By Ruxin Li, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences
We will introduce recent progress at SIOM in the development of high-brightness x-ray sources driven with intense super-intense ultrafast laser pulses. We have demonstrated a MeV gamma-ray source of high brightness (1022photons/smm2mrad2 per 0.1% bandwidth), based on the Compton scattering of laser accelerated electron beams with laser pulses . Meanwhile, a compact XUV-free electron laser (FEL) at 30nm based on a 0.5GeV level laser electron accelerator is at the final stage of experiments. These x-ray sources are based on the laser wake-field electron accelerators (LWFA) driven by a home-made 5Hz 200TW laser facility .
If a LWFA based FEL at XUV regime is successfully implemented, we would move forward to the FELs at sub nm regime. A 10GeV class LWFA would be necessary, which can be driven by a multi PW laser pulses. We will introduce the latest progress of implementing a 10PW laser facility, including the demonstration of a 5PW CPA (chirped pulse amplification) laser amplifier  and a 1PW OPCPA (optical parametric chirped pulse amplification) laser amplifier .
1. Changhai Yu et al, submitted.
2. Yi Xu et al., Optics and Laser Technology 79, 141(2016).
3. Yuxi Chu et al., High-energy large-aperture Ti:sapphire amplifier for 5 PW laser pulses, Optics Letters 40, 5011 (2015).
4. Lianghong Yu et al., Optimization for high-energy and high-efficiency broadband optical parametric chirped-pulse amplification in LBO near 800 nm, Optics Letters 40, 3412 (2015).