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Proceedings Paper

Far-field pattern of laser diodes as function of the relative atmospheric humidity
Author(s): Jose Cabrita A. Freitas; Fernando D. Carvalho; Fernando Carvalho Rodrigues; Manuel Adler Abreu; Joao Paulo Silv Marcal
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Paper Abstract

The radiation pattern of a collimated diode laser that was used to transmit messages between two points far apart is considered as a function of a driving current, pulse repetition rate, and relative humidity along the propagation path. It is shown that the spatial and energy distribution characteristics of the laser beam projected over long distances are affected by the humidity and temperature conditions of the atmosphere.

Paper Details

Date Published: 1 March 1991
PDF: 8 pages
Proc. SPIE 1399, Optical Systems in Adverse Environments, (1 March 1991); doi: 10.1117/12.26104
Show Author Affiliations
Jose Cabrita A. Freitas, LNETI (Portugal)
Fernando D. Carvalho, LNETI (Portugal)
Fernando Carvalho Rodrigues, LNETI (Portugal)
Manuel Adler Abreu, LNETI (Portugal)
Joao Paulo Silv Marcal, LNETI (Portugal)


Published in SPIE Proceedings Vol. 1399:
Optical Systems in Adverse Environments
Soon Fatt Yoon; M. H. Kuok; Donald E. Silva, Editor(s)

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