Title :
High average and high peak brightness slab laser
Author :
Amano, Sho ; Mochizuki, Takayasu
Author_Institution :
Lab. of Adv. Sci. & Technol., Himeji Inst. of Technol., Hyogo, Japan
fDate :
2/1/2001 12:00:00 AM
Abstract :
A high average and high peak brightness Nd:YAG MOPA laser system composed of a laser-diode-pumped Nd:YAG master oscillator, flash-lamp-pumped slab power amplifiers and a phase conjugated mirror was developed. The system demonstrates an average output power of 235 W at a repetition rate of 320 Hz and a peak power of 30 MW at a pulse duration of 24 ns with M2=1.5. Both an average brightness of 7×109 W/cm2·sr and a peak brightness of 1×1015 W/cm2·sr are achieved simultaneously. The system design rules that we confirmed suggest that by replacing lamp pumping in the amplifier with laser-diode pumping, an average output power of ~1 kW can be obtained at ~1 kHz with a higher average brightness of ~3×1010 W/cm2·sr and a higher peak brightness of ~3×1015 W/cm2·sr
Keywords :
brightness; flash lamps; neodymium; optical phase conjugation; optical pumping; solid lasers; 1 kW; 235 W; 30 MW; Nd:YAG MOPA laser system; Nd:YAG master oscillator; YAG:Nd; YAl5O12:Nd; average output power; flash-lamp-pumped slab power amplifiers; high average high peak brightness slab laser; laser-diode-pumped; peak brightness; phase conjugated mirror; pulse duration; repetition rate; Brightness; High power amplifiers; Laser excitation; Mirrors; Oscillators; Power amplifiers; Power generation; Power lasers; Pulse amplifiers; Slabs;
Journal_Title :
Quantum Electronics, IEEE Journal of
