Open AccessMegahertz-level, high-power picosecond Nd:LuVO_4 regenerative amplifier free of period doubling
Author(s) -
Peng Gao,
Hua Lin,
Jinfeng Li,
Jie Guo,
Haohai Yu,
Huaijin Zhang,
Xiaoyan Liang
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.013963
Subject(s) - picosecond , optics , amplifier , pulse (music) , materials science , pulse duration , regenerative amplification , laser , power (physics) , optoelectronics , optical amplifier , physics , cmos , detector , quantum mechanics
We report on a high repetition rate, high-power picosecond Nd:LuVO 4 regenerative amplifier. Period doubling caused energy instability was eliminated at megahertz-level repetition rate with the modified seeding source. A multi-pass cell was used to improve the seed pulse energy to achieve complete suppression of the onset of bifurcation. At a maximum repetition rate of 1.43 MHz, the system produced 7.0-ps-long pulses with an average output power of 25.1 W, corresponding to a pulse energy of 17.6 μJ. At 100 kHz, the pulse energy increased to 205 μJ with an average power of 20.5 W. Moreover, the injected pulses with pulse duration of 5.1 ps broadened to 8.9 ps because of gain narrowing in the amplifier.