1 November 2006 Laser beam divergence meter for lidar systems based on integral optics elements
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Proceedings Volume 6522, Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics; 65220I (2006) https://doi.org/10.1117/12.723042
Event: Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics, 2006, Tomsk, Russian Federation
Abstract
In the work the results of physical principles development and consequent production of a divergence meter (DM) model with use of planar optical waveguides are presented. The DM operation principle is based on measuring of angular spectra of "dark" or "light" m-lines, i.e. traces of excitation of waveguide modes of multimode planar waveguide. Comparative studies of divergence values measured by DM model and obtained by photographic methods, namely by focal spot technique (FS) as well as by two-section technique (TS) have been performed. All the laser beam divergence values measured by waveguide detectors lie within error limits TS and FS methods. Furthermore the divergence error values measured with the help of DM are less than divergence value errors, measured by TS and FS methods. The DM model measurement range lies within (formula available in manuscript) radian in spectral range λ = 600 - 1100 nm. All the measurements were conducted on serial lasers.
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Alexander N. Morozov, Alexander N. Morozov, } "Laser beam divergence meter for lidar systems based on integral optics elements", Proc. SPIE 6522, Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics, 65220I (1 November 2006); doi: 10.1117/12.723042; https://doi.org/10.1117/12.723042
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