HIGH POWER HYBRID FEMTOSECOND LASER SYSTEMS

被引:1
作者
Dabu, Razvan [1 ]
机构
[1] Natl Inst Nucl Phys & Engn, Str Reactorului 30, Magurele 077125, Romania
关键词
chirped pulse amplification; non-collinear optical parametric amplification; ultra-broad gain bandwidth; CHIRPED-PULSE AMPLIFICATION; HIGH-CONTRAST; PARAMETRIC AMPLIFICATION; 100; TW; GENERATION; INTENSITIES; RATIO; FS;
D O I
10.1117/12.660813
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Hybrid femtosecond lasers combine the chirped pulse amplification (CPA) in laser media with optical parametric chirped pulsed amplification (OPCPA) in nonlinear crystals. A key feature of these systems consists in matching the parametric amplification gain bandwidth of nonlinear crystals to the spectral gain bandwidth of laser amplifying crystals. Gain bandwidths as broad as 150 nm can be obtained by non-collinear OPCPA in BBO, LBO, and DKDP crystals. The ultrabroad gain bandwidth of BBO crystals and the amplification bandwidth of Ti:sapphire laser crystals are overlapped. OPCPA in BBO crystals up to mJ energy level in the laser Front-End, followed by CPA in Ti:sapphire crystals up to ten/hundred Joules, represents an advanced solution for PW-class femtosecond lasers. The configuration and output beam characteristics of the hybrid amplification 2 x 10 PW ELI-NP laser are described.
引用
收藏
页码:1225 / 1243
页数:19
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