High power TEM00 picosecond output based on a Nd:GdVO4 discrete path Innoslab amplifier

摘要

We propose a technique for eliminating self-lasing and suppressing amplified spontaneous emission in a partially pumped slab amplifier with a discrete path configuration. High gain character and homogeneous gain distribution were well preserved with the proposed scheme. Based on the Nd:GdVO4 crystal, a 99W, 12.4 ps TEM00 laser output was achieved with a 42% extraction efficiency. The diffraction limited beam quality remained undisturbed after amplification with M-x(2) = 1.09 and M-y(2) = 1.07 in the orthogonal directions. (C) 2016 Optical Society of America