Laser optics development for the laser assisted H− beam stripping at Spallation Neutron Source

Many laser applications in high energy physics require an enormous average laser power that is several orders of magnitude higher than what is available from the present laser technology. This paper reports the development of a macropulse mode laser system and a power recycling dual-wavelength optical cavity. The proposed technology has a capability of providing 50 ps/402.5 MHz/1 MW peak power UV pulses while operating at 1 ms/60 Hz macropulse mode which is required in the laser assisted hydrogen ion beam stripping for the Spallation Neutron Source.