MTW-OPAL—A Technology Development Platform for Ultra-Intense All-OPCPA Systems

Abstract

Activation results will be presented for MTW-OPAL, a new all-OPCPA laser using technologies suitable for kilojoule-femtosecond systems, highlighting 140-nm-wide amplification in DKDP to >10 J with 30% efficiency and subsequent recompression to 20 fs.

A novel small-scale self-focusing suppression method for the post-compression in high peak power lasers

“…Figure 4(a) shows that the spatial dispersion length d0 is proportional to the difference between L1 and L2, and Figure 4(b) shows that the PTA drastically reduces with (L2−L1) increases. The numerical simulation agrees well with the theoretical prediction (blue curve), which is deduced using the Equations (8,21,27,28,32) in [27]:…”

“…Thanks to the developments of chirped pulse amplification (CPA) and optical parametric chirped pulse amplification (OPCPA) [1][2] techniques, the laser peak power has reached 10 PW level, and the corresponding laser focused peak intensity has reached 10 22 W/cm 2 and even 10 23 W/cm 2 [3][4][5][6]. Such super-intense lasers can bring several significant breakthroughs and advance for high-field sciences [7][8]. Nowadays, some countries have also commissioned the construction of 100 PW level ultrahigh peak power lasers [9][10][11][12], to pursue higher laser intensity and hence to explore frontier sciences.…”

13.4 fs, 0.1 Hz OPCPA Front End for the 100 PW-Class Laser Facility

“…The EP OPAL project at the University of Rochester was aimed at building a 75 PW laser by using DKDP crystal centered at 910 nm [12]. At present, the technology development platform of the EP OPAL facility has realized a single-shot 21.5 fs/ 350 TW output by using 70% deuterated DKDP crystals [13]. Osaka University also demonstrated the conceptual design of the Gekko-EXA which would aim to obtain 50 PW output [14].…”