Laser beam profiling with extended-image-range techniques | Zendy

R. Gonza ́lez-Moreno | Zendy

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Laser beam profiling with extended-image-range techniques

Author(s) -

R. Gonza ́lez-Moreno

Publication year - 2005

Publication title -

optical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.357

H-Index - 105

eISSN - 1560-2303

pISSN - 0091-3286

DOI - 10.1117/1.1840931

Subject(s) - optics , laser , range (aeronautics) , profiling (computer programming) , irradiance , dynamic range , image processing , laser beams , computer science , optical engineering , high dynamic range , image (mathematics) , computer vision , materials science , physics , operating system , composite material

A method to enlarge the dynamic range of a CCD-based laser beam profiler is presented. The method is based on extended-image-range techniques. The algorithm that generates the extended-irradiance-range image is described in detail. An equivalent dynamic range and number of bits are defined and computed for the new profiling system. To test the method, experimental measurements of the principal widths of the output beam from a single-mode optical fiber have been made, as well as the Fraunhofer diffraction pattern of a 200-μm m pinhole back-illuminated by a HeNe laser

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