Influence of Diverse Atmospheric Conditions on Optical Properties of a Pulse Laser in a Time-of-Flight Laser Range Finder

Title
Influence of Diverse Atmospheric Conditions on Optical Properties of a Pulse Laser in a Time-of-Flight Laser Range Finder
Authors
한영근
Keywords
Refractive index change; Time delay; Optical absorption in air; Pulse laser; Laser rangefinder
Issue Date
2015-02
Publisher
OPTICAL SOC KOREA
Citation
JOURNAL OF THE OPTICAL SOCIETY OF KOREA, v. 19, NO 1, Page. 1-6
Abstract
We investigate the propagation characteristics of a pulse laser in a time-of-flight laser range finder (TOF-LRF) system with variations in atmospheric conditions, such as temperature, pressure, relative humidity, and the concentration of CO2. The measurement error of distance related with the group velocity change in the TOF-LRF system is analyzed by considering the refractive index of the standard atmosphere with variations in atmospheric conditions. The dependence of the pulse width broadening induced by chromatic dispersion of the standard atmosphere on the operating wavelength and the initial pulse width of the light sources is discussed. The transmission of air with variations in the relative humidity or the concentration of CO2 is analyzed by using different values of absorption coefficients depending on the operation wavelength of the light source in the TOF-LRF system.
URI
https://www.osapublishing.org/josk/abstract.cfm?uri=josk-19-1-1http://hdl.handle.net/20.500.11754/22176
ISSN
1226-4776; 2093-6885
DOI
http://dx.doi.org/10.3807/JOSK.2015.19.1.001
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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