Highly efficient high-brightness diode stacks side-pumped Nd:YAG rod laser

Shuichi Fujikawa; Keisuke Furuta; Koji Yasui

doi:10.1117/12.424599

16 April 2001 Highly efficient high-brightness diode stacks side-pumped Nd:YAG rod laser

Shuichi Fujikawa, Keisuke Furuta, Koji Yasui

Proceedings Volume 4267, Solid State Lasers X; (2001) https://doi.org/10.1117/12.424599
Event: Photonics West 2001 - LASE, 2001, San Jose, CA, United States

Abstract

We have proposed a highly efficient and high-brightness quasi-cw Nd:YAG rod laser with a novel-side-pumping design using micro-lens free diode-stacks. We demonstrated 320-W output power with 28-% electrical-to-optical efficiency, which is, to our knowledge, the highest efficiency reported for diode-pumped solid-state lasers. We also achieved the beam quality of M2 =4 with the output power of 500 W by introducing a bifocusing compensation resonator. The corresponding electrical-to-optical efficiency was 20 %.

Citation Download Citation

Shuichi Fujikawa, Keisuke Furuta, and Koji Yasui "Highly efficient high-brightness diode stacks side-pumped Nd:YAG rod laser", Proc. SPIE 4267, Solid State Lasers X, (16 April 2001); https://doi.org/10.1117/12.424599

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