Shigeki Tokita

A/Professor Shigeki Tokita

Institute of Laser Engineering, Osaka University 

High Power 3 μm Erbium Fiber Lasers and Their Applications. 

Recent breakthroughs in fluoride-fiber laser technologies enabled high power mid-infrared output of a few tens of watts with long lifetime operation of more than 1000 hours. We will review the recent advances in high power 3 μm Er fiber lasers. The high power 3 μm fiber lasers are significantly useful for laser processing of transparent materials. We also will introduce new glass processing techniques (cutting, chamfering, and welding) using a 3 μm fiber laser.

Shigeki Tokita is an associate professor of the Institute of Laser Engineering (ILE), Osaka University. After receiving his Dr. Eng. from the Osaka University in 2006, he was an assistant professor at the Institute for Chemical Research, Kyoto University in 2006–2013. His research interests are in high-power fiber lasers and laser-plasma interactions. He conducts research in efficient high-average-power Yb-doped lasers, Er-doped mid-infrared fiber lasers, control of energetic electron beam produced by ultrahigh-intensity laser pulses and strong terahertz wave generation by laser-plasma interactions. He is also a director of the project to upgrade the LFEX petawatt laser system