Introducing the fast inverse NFT

Vishal Vaibhav, Sander Wahls

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

5 Citations (Scopus)


In optical fiber communication, the nonlinear frequency division multiplexing scheme requires a fast inverse nonlinear Fourier transform (NFT). We present two algorithms with O(N(K + log2 N)) complexity for N samples of a signal comprising K eigenvalues.

Original languageEnglish
Title of host publicationProceedings 2017 Optical Fiber Communications Conference and Exhibition (OCF 2017)
Place of PublicationPiscataway, NJ, USA
ISBN (Electronic)879-1-943580-23-1
ISBN (Print)978-1-5090-6229-4
Publication statusPublished - 2017
Event2017 Optical Fiber Communications Conference and Exhibition, OFC 2017 - Los Angeles, United States
Duration: 19 Mar 201723 Mar 2017


Conference2017 Optical Fiber Communications Conference and Exhibition, OFC 2017
Country/TerritoryUnited States
CityLos Angeles


  • Fourier transforms
  • Eigenvalues and eigenfunctions
  • Solids
  • Nonlinear optics
  • Scattering
  • Solitons
  • Frequency division multiplexing


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