On the Performance of Acousto Optical Modulators–Free Space Optical Wireless Communication Systems over Negative Exponential Turbulent Channel

  • Raed MeslehEmail author
  • Ayat Olaimat
  • Ala Khalifeh
Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 263)


A novel free space optical (FSO) wireless communication system is proposed very recently utilizing acousto optical modulator (AOM) to externally modulate the laser beam [1]. The idea is to control the diffracted angle of a laser beam incident to an AOM through varying the acoustic frequency propagating inside the AOM. The receiver with multiple photo diodes, spatially distributed and aligned to the preplanned diffracted angles, receive the laser signal and retrieve the transmitted bits. In this paper, we study the performance of AOM–FSO system over negative exponential turbulent channel. A closed-form expression for the average bit error probability is derived and shown to be precise over wide range of channel and system parameters. The performance of the system is compared to the ideal case of no fading and log normal channel.


Acousto Optical Modulator (AOM) Free Space Optics (FSO) Performance analysis Wireless communication Negative exponential channel 



The work in this paper was supported from the Scientific Research Foundation at the Ministry of Higher Education in Amman, Jordan under grant number ICT/1/9/2016.


  1. 1.
    Mesleh, R., Al-Oleimat, A.: Acousto-optical modulators for free space optical wireless communication systems. J. Opt. Commun. Netw. 10(5), 515–522 (2018)CrossRefGoogle Scholar
  2. 2.
    Ghassemlooy, Z., Popoola, W., Rajbhandari, S.: Optical Wireless Communications: System and Channel Modelling with MATLAB. CRC Press, Boca Raton (2017)Google Scholar
  3. 3.
    CISCO, Cisco visual networking index: Global mobile data traffic forecast update, 2015–2020. CISCO, White paper, February 2016Google Scholar
  4. 4.
    Elgala, H., Mesleh, R., Haas, H.: Indoor optical wireless communication: potential and state-of-the-art. IEEE Commun. Mag. 49(9), 56–62 (2011). ISSN 0163–6804CrossRefGoogle Scholar
  5. 5.
    Abaza, M., Mesleh, R., Mansour, A., el Hadi Aggoune: Performance analysis of miso multi-hop FSO links over log-normal channels with fog and beam divergence attenuations. Optics Commun. 334, 247–252 (2015). Scholar
  6. 6.
    Lee, E.J., Chan, V.W.S.: Part 1: optical communication over the clear turbulent atmospheric channel using diversity. IEEE J. Sel. Areas Commun. 22(9), 1896–1906 (2004)CrossRefGoogle Scholar
  7. 7.
    Arnon, S.: Effects of atmospheric turbulence and building sway on optical wireless-communication systems. Opt. Lett. 28, 129–131 (2003)CrossRefGoogle Scholar
  8. 8.
    Khalighi, M.A., Uysal, M.: Survey on free space optical communication: a communication theory perspective. IEEE Commun. Surv. Tutor. 16(4), 2231–2258 (2014)CrossRefGoogle Scholar
  9. 9.
    Khalighi, M.-A., Schwartz, N., Aitamer, N., Bourennane, S.: Fading reduction by aperture averaging and spatial diversity in optical wireless systems. J. Opt. Commun. Netw. 1(6), 580–593 (2009)CrossRefGoogle Scholar
  10. 10.
    Chang, I.C.: Acousto optic devices and applications. IEEE Trans. Sonics Ultrason. 23(1), 2–21 (1976)CrossRefGoogle Scholar
  11. 11.
    Saleh, B.E.A., Teich, M.C.: Fundamentals of Photonics. Wiley, New York (1991). chapter 12Google Scholar
  12. 12.
    Eghbal, M., Abouei, J.: Security enhancement in free-space optics using acousto-optic deflectors. IEEE/OSA J. Opt. Commun. Netw. 6(8), 684–694 (2014)CrossRefGoogle Scholar
  13. 13.
    Nikulin, V.V., Khandekar, R., Sofka, J., Tartakovsky, G.: Acousto-optic pointing and tracking systems for free-space laser communications. In: Proceedings of SPIE, vol. 5892, no. 589216, August 2005Google Scholar
  14. 14.
    Ghosh, A.K., Verma, P., Cheng, S., Huck, R.C., Chatterjee, M.R., Al-Saedi, M.: Design of acousto-optic chaos based secure free-space optical communication links. In: Proceedings of SPIE, vol. 7464, no. 74640l (2009)Google Scholar
  15. 15.
    Casella, G., Berger, R.L.: Statistical Inference, 2nd edn. Duxbury, Pacific Grove (2002)zbMATHGoogle Scholar
  16. 16.
    Kadhim, et al.: Characterization study and simulation of MIMO FSO communication under different atmospheric channel. Int. J. Innov. Sci. Eng. Technol. 3(8) (2016). ISSN (Online) 2348 – 7968Google Scholar

Copyright information

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2019

Authors and Affiliations

  1. 1.Department of Electrical and Communication Engineering, School of Electrical Engineering and Information TechnologyGerman Jordanian UniversityAmmanJordan

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