Abstract
We used a pair of diamond-turned CaF2 aspheres to convert the pure TEM00 Gaussian spatial profile output of a diode-pumped Nd:YAG laser oscillator into a super-Gaussian intensity profile with a nearly flat phase front. The resulting super-Gaussian beam was nearly diffraction limited with an of 1.75; in the near field the 5-mm diameter beam retained a nominally flat-top intensity distribution without significant diffraction peaks for an excellent working distance of more than 50 cm. A 10% improvement in amplifier-energy extraction obtained by use of the reshaped beam is demonstrated.
© 1997 Optical Society of America
Full Article | PDF ArticleMore Like This
Jeffrey J. Kasinski and Ralph L. Burnham
Appl. Opt. 35(30) 5949-5954 (1996)
Evgeny G. Churin
Opt. Lett. 24(9) 620-621 (1999)
J. Adamonis, A. Aleknavičius, K. Michailovas, S. Balickas, V. Petrauskienė, T. Gertus, and A. Michailovas
Appl. Opt. 55(28) 8007-8015 (2016)