Coherent multimode OAM superpositions for multidimensional modulation

Jaime A. Anguita, Joaquin Herreros, Ivan B Djordjevic

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The generation, propagation, and detection of high-quality and coherently superimposed optical vortices, carrying two or more orbital angular momentum (OAM) states, is experimentally demonstrated using an optical arrangement based on spatial light modulators. We compare our results with numerical simulations and show that, in the context of turbulence-free wireless optical communication (indoor or satellite), individual OAM state identification at the receiver of an OAM-modulated system can be achieved with good precision, to accommodate for high-dimensional OAM modulation architectures. We apply our results to the simulation of a communication system using low-density parity-check-coded modulation that considers optimal signal constellation design in a channel that includes OAM crosstalk induced by realistic (imperfect) detection.

Original languageEnglish (US)
Article number6755504
JournalIEEE Photonics Journal
Volume6
Issue number2
DOIs
StatePublished - Apr 2014

Fingerprint

Angular momentum
angular momentum
Modulation
modulation
orbitals
constellations
Optical communication
light modulators
Crosstalk
crosstalk
optical communication
telecommunication
Communication systems
parity
Vortex flow
Turbulence
simulation
receivers
turbulence
Satellites

Keywords

  • data-center communications
  • free-space optical communications
  • optical modulation
  • optical vortices
  • Orbital angular momentum
  • satellite communications

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

Cite this

Coherent multimode OAM superpositions for multidimensional modulation. / Anguita, Jaime A.; Herreros, Joaquin; Djordjevic, Ivan B.

In: IEEE Photonics Journal, Vol. 6, No. 2, 6755504, 04.2014.

Research output: Contribution to journalArticle

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