15 September 1993 Atmospheric extinction and scattering effects on laser rangefinders at eyesafe wavelengths
Author Affiliations +
Abstract
Extinction of laser rangefinder (LRF) pulses by the atmosphere depends on the LRF wavelength, weather conditions, and the aerosol concentration along the optical path. The total atmospheric extinction (alpha) ((lambda) ) is the sum of the molecular and aerosol contributions, (alpha) m((lambda) ) and (alpha) a((lambda) ). We present simple expressions for (alpha) m((lambda) ) and (alpha) a((lambda) ) for the LRF sources: Er:glass, Ho:YAG, and CO2 which operate near 1.54, 2.1, and 10.6 micrometers respectively. Also included are results for Nd:YAG which may be made to lase at the eyesafe wavelength of 1.444 micrometers . The expressions give an estimate of (alpha) ((lambda) ) as a function of standard meteorological parameters, assuming horizontal beam propagation. The effect of forward scattering on the received LRF signal is also discussed.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Daniel L. Hutt, Daniel L. Hutt, Jean-Marc Theriault, Jean-Marc Theriault, Vincent Larochelle, Vincent Larochelle, Deni Bonnier, Deni Bonnier, } "Atmospheric extinction and scattering effects on laser rangefinders at eyesafe wavelengths", Proc. SPIE 1968, Atmospheric Propagation and Remote Sensing II, (15 September 1993); doi: 10.1117/12.154887; https://doi.org/10.1117/12.154887
PROCEEDINGS
13 PAGES


SHARE
Back to Top