Characterization of Free-space Gaussian Beam Propagation and Recent Developments of FSO Communication Technology: A Review

Abstract: In typical scenarios, the laser beam diverges significantly when transitioning from the fiber into free space. To minimize divergence in wide range Wireless Optical Communication (WOC) applications and extend the potential link range, the impact of beam spread is reduced by collimating the beam using an appropriate collimating lens positioned from the transmission fiber endpoint at its focal length. The beam is refocused back into the fiber using a comparable lens close to the receiving fiber end point. This report delves into the concepts relevant for studying a similar free-space optical communication system and theoretically optimizing the received beam spot size to ensure maximum efficiency of the received data signal. It's crucial to consider atmospheric conditions when studying a real system due to their significant impact. Also the recent advancements and developments have been reviewed and discussed in this work. Keywords: Free Space Optical Communication, Beam divergence, Gaussian beam, beam stability, Error correction. Title: Characterization of Free-space Gaussian Beam Propagation and Recent Developments of FSO Communication Technology: A Review Author: Joseph George Chalil, Shachi Kadam, Chinchu Joseph, K.J. Kulkarni, A.A.Bazil Raj International Journal of Engineering Research and Reviews ISSN 2348-697X (Online) Vol. 12, Issue 3, July 2024 - September 2024 Page No: 1-24 Research Publish Journals Website: www.researchpublish.com Published Date: 14-August-2024 DOI: https://doi.org/10.5281/zenodo.13318940 Paper Download Link (Source) https://www.researchpublish.com/papers/characterization-of-free-space-gaussian-beam-propagation-and-recent-developments-of-fso-communication-technology-a-review