Improving bandwidth for line-of-sight optical wireless in turbulent air by using phase conjugation

Alastair D. McAulay; Jianghui Li

doi:10.1117/12.372821

13 December 1999 Improving bandwidth for line-of-sight optical wireless in turbulent air by using phase conjugation

Alastair D. McAulay, Jianghui Li

Author Affiliations +

Proceedings Volume 3850, Optical Wireless Communications II; (1999) https://doi.org/10.1117/12.372821
Event: Photonics East '99, 1999, Boston, MA, United States

Abstract

An optical link over several kilometers between buildings or remote sites will have significantly reduced bandwidth in the presence of turbulent air, such as may be caused by convection from a heated earth surface. Bandwidth is decreased by amplitude and phase fluctuations due to the turbulence. This paper investigates the performance improvement in bandwidth by using a phase conjugate reflected beam for signal transmission. Weak fluctuations, consistent with the Rytov transformation, are assumed. A computer simulation is developed that uses a statistical model of the turbulent channel to assess the effectiveness of this approach.

Citation Download Citation

Alastair D. McAulay and Jianghui Li "Improving bandwidth for line-of-sight optical wireless in turbulent air by using phase conjugation", Proc. SPIE 3850, Optical Wireless Communications II, (13 December 1999); https://doi.org/10.1117/12.372821

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