Fifteen terawatt picosecond CO2 laser system

被引：154
作者：
Haberberger, D. [1 ]
Tochitsky, S. [1 ]
Joshi, C. [1 ]
机构：
[1] Univ Calif Los Angeles, Dept Elect Engn, Neptune Lab, Los Angeles, CA 90095 USA
来源：
OPTICS EXPRESS | 2010年 / 18卷 / 17期
基金：
美国国家科学基金会;
关键词：
LASER; PULSES; SEMICONDUCTORS; GENERATION; AMPLIFIER; GAIN;
D O I：
10.1364/OE.18.017865
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The generation of a record peak-power of 15TW (45J, 3ps) in a single CO2 laser beam is reported. Using a master oscillator-power amplifier laser system, it is shown that up to 100J of energy can be extracted in a train of 3ps laser pulses separated by 18ps, a characteristic time of the CO2 molecule. The bandwidth required for amplifying the short injected laser pulse train in a 2.5atm final CO2 amplifier is provided by field broadening of the medium at intensities of up to 140GW/cm(2). The measured saturation energy for 3ps pulses is 120mJ/cm(2) which confirms that energy is simultaneously extracted from six rovibrational lines. (C) 2010 Optical Society of America
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页码：17865 / 17875
页数：11
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