Title :
Spectral control of diode-pumped Yb:LiYF4 chirped-pulse regenerative amplifier
Author :
Kawanaka, Junji ; Yamakawa, Koichi ; Nishioka, Hajime ; Ueda, Ken-ichi
Author_Institution :
Adv. Photon Res. Center, Japan Atomic Energy Res. Inst., Kyoto, Japan
Abstract :
Yb:LiYF4 (Yb:YLF) crystal is focused on as one of the promised laser materials in the diode-pumped ultrahigh-peak-power lasers due to its high energy storage, wide spectral emission range, low nonlinear refractive index and high thermal conductivity. In this paper, spectral control with a pellicle was demonstrated for broadening a spectral width of the regenerative amplified pulse. Sub-100 fs pulse duration with over-ten-milli-joule pulse energy after compression could be obtained with pellicle spectral shaping and additional pump diode by replacing the fiber stretcher to an antiparallel grating pair pulse stretcher.
Keywords :
high-speed optical techniques; infrared spectra; lithium compounds; optical materials; optical pulse compression; optical pumping; solid lasers; spectral line broadening; ytterbium; 100 fs; LiYF4:Yb; YLF:Yb; Yb:LiYF4; Yb:YLF crystal; diode-pumping; fiber stretcher; laser materials; pellicle spectral shaping; pulse chirping; pulse compression; pump diode; regenerative amplifier; spectral control; spectral width broadening; Conducting materials; Crystalline materials; Diodes; Energy storage; Optical materials; Pulse amplifiers; Pulse compression methods; Pulse shaping methods; Refractive index; Thermal conductivity;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1313514
