Adaptive SLM-based compensation of intermodal interference in few-mode optical fibers

Vladimir S. Lyubopytov, Valeriy Kh Bagmanov, Albert Kh Sultanov

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

21 Citations (Scopus)

Abstract

Transmission of optical beams with phase front vorticity through relevant distances in optical fibers poses a problem of time-dependent intermodal interference with random complex coefficients. In this paper we propose a method for compensation of interference between LP-modes, propagating through the optical fiber. To implement optical-domain modal filtering, reconfigurable diffractive optical element matched with particular modes is considered. Such an element may be encoded as phase-only hologram by means of SLM. With this approach modes can be separated spatially in the compensating diffractive element far field and handled independently with corresponding complex coefficients. Efficiency of the proposed method is confirmed by computer simulation results.

Original languageEnglish
Title of host publicationOptics and Photonics for Information Processing VIII
EditorsAbdul A. S. Awwal, Khan M. Iftekharuddin, Andres Marquez, Mohammad A. Matin
PublisherSPIE
ISBN (Electronic)9781628412437
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event8th Conference of Optics and Photonics for Information Processing - San Diego, United States
Duration: 18 Aug 201420 Aug 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9216
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference8th Conference of Optics and Photonics for Information Processing
Country/TerritoryUnited States
CitySan Diego
Period18/08/1420/08/14

Keywords

  • Diffractive optical elements
  • Modal dispersion
  • Mode coupling
  • Mode division multiplexing
  • Optical signal processing
  • Principal mode
  • Spatial light modulator
  • Vortex beam

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