Smoke attenuation in free space optical communication under laboratory controlled conditions

Muhammad Ijaz, Zabih Ghassemlooy, Asghare Gholami, Xuan Tang

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

2 Citations (Scopus)

Abstract

In this paper, we present the experimental results on smoke attenuation for a free space optical communication link. The smoke is generated in an indoor atmospheric chamber under the laboratory controlled conditions. Theoretical simulations are carried out in order to verify that the homogeneity of smoke inside the atmospheric chamber can be improved by increasing the link length. This is achieved by the optical beam being bouncing back and forth between optical mirrors. The improved homogeneity in smoke enhances the accuracy in evaluating the visibility V to characterize smoke and thus the resultant attenuation of smoke. The experimental results for attenuation of FSO communication systems operating at the visible and near infrared (NIR) wavelengths (0.6 μm <; λ <; 1.6 μm) in the controlled laboratory based smoke environment are also presented and compared to the theoretical smoke model. Results indicate that smoke attenuation is wavelength dependent for dense smoke conditions for V <; 0.5 km. Smoke attenuation is higher at the visible wavelength than the near infrared wavelength. The measured attenuation of smoke is almost 90 dB/km for the visible range and 43 dB/km at the NIR wavelength range for V = 0.185 km.

Original languageEnglish
Title of host publication2014 7th International Symposium on Telecommunications, IST 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages758-762
Number of pages5
ISBN (Electronic)9781479953592
DOIs
Publication statusPublished - 31 Dec 2014
Event2014 7th International Symposium on Telecommunications, IST 2014 - Tehran, Iran, Islamic Republic of
Duration: 9 Sep 201411 Sep 2014

Publication series

Name2014 7th International Symposium on Telecommunications, IST 2014

Conference

Conference2014 7th International Symposium on Telecommunications, IST 2014
CountryIran, Islamic Republic of
CityTehran
Period9/09/1411/09/14

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