Open AccessComparison of attenuation coefficient at different lasers 632, 785nm, 1310nm and 1550nm in Dust for optical wireless
Author(s) -
Mariam M. Abud,
Janan A. Akhlati,
Asmaa M. Roof.
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1795/1/012014
Subject(s) - laser , particulates , attenuation , optics , attenuation coefficient , visibility , materials science , transmittance , optoelectronics , chemistry , physics , organic chemistry
FSO is the main communication in the world. The air is composed of dust, sand, elemental loading and mineral particulates. The minerals particulates the particulates are majorly of two categories: A. Coarse Particulates (2.5-10 micrometer) B. Fine Particulates (less than 2.5 micrometer) coarse aerosol particulate is determined by crustal sources like dust. Methodology used FSO include a laser represent of transmitter through atmosphere to spectrum analyzer (receiver). Transmitter uses many laser sources (632.8, 780, 1310, 1550 nm). Results as shown the transmittance at different lasers and calculated the visibility caused by decreases of total attenuation coefficient with increasing to the light beam propagation. In this paper the visibility measurements for using different laser according laser transmissometer at short distance in the light and heavy dust around this distance between transmitter and receiver, indicate that results are appropriate when choosing a laser window of 632.8 and 1550 nm.