Coherent free space optics communications over the maritime atmosphere with use of adaptive optics for beam wavefront correction

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

We evaluate the performance of the coherent free space optics (FSO) employing quadrature array phase-shift keying (QPSK) modulation over the maritime atmosphere with atmospheric turbulence compensated by use of adaptive optics (AO). We have established a comprehensive FSO channel model for maritime conditions and also made a comprehensive comparison of performance between the maritime and terrestrial atmospheric links. The FSO links are modeled based on the intensity attenuation resulting from scattering and absorption effects, the log-amplitude fluctuations, and the phase distortions induced by turbulence. The obtained results show that the FSO system performance measured by the bit-error-rate (BER) can be significantly improved when the optimization of the AO system is achieved. Also, we find that the higher BER is observed in the maritime FSO channel with atmospheric turbulence, as compared to the terrestrial FSO systems if they experience the same turbulence strength.

Original languageEnglish (US)
Pages (from-to)1453-1462
Number of pages10
JournalApplied Optics
Volume54
Issue number6
DOIs
StatePublished - Feb 20 2015

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Space optics
Adaptive optics
Wavefronts
adaptive optics
communication
optics
atmospheres
Communication
Atmospheric turbulence
atmospheric turbulence
bit error rate
Bit error rate
Turbulence
turbulence
phase shift keying
Phase shift keying
quadratures
attenuation
Modulation
Scattering

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Coherent free space optics communications over the maritime atmosphere with use of adaptive optics for beam wavefront correction. / Li, Ming; Cvijetic, Milorad.

In: Applied Optics, Vol. 54, No. 6, 20.02.2015, p. 1453-1462.

Research output: Contribution to journalArticle

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