Demonstration of a diode pumped Nd,Y co-doped SrF 2 crystal based, high energy chirped pulse amplification laser system

2017 ◽  
Vol 382 ◽  
pp. 201-204 ◽  
Author(s):  
Junchi Chen ◽  
Yujie Peng ◽  
Zongxin Zhang ◽  
Hongpeng Su ◽  
Yuxin Leng ◽  
...  
2020 ◽  
Vol 8 ◽  
Author(s):  
Huijun He ◽  
Jun Yu ◽  
Wentao Zhu ◽  
Xiaoyang Guo ◽  
Cangtao Zhou ◽  
...  

Abstract This study develops a Yb:KGW dual-crystal based regenerative amplifier. The thermal lensing and gain-narrowing effects are compensated by the dual-crystal configuration. Sub-nanojoule pulses are amplified to 1.5 mJ with 9 nm spectral bandwidth and 1 kHz repetition rate using chirped pulse amplification technology. Consequently, 1.2 mJ pulses with a pulse duration of 227 fs are obtained after compression. Thanks to the cavity design, the output laser was a near diffraction limited beam with M2 around 1.1. The amplifier has the potential to boost energy above 2 mJ after compression and act as a front end for a future kilohertz terawatt-class diode-pumped Yb:KGW laser system.


2016 ◽  
Vol 41 (13) ◽  
pp. 3006 ◽  
Author(s):  
Hartmut Liebetrau ◽  
Marco Hornung ◽  
Sebastian Keppler ◽  
Marco Hellwing ◽  
Alexander Kessler ◽  
...  

2012 ◽  
Vol 48 (6) ◽  
pp. 827-835 ◽  
Author(s):  
Brendan A. Reagan ◽  
Alden H. Curtis ◽  
Keith A. Wernsing ◽  
Federico J. Furch ◽  
Bradley M. Luther ◽  
...  

Author(s):  
Marco Hornung ◽  
Hartmut Liebetrau ◽  
Andreas Seidel ◽  
Sebastian Keppler ◽  
Alexander Kessler ◽  
...  

Abstract The development, the underlying technology and the current status of the fully diode-pumped solid-state laser system POLARIS is reviewed. Currently, the POLARIS system delivers 4 J energy, 144 fs long laser pulses with an ultra-high temporal contrast of $\def \xmlpi #1{}\def \mathsfbi #1{\boldsymbol {\mathsf {#1}}}\let \le =\leqslant \let \leq =\leqslant \let \ge =\geqslant \let \geq =\geqslant \def \Pr {\mathit {Pr}}\def \Fr {\mathit {Fr}}\def \Rey {\mathit {Re}}5\times 10^{12}$ for the ASE, which is achieved using a so-called double chirped-pulse amplification scheme and cross-polarized wave generation pulse cleaning. By tightly focusing, the peak intensity exceeds $3.5\times 10^{20}\ \mathrm{W\ cm}^{-2}$ . These parameters predestine POLARIS as a scientific tool well suited for sophisticated experiments, as exemplified by presenting measurements of accelerated proton energies. Recently, an additional amplifier has been added to the laser chain. In the ramp-up phase, pulses from this amplifier are not yet compressed and have not yet reached the anticipated energy. Nevertheless, an output energy of $16.6\ \mathrm{J}$ has been achieved so far.


Author(s):  
Brendan A. Reagan ◽  
Federico J. Furch ◽  
Bradley M. Luther ◽  
Alden H. Curtis ◽  
Shaun P. Meehan ◽  
...  

Author(s):  
Xiaoming Lu ◽  
Yujie Peng ◽  
Yanyan Li ◽  
Xinliang Wang ◽  
Xiaoyang Guo ◽  
...  

We demonstrate a high-contrast, joule-level Nd:glass laser system operating at 0.5 Hz repetition rate based on a double chirped pulse amplification (CPA) scheme. By injecting high-contrast, high-energy seed pulses into the Nd:glass CPA stage, the pulse energy is amplified to 1.9 J through two optical parametric CPA stages and two Nd:glass amplifiers. The temporal contrast of compressed pulse is measured down to the level of $10^{-8}$ at tens of ps, and $10^{-10}$ near 200 ps before the main pulse, respectively.


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