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Proceedings Paper

Efficient 10-kW diode-pumped Nd:YAG rod laser
Author(s): Yasuhiro Akiyama; Hiroyuki Takada; Mitsuo Sasaki; Hiroshi Yuasa; Naoto Nishida
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Paper 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.

Paper Details

Date Published: 3 March 2003
PDF: 5 pages
Proc. SPIE 4831, First International Symposium on High-Power Laser Macroprocessing, (3 March 2003); doi: 10.1117/12.497941
Show Author Affiliations
Yasuhiro Akiyama, Toshiba Corp. (Japan)
Hiroyuki Takada, Toshiba Corp. (Japan)
Mitsuo Sasaki, Toshiba Corp. (Japan)
Hiroshi Yuasa, Toshiba Corp. (Japan)
Naoto Nishida, Toshiba Corp. (Japan)


Published in SPIE Proceedings Vol. 4831:
First International Symposium on High-Power Laser Macroprocessing
Isamu Miyamoto; Kojiro F. Kobayashi; Koji Sugioka; Reinhart Poprawe; Henry Helvajian, Editor(s)

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