Abstract Free space optical communication is a potential technology that exploits the visible light frequency band for communication. In this paper, free-space link (FSOL) optimization in (VLC) used to improve channel performance signal strength and analyze effect of failures system. The data transmission reception phenomenon are established using light-emitting diode (LED) as carrier at transm...

Few-mode fiber is a significant component of free-space optical communication at the receiver to obtain achievable high coupling efficiency. A theoretical model from link few-mode proposed based on scale-adapted set Laguerre-Gaussian modes. It found that efficiency various modes behaves differently in presence atmospheric turbulence or random jitter. Based this model, optimal geometry parameter...

In order to solve the problem of high complexity polarization code construction under free-space optical communication, this paper proposes a segmented turbulent partial method, which effectively reduces while obtaining highest possible quality communication performance. The method introduces generalized technique into atmospheric strong channel, determines reliability relationship between each...

In this letter, we present a non-mechanical 2D beam-steering system suitable for optical wireless communication. Steering is achieved using polarization gratings combined with nematic liquid crystal cells operating as voltage-controlled shifters. These steering elements are holographic diffuser matched to the discrete angles of grating, enabling continuous angular coverage. Beam-steering also u...

Two major performance degrading factors in free space optical communication systems are rainfall and atmospheric turbulence. We study the outage probability and bit-error rate for free-space communication links with spatial diversity and Gaussian-Schell electromagnetism beams over the raining turbulence fading channels by double inverse Gaussian distribution proposed in this paper. Assuming int...