Investigating Wavelength Dependency of Terrestrial Free Space Optical Communication Link

Authors(2) :-Harjeevan Singh, Mohit Arora

Free space optical communication involves fiber-less optical based data transmission using visible and infrared bands of the spectrum. This technology has gained huge popularity in the past decades. In recent past a lot of research has been carried out to improve the FSO link performance which is seriously affected due to atmospheric inconsistencies. This paper investigates the performance of free space optical link for different wavelengths. As the laser beam propagates through atmosphere it undergoes attenuation and this attenuation has been calculated for different wavelengths. Moreover the attenuation and scattering due to haze has been studied for different wavelengths. The wavelengths used for this research work are 10 µm, 1.55 µm and 0.85 µm. Finally bit error rate performance of DPSK modulation has been investigated for above mentioned wavelengths and atmospheric turbulence has been modeled using gamma-gamma model. It has been observed that higher wavelengths show less attenuation and moreover the BER performance of DPSK modulation techniques for higher wavelengths is better than that of lower wavelengths.

Authors and Affiliations

Harjeevan Singh
Department of ECE, Chandigarh University, Gharuan, Mohali, Punjab, India
Mohit Arora
Department of ECE, Chandigarh University, Gharuan, Mohali, Punjab, India

FSO, BER, DPSK, Wavelength, Atmospheric Turbulence

  1. H. Willebrand and B.S Ghuman,Free Space Optocs: Enabling Optical Connectivity in today’s network.Indianapolis:SAMS publishing,2002.
  2. Isaac I. Kim,Bruce McArthur, and E.Korevaar, “Comparison of laser beam propagation at 785 nm and 1550 nm in fog and haze for optical wireless communication,”SPIE Proceeding:Optical Wireless Communications III,vol. 4214,pp. 26-37,2001.
  3. D. Kedar and S. Arnon, “Optical wireless communication through fog in the presence of pointing errors,”Applied Optics,vol. 42,pp. 4946-4954,Aug. 2003.
  4. P.W. Kruse and al., "Elements of infrared technology: Generation, transmission and detection", J. Wiley and sons, New York, 1962.
  5. H. Weichel, Laser Beam Propagation in the Atmosphere, Vol. TT3, SPIE Press, Bellingham, WA. 1990.
  6. D. Killinger, “Free space optics for laser communication through the air,”Opt. Photon. News,vol. 13,no. 3,pp. 36-42,Oct. 2002.
  7. L.C. Andrews,R.L. Phillips,and C.Y. Hopen,Laser beam scintillation with applications,Bellingham:SPIE,2001.
  8. E.D. Hinkley, “Laser Monitoring of the Atmosphere” ISBN:354007743.
  9. W.O Popoola,Z.Ghassemlooy,and E. Leitgeb, “Free-space optical communication using subcarrier modulation in gamma-gamma atmospheric turbulence,” in 9th International Conference on Transparent Optical Networks(ICTON ’07) Rome Italy,Vol. 3,pp. 156-16-,2007.
  10. N. S. Kopeika and J. Bordogna, "Background noise in optical communication systems," Proceedings of the IEEE, vol. 58, pp. 1571-1577, 1970
  11. W. K. Pratt, Laser Communication Systems, 1st ed. New York: John Wiley & Sons, Inc., 1969.
  12. W.O. Popoola,Z. Ghassemblooy and E. Leitgeb, “BER Performance of DPSK Subcarrier Modulated Free Space Optics in fully Developed Speckle”,IEEE-CSNDSP,Graz,Austria,pp. 273-277,23-25 July 2008.
  13. W. O. Popoola, Z. Ghassemlooy, and E. Leitgeb , "Free space optical communication in atmospheric turbulence using DPSK subcarrier modulation," in Ninth International Symposium on Communication Theory and Applications ISCTA’07,Ambleside, Lake District,UK,2007

Publication Details

Published in : Volume 2 | Issue 2 | March-April 2016
Date of Publication : 2016-05-05
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 328-333
Manuscript Number : IJSRST1622123
Publisher : Technoscience Academy

Print ISSN : 2395-6011, Online ISSN : 2395-602X

Cite This Article :

Harjeevan Singh, Mohit Arora, " Investigating Wavelength Dependency of Terrestrial Free Space Optical Communication Link , International Journal of Scientific Research in Science and Technology(IJSRST), Print ISSN : 2395-6011, Online ISSN : 2395-602X, Volume 2, Issue 2, pp.328-333, March-April-2016. Available at doi : 10.32628/IJSRST1622123
Journal URL : http://ijsrst.com/IJSRST1622123

Article Preview

Contact Us