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Proceedings Paper

Laser beam divergence meter for lidar systems based on integral optics elements
Author(s): Alexander N. Morozov
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Paper 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.

Paper Details

Date Published: 1 November 2006
PDF: 10 pages
Proc. SPIE 6522, Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics, 65220I (1 November 2006); doi: 10.1117/12.723042
Show Author Affiliations
Alexander N. Morozov, Siberian Physical and Technical Institute (Russia)


Published in SPIE Proceedings Vol. 6522:
Thirteenth Joint International Symposium on Atmospheric and Ocean Optics/ Atmospheric Physics

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