Active-mirror-laser-amplifier thermal management with tunable helium pressure at cryogenic temperatures

被引：31
作者：
Lucianetti, Antonio [1 ]
Albach, Daniel [1 ]
Chanteloup, Jean-Christophe [1 ]
机构：
[1] Ecole Polytech, CNRS, CEA, UPMC,LULI, F-91128 Palaiseau, France
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 13期
关键词：
SOLID-STATE LASERS; HIGH-AVERAGE-POWER; YB-YAG; FACILITY;
D O I：
10.1364/OE.19.012766
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We illustrate the benefits of a thin, low pressure helium cell for efficient and safe heat removal in cryogenically-cooled active mirror laser amplifiers operating in the [100 J-1 kJ] / [1-10 Hz] range. A homogeneous gain medium temperature distribution averaging 160 K is obtained with a sub-mm helium-filled gap between the gain medium and a copper plate at 77 K. A significant degree of flexibility for tuning the temperature in the amplifier can be achieved by varying the pressure of the helium gas in the 10(2) to 10(5) Pa range. (C)2011 Optical Society of America
引用
收藏
页码：12766 / 12780
页数：15
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