RT Journal Article T1 Laser beam profiling with extended-image-range techniques A1 Quiroga Mellado, Juan Antonio A1 González Moreno, Ricardo A1 Alonso Fernández, José A1 Bernabeu Martínez, Eusebio AB 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. PB Spie-Soc Photo-Optical Instrumentation Engineers SN 0091-3286 YR 2005 FD 2005-02 LK https://hdl.handle.net/20.500.14352/50810 UL https://hdl.handle.net/20.500.14352/50810 LA eng NO © 2005 Society of Photo-Optical Instrumentation Engineers.This research was supported by the Comisión Interministerial de Ciencia y Technología under the projects DPI-2001/1369, DPI 2001/1238, and DPI2002-02104. NO Ministerio de Ciencia y Tecnología (MCYT) DS Docta Complutense RD 8 may 2024