tang jun, ding lei, deng qinghua, et al. Shaping of mode-locked pulse sequence in high-gain amplifier[J]. High Power Laser and Particle Beams, 2009, 21.
Citation:
tang jun, ding lei, deng qinghua, et al. Shaping of mode-locked pulse sequence in high-gain amplifier[J]. High Power Laser and Particle Beams, 2009, 21.
tang jun, ding lei, deng qinghua, et al. Shaping of mode-locked pulse sequence in high-gain amplifier[J]. High Power Laser and Particle Beams, 2009, 21.
Citation:
tang jun, ding lei, deng qinghua, et al. Shaping of mode-locked pulse sequence in high-gain amplifier[J]. High Power Laser and Particle Beams, 2009, 21.
Using optic injectors driven by laser as the electron source is advantageous in the research of free electron laser. To get the driving laser meeting certain requirement, a laser system has been designed. In the laser system, a mode-locked Nd:YVO4 laser offers the seed pulse sequence and an laser diode array pumped Nd:YAG amplification system amplifies the seed sequence. In the amplification process, the shape of the sequence envelope is aberrated due to gain saturation effect. 24 mJ fundemental wave(1 064 nm), 5.7 mJ second harmonic and 0.6 mJ fourth harmonic have been obtained respectively in the system. The aberration and the way to compensate are also studied experimentally. As a result, the ultraviolet sequence with flat-topped envelope was obtained after fourth harmonic conversion of
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