical components with respect to the fastest current generation of optical interconnects running at 53 Gbaud pulse-amplitude modulation (PAM-4). In this paper, we propose an integrated 4: 1 optical serializer topology to achieve 104 Gbaud On-Off Keying (OOK) and PAM-4 transmission using only quarter rate components at the transmitter. We show 104 (208) Gbit/s OOK (PAM4) transmission using four GeSi electro-absorption modulators (EAMs) over 1 km of single-mode fiber (SMF). For 104 Gbaud OOK, clearly open eyes are obtained, while for PAM-4 the performance is limited by the nonlinear E/O-transfer function of the EAM. However, adding pre-emphasis in the electrical driver or replacing the single EAM with our previously demonstrated optical DAC topology-consisting of two EAMs in parallel with a 90 degrees phase difference between each-could substantially improve these results. Additionally, we discuss the possibility of a four channel transmitter (4 x 208 Gb/s) from a single mode locked laser, amounting to a 832 Gb/s rate based on the current demonstrator.
Keywords
Integrated optics, optical interconnects, silicon photonics, waveguide, modulators

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 3.09 MB

Citation

Please use this url to cite or link to this publication:

MLA
Verbist, Jochem et al. “4:1 Silicon Photonic Serializer for Data Center Interconnects Demonstrating 104 Gbaud OOK and PAM4 Transmission.” JOURNAL OF LIGHTWAVE TECHNOLOGY 37.5 (2019): 1498–1503. Print.
APA
Verbist, J., Vanhoecke, M., Lillieholm, M., Srinivasan, S. A., De Heyn, P., Van Campenhout, J., Galili, M., et al. (2019). 4:1 silicon photonic serializer for data center interconnects demonstrating 104 Gbaud OOK and PAM4 transmission. JOURNAL OF LIGHTWAVE TECHNOLOGY, 37(5), 1498–1503. Presented at the 44th Annual European Conference on Optical Communication (ECOC).
Chicago author-date
Verbist, Jochem, Michael Vanhoecke, Mads Lillieholm, Srinivasan Ashwyn Srinivasan, Peter De Heyn, Joris Van Campenhout, Michael Galili, et al. 2019. “4:1 Silicon Photonic Serializer for Data Center Interconnects Demonstrating 104 Gbaud OOK and PAM4 Transmission.” Journal of Lightwave Technology 37 (5): 1498–1503.
Chicago author-date (all authors)
Verbist, Jochem, Michael Vanhoecke, Mads Lillieholm, Srinivasan Ashwyn Srinivasan, Peter De Heyn, Joris Van Campenhout, Michael Galili, Leif K. Oxenlowe, Xin Yin, Johan Bauwelinck, and Günther Roelkens. 2019. “4:1 Silicon Photonic Serializer for Data Center Interconnects Demonstrating 104 Gbaud OOK and PAM4 Transmission.” Journal of Lightwave Technology 37 (5): 1498–1503.
Vancouver
1.
Verbist J, Vanhoecke M, Lillieholm M, Srinivasan SA, De Heyn P, Van Campenhout J, et al. 4:1 silicon photonic serializer for data center interconnects demonstrating 104 Gbaud OOK and PAM4 transmission. JOURNAL OF LIGHTWAVE TECHNOLOGY. Piscataway: Ieee-inst Electrical Electronics Engineers Inc; 2019;37(5):1498–503.
IEEE
[1]
J. Verbist et al., “4:1 silicon photonic serializer for data center interconnects demonstrating 104 Gbaud OOK and PAM4 transmission,” JOURNAL OF LIGHTWAVE TECHNOLOGY, vol. 37, no. 5, pp. 1498–1503, 2019.
@article{8612879,
  abstract     = {With next-generation optical interconnects for data centers aiming for 0.8 Tb/s or 1.6 Tb/s, 100 Gbaud capable transmitters from a single-laser source will become indispensable. However, these lane rates would require bandwidths of 70 GHz or more, doubling the bandwidth requirements of the electrical and optical components with respect to the fastest current generation of optical interconnects running at 53 Gbaud pulse-amplitude modulation (PAM-4). In this paper, we propose an integrated 4: 1 optical serializer topology to achieve 104 Gbaud On-Off Keying (OOK) and PAM-4 transmission using only quarter rate components at the transmitter. We show 104 (208) Gbit/s OOK (PAM4) transmission using four GeSi electro-absorption modulators (EAMs) over 1 km of single-mode fiber (SMF). For 104 Gbaud OOK, clearly open eyes are obtained, while for PAM-4 the performance is limited by the nonlinear E/O-transfer function of the EAM. However, adding pre-emphasis in the electrical driver or replacing the single EAM with our previously demonstrated optical DAC topology-consisting of two EAMs in parallel with a 90 degrees phase difference between each-could substantially improve these results. Additionally, we discuss the possibility of a four channel transmitter (4 x 208 Gb/s) from a single mode locked laser, amounting to a 832 Gb/s rate based on the current demonstrator.},
  author       = {Verbist, Jochem and Vanhoecke, Michael and Lillieholm, Mads and Srinivasan, Srinivasan Ashwyn and De Heyn, Peter and Van Campenhout, Joris and Galili, Michael and Oxenlowe, Leif K. and Yin, Xin and Bauwelinck, Johan and Roelkens, Günther},
  issn         = {0733-8724},
  journal      = {JOURNAL OF LIGHTWAVE TECHNOLOGY},
  keywords     = {Integrated optics,optical interconnects,silicon photonics,waveguide,modulators},
  language     = {eng},
  location     = {Rome, ITALY},
  number       = {5},
  pages        = {1498--1503},
  publisher    = {Ieee-inst Electrical Electronics Engineers Inc},
  title        = {4:1 silicon photonic serializer for data center interconnects demonstrating 104 Gbaud OOK and PAM4 transmission},
  url          = {http://dx.doi.org/10.1109/JLT.2019.2897401},
  volume       = {37},
  year         = {2019},
}

Altmetric
View in Altmetric
Web of Science
Times cited: