Title :
Development of high power Yb:YAG pump source for few-cycle pulse amplification
Author :
Kawanaka, Junji ; Yasuhara, Ryo ; Takeuchi, Yasuki ; Pearce, Stuart J. ; Kawashima, Toshiyuki ; Kan, Hirofumi
Author_Institution :
Inst. of Laser Eng., Osaka Univ., Suita, Japan
Abstract :
Recently few cycle pulses with an ultrahigh peak power and a high average power have been actively developed by using a conventional Ti:sapphire system and an optical parametric chirped-pulse amplification (OPCPA) system. A powerful pump source is enthusiasmly desired in nano- and pico-seconds for Ti:sapphire and OPCPA, respectively. A "GENBU (Generation of ENergetic Beam Ultimate)"-laser has been conceptually designed for peta-watt peak power at 100 Hz by using the broadband OPCPA technique. A 100 J pulse energy is necessary as a pump source and a diode-pumped solid-state laser is one of the most promising system, which uses novel technologies of a cryogenic Yb: YAG and an active mirror amplification scheme. A feasibility of the pump source has been studied at sub-joule pulse energy to show its viability of this new laser system. A master-oscillator power-amplifier (MOPA) system has been developed at 150 mJ at 100 Hz in 10 ns.
Keywords :
mirrors; optical parametric amplifiers; optical pumping; sapphire; semiconductor lasers; solid lasers; titanium; ytterbium; yttrium; YAG:Yb; active mirror amplification scheme; broadband OPCPA technique; diode-pumped solid-state laser; energy 100 J; energy 150 mJ; few-cycle pulse amplification; frequency 100 Hz; master-oscillator power-amplifier system; optical parametric chirped-pulse amplification system; pump source; time 10 ns; Chirp; Diodes; Laser beams; Laser excitation; Nonlinear optics; Optical pulses; Optical pumping; Power generation; Pulse amplifiers; Stimulated emission;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5192799
