Efficient Er:YAG lasers at 1645.55 nm, resonantly pumped with narrow bandwidth diode laser modules at 1532 nm, for methane detection

被引：0
|
作者：
Fritsche, H. [1 ]
Lux, O. [1 ]
Schuett, C. [1 ]
Heinemann, S. [2 ]
Gries, W. [2 ]
Eichler, H. J. [1 ]
机构：
[1] Tech Univ Berlin, Inst Opt & Atom Phys, D-10623 Berlin, Germany
[2] DirectPhoton Ind GmbH, D-12489 Berlin, Germany
来源：
SOLID STATE LASERS XXII: TECHNOLOGY AND DEVICES | 2013年 / 8599卷
关键词：
resonant pumping; Er:YAG; eye safe; narrow linewidth diode laser; high brightness pump source; methane detection; ABSORPTION;
D O I：
暂无
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：
Eye safe laser operation at 1645.55 nm (6077 cm(-1)) of resonantly pumped Er:YAG laser systems is demonstrated in cw and Q-switched operation. High brightness diode laser modules emitting at 1532 nm have been utilized as pump sources providing an absorption efficiency of up to 96%. This leads to an overall efficiency of the Er:YAG laser of 30%. For cw operation, 9 W output power is possible at pump power of 30 W while Q-switching results in generation of more than 7 mJ pulses with duration of 60 ns and repetition rate of 500 Hz. The Er:YAG laser systems have been applied for methane detection measurements demonstrating their feasibility for CH4-DIAL applications
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页数：7
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