Open Access0.3% energy stability, 100-millijoule-class, Ti:sapphire chirped-pulse eight-pass amplification system
Author(s) -
Shigeki Tokita,
Masaki Hashida,
Shinichiro Masuno,
S. Namba,
Shuji Shimizu
Publication year - 2008
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.014875
Subject(s) - amplifier , optics , chirped pulse amplification , materials science , ti:sapphire laser , sapphire , regenerative amplification , laser , pulse (music) , optical amplifier , ultrashort pulse , optoelectronics , physics , cmos , detector
Highly stable operation of a two-stage multipass Ti:sapphire amplifier (a four-pass pre-amplifier and a four-pass power amplifier) for a 100-mJ-class chirped-pulse amplification system has been demonstrated by passive stabilization. By optimizing the ratio of pump energies to the two amplifiers and the optical losses artificially inserted into the second power amplifier, a root-mean-square fluctuation in pulse energy of 0.3% was achieved, which was 5 times lower than that of the pump laser. This is the lowest pulse-to-pulse fluctuation, to the best of our knowledge, obtained by the 100-mJ-class Ti:sapphire amplifiers.