A versatile 10-TW laser system with robust passive controls to achieve high stability and spatiotemporal quality

Highly-efficient 20 TW Ti:sapphire laser system using optimized diverging beams for laser wakefield acceleration experiments

“…Chambaret et al used a diverging beam by using a concave lens before the last pass in the second power amplifier and increased the output power [9]. Other groups have also used a diverging beam to increase the conversion efficiency by compensating the thermal lensing effect [10,12]. These experimental results imply that the conversion efficiency is strongly affected by the divergence of a beam.…”

Tomography of the Injection and Acceleration Processes of Monoenergetic Electrons in a Laser Wakefield Accelerator

“…[15], was used for this experiment. After the amplifier chain of the laser system the laser beam with a clear aperture of ∼4 cm in diameter was split into two, each going through an energy tuner and a pulse compressor.…”

Compact high stable passively Q-switched Nd:YVO4 laser with Cr4+:YAG

“…Ways to reduced the temperature dependence of the output energy has been studied by Lee, Kangin [16] in 2013 and the laser pulse energy's change had been reported with temperature from 25 to 150 o C by T. Dascalu [17] in 2009. Output rate of the cavity resonator is another vital valuable factor to produce high stable passively Q-switched waveform and control the characteristic of pulse [18][19][20]. However there is few reports on the variation of the laser pulse width and the repetation rate with the temperature of the laser crystal.…”

“…Using the output coupler with T 0 =10%, 15% and 27%, the pulse repetition rate was18.5, 18.58, 18, 17.244, 15.7kHz; the pulse widths were 5.14, 5.18, 5.728, 7.07, 7.623; 5.48, 5.82, 6.67, 8.82, 9.28 and 6.264, 6.951, 7.574, 10.215, 13.3ns, respectively with the temperature of crystal varying from 36 o C to 24 o C(In…”