High-power and high-efficiency operation of a CW-Diode-Side-Pumped Nd:YAG rod laser

被引：42

作者：

Fujikawa, S

Kojima, T

Yasui, K

机构：

[1] Adv. Technol. R. and D. Center, Mitsubishi Electric Corporation, Amagasaki, Hyogo

[2] Tokyo Institute of Technology, Tokyo

[3] Central Research Laboratory, Mitsubishi Electric Corporation, Hyogo

[4] Osaka University, Osaka

[5] Mitsubishi Electric Corporation, Hyogo

[6] Japan Society of Applied Physics, Laser Society of Japan

[7] University of Tokyo, Tokyo

[8] Product Development Laboratory, Mitsubishi Electric Corporation, Hyogo

[9] Stanford University, Stanford, CA

[10] Central Research Laboratory, Mitsubishi Electric Corporation

[11] American Physical Society, Optical Society of America

来源：

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS | 1997年 / 3卷 / 01期

关键词：

laser modes; laser resonators; optical pumping; polarization; semiconductor lasers; solid lasers; thermal lensing;

D O I：

10.1109/2944.585812

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：

We have demonstrated high-power and high-efficiency performance of a continuous-wave (CW) Nd:YAG laser with a simple and scalable side-pumping configuration, The maximum output power of 147 W was obtained in low brightness operation of M-2 = 45, The corresponding electric efficiency is 14.8%, To our knowledge, this is the highest value reported for diode side-pumped Nd:YAG lasers. By using a rate and photon transport calculation, we have estimated the pumping efficiency of 72%. High brightness operation was also carried out by applying bifocusing compensation of the Nd:YAG rod. The brightness of 272 MW/cm(2).sr with beam quality of M-2 = 5.9 and output power of 107 W was obtained at the electric efficiency of 11.6%. The brightness and the electric efficiency are comparable with those of industrial high-power CO2 lasers that have been the first option for industrial applications.

引用

页码：40 / 44

页数：5

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