Efficient 10-kW diode-pumped Nd:YAG rod laser

Yasuhiro Akiyama; Hiroyuki Takada; Mitsuo Sasaki; Hiroshi Yuasa; Naoto Nishida

doi:10.1117/12.497941

3 March 2003 Efficient 10 kW diode-pumped Nd:YAG rod laser

Yasuhiro Akiyama, Hiroyuki Takada, Mitsuo Sasaki, Hiroshi Yuasa, Naoto Nishida

Proceedings Volume 4831, First International Symposium on High-Power Laser Macroprocessing; (2003) https://doi.org/10.1117/12.497941
Event: LAMP 2002: International Congress on Laser Advanced Materials Processing, 2002, Osaka, Japan

Abstract

As a tool for high speed and high precision material processing such as cutting and welding, we developed a rod-type all-solid-state laser with an average power of more than 10 kW, an electrical-optical efficiency of more than 20%, and a laser head volume of less than 0.05 m³. We developed a highly efficient diode pumped module, and successfully obtained electrical-optical efficiencies of 22% in CW operation and 26% in QCW operation at multi-kW output powers. We also succeeded to reduce the laser head volume, and obtained the output power of 12 kW with an efficiency of 23%, and laser head volume of 0.045 m³. We transferred the technology to SHIBAURA mechatronics corp., who started to provide the LD pumped Nd:YAG laser system with output power up to 4.5 kW. We are now continuing development for further high power laser equipment.

Citation Download Citation

Yasuhiro Akiyama, Hiroyuki Takada, Mitsuo Sasaki, Hiroshi Yuasa, and Naoto Nishida "Efficient 10 kW diode-pumped Nd:YAG rod laser", Proc. SPIE 4831, First International Symposium on High-Power Laser Macroprocessing, (3 March 2003); https://doi.org/10.1117/12.497941

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