TR2016-029

Design of a 1 Tb/s Superchannel Coherent Receiver

    •  Millar, D.S., Koike-Akino, T., Kojima, K., Pajovic, M., Parsons, K., Paskov, M., Maher, R., Lavery, D., Alvarado, A., Thomsen, B.C., Savory, S.J., Bayvel, P., "Design of a 1 Tb/s Superchannel Coherent Receiver", Journal of Lightwave Technology, DOI: 10.1109/​JLT.2016.2519260, Vol. 34, No. 6, pp. 1453-1463, March 2016.
      BibTeX TR2016-029 PDF
      • @article{Millar2016mar,
      • author = {Millar, David S. and Koike-Akino, Toshiaki and Kojima, Keisuke and Pajovic, Milutin and Parsons, Kieran and Paskov, Milen and Maher, Robert and Lavery, Domanic and Alvarado, Alex and Thomsen, Benn C. and Savory, Seb J. and Bayvel, Polina},
      • title = {Design of a 1 Tb/s Superchannel Coherent Receiver},
      • journal = {Journal of Lightwave Technology},
      • year = 2016,
      • volume = 34,
      • number = 6,
      • pages = {1453--1463},
      • month = mar,
      • doi = {10.1109/JLT.2016.2519260},
      • issn = {0733-8724},
      • url = {https://www.merl.com/publications/TR2016-029}
      • }
  • MERL Contacts:
  • Research Areas:

    Communications, Signal Processing

Abstract:

We describe the design of a trained and pilot-aided digital coherent receiver, capable of detecting a 1 Tb/s superchannel with a single optical front-end. Algorithms for receiver training are described, which calculate the equalizer coefficients, subchannel SNRs, and centroids of the transmitted constellations. Algorithms for pilot-aided operation are then described in detail, providing pilot-aided constant modulus equalization and joint carrier phase estimation over several coherent subchannels. We demonstrate detection of a superchannel with net bit rate in excess of 1 Tb/s with a single coherent receiver. An 11 10 GBd DP-64QAM Nyquist superchannel is used, with 1.32 Tb/s gross bit rate.