We propose a new technique for laser beam shaping namely the reshaping of the laser beam into a desirable beam profile by the use of a laser amplifier with a pump beam that has a modified intensity profile. We developed the analytical formula which describes the transformation of the seed beam into the desired beam profile in the amplifiers small signal regime. In the case were high pump power saturated the laser crystal we have shown the method of reshaping of the seed beam into desirable beam by a numerically obtained pump intensity profile. The method can also be extended for shaped seed beams with fixed profile pump.
Reference:
Litvin, I.A. and Collet, O.J.P. 2015. Digital generation of shape-invariant Bessel-like beams. Optics Express, vol. 23(6): 7312-7319
Litvin, I. A., & Collet, O. J. (2015). Digital generation of shape-invariant Bessel-like beams. http://hdl.handle.net/10204/10472
Litvin, Igor A, and Oliver JP Collet "Digital generation of shape-invariant Bessel-like beams." (2015) http://hdl.handle.net/10204/10472
Litvin IA, Collet OJ. Digital generation of shape-invariant Bessel-like beams. 2015; http://hdl.handle.net/10204/10472.
