Characterization of orbital angular momentum-multiplexed FSO channel in the presence of pointing errors
Type :
Conference paper
Publication Status :
Published
Access :
restrictedAccess
Abstract
Free space optical communication (FSO) uses laser transmitters at near-infrared wavelengths for line-of-sight wireless communication. Through the use of advanced laser beams instead of the conventional Gaussian-shaped beam, orbital angular momentum (OAM) allows taking advantage of higher degrees of freedom in the FSO link design. OAM enables the simultaneous transmission of multiple data streams due to the orthogonality between beams of different spatial modes. However, in practice, atmospheric turbulence and pointing errors may destroy the orthogonality. Pointing errors may result in crosstalk between modes and power disparities as a result of shifting the received beam. In this paper, we consider Laguerre-Gaussian beams and investigate the effect of random pointing errors on crosstalk coefficients.
Source :
2023 31st Signal Processing and Communications Applications Conference (SIU)
Date :
2023
Publisher :
IEEE
Collections
Share this page