Bandwidth enhancement of wireless optical communication link using a near-infrared laser over turbid underwater channel

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

8 Scopus citations

Abstract

Underwater wireless optical communication (UWOC) has been widely studied as a promising alternative to establish reliable short-range marine communication links. Microscopic particulates suspended in various ocean, harbor and natural waters will alter the propagation characteristics of the optical signals underwater. In this paper, we demonstrate a gigabit nearinfrared (NIR)-based UWOC link using an 808-nm laser diode, to examine the feasibility of the proposed system in mitigating the particle scattering effect over turbid waters. We show that the NIR wavelengths presents greater resilience to the aqueous suspension of these micro-sized particles with a smaller scattering effect due to its longer wavelength, as evident by the smaller variations in the optical beam transmittance. It is also observed that the error performance is improved at higher concentrations albeit the significant reduction in received signal power. We further demonstrate that the overall frequency response of the system exhibits a bandwidth enhancement up to a few tens of MHz with increasing concentrations.

Original languageEnglish (US)
Title of host publication2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-5
Number of pages5
ISBN (Electronic)9781509062904
DOIs
StatePublished - Nov 22 2017
Event2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017 - Singapore, Singapore
Duration: Jul 31 2017Aug 4 2017

Publication series

Name2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
Volume2017-January

Conference

Conference2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017
Country/TerritorySingapore
CitySingapore
Period07/31/1708/4/17

Bibliographical note

Publisher Copyright:
© 2017 IEEE. All rights reserved.

Keywords

  • Frequency response
  • Particle scattering
  • Turbid media
  • Underwater wireless optical communication
  • Water absorption

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Networks and Communications

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