A tolerance analysis on design parameters of parabolic and hyperbolic secant active GRIN materials for laser beam shaping purposes

作者：Gomez Varela A I^*; Bao Varela C; Flores Arias M T

来源：Laser Physics, 2014, 24(11): 115802.

DOI：10.1088/1054-660X/24/11/115802

• active material
• beam shaping
• GRadient-INdex optics
• hyperbolic secant refractive index
• parabolic refractive index
• tolerance analysis

The present paper considers two gain GRIN media, characterized by a complex parabolic and hyperbolic secant refractive index profile, for the design of uniform beam shaper systems. A general condition for beam shaping is obtained from the equation describing the evolution of the half-width of a plane Gaussian beam in the GRIN media. The simulation of the irradiance evolution of an input plane Gaussian beam-operating at 575 nm and beam waist radius of 0.45 mm-in each material is shown, in order to examine the beam shaping quality in terms of thickness of the active GRIN media and input beam wavelength.

• 出版日期2014-11