Efficient energy extraction below the saturation fluence in a low-gain low-loss regenerative chirped-pulse amplifier

被引：12

作者：

Biswal, S ^{[1
]}

Itatani, J ^{[1
]}

Nees, J ^{[1
]}

Mourou, GA ^{[1
]}

机构：

[1] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA

来源：

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS | 1998年 / 4卷 / 02期

关键词：

chirped-pulse amplification; optical pulse amplifiers; regenerative amplifiers; ultrafast optics; ytterbium : glass lasers; ytterbium materials;

D O I：

10.1109/2944.686750

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Simulations of chirped-pulse amplification (CPA) in a quasi-three-level laser are presented which illustrate how depletion of the inversion can occur at ten times below the saturation fluence in a regenerative amplifier. The simulations are applied to Yb:glass, a promising laser medium for a directly diode-pumped high-peak power laser. Virtually stretching a pulse to a portion of the buildup time of a regenerative amplifier allows for efficient energy extraction from a laser medium that has a saturation fluence greater than the damage threshold. Experimental results from a Yb:glass regenerative amplifier produced 12-mJ pulses at a peak fluence of 9 J/cm(2) without damage.

引用

页码：421 / 425

页数：5

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