Title :
Development and Applications of 0.1-Hz, 1.1-PW Ti:sapphire Laser
Author :
Lee, Jongmin ; Jeong, Tae Moon
Author_Institution :
Adv. Photonics Res. Inst., GIST, Gwangju, South Korea
Abstract :
Ultrahigh-power laser systems are extremely useful to explore new physical phenomena through light-matter interaction processes. In this paper, the output performances and applications for the 30-fs, PW Ti:sapphire laser system at APRI are presented. The laser system consists of an ultrashort laser oscillator, an aberration-free Offner grating stretcher, Ti:sapphire amplifiers and a 4-grating compressor . Twelve 8.5-J green pump pulses in the 3-pass booster amplifier make the output beam profile uniform. Amplified output energy for the booster amplifier is 47 J at 96 J pump energy, yielding an efficiency of 49%. An adaptive optics (AO) system is installed before the compressor. Finally, the PW laser system delivers 30-fs, 33-J laser pulses at 0.1-Hz repetition rate. Temporal contrast is controlled by a saturable absorber and a double plasma mirror system.
Keywords :
adaptive optics; amplifiers; diffraction gratings; high-speed optical techniques; laser mirrors; optical design techniques; optical saturable absorption; oscillators; sapphire; solid lasers; titanium; 3-pass booster amplifier; Al2O3:Ti; aberration-free Offner grating stretcher; adaptive optics; amplified output energy; double plasma mirror system; efficiency 49 percent; energy 8.5 J to 96 J; grating compressor; light-matter interaction; saturable absorber; temporal contrast; time 30 fs; ultrahigh power laser systems; ultrashort laser oscillator; Adaptive optics; Electron beams; Focusing; Laser beams; Laser theory; Pump lasers; X-ray lasers;
Conference_Titel :
Photonics Conference (PHO), 2011 IEEE
Conference_Location :
Arlington, VA
Print_ISBN :
978-1-4244-8940-4
DOI :
10.1109/PHO.2011.6110707
