Ceramic Lasers Developed by Nano-Technology

Ceramic Lasers Developed by Nano-Technology Institute for Laser Science Professor Ken-ichi UEDA ueda@ils.uec.ac.jp http://www.ils.uec.ac.jp/~ueda_lab/
We developed ultimately transparent "scalable laser quality ceramics" using modern ceramic technology. Laser quality ceramics have been a dream of solid state lasers for a long time. We are proud because this is a real revolutional technique for solid state lasers.
	Ceramic YAG is better.
Nano-crystalline particles made by the liquid phase chemical reaction grow to the fully transparent ceramic laser materials through the vacuum sintering process. Solid state crystal growth is quite popular in our nature and gives us another possibilty to make glass-like fabricated crystalline materials. The high quality ceramics YAG is comparable to or even better than single crystal YAG. Ceramic YAG lasers demonstrated more than kW output and 60% optical-to-optical efficiency. The biggest advantage is the scaling to the meter-size plate. As a result, the ceramic laser is the most promising active medium for the laser fusion drivers. Ceramic Y2O3 laser generated 430fs Fourier-limited pulses in the SESAM mode locking as shown in Figures. Sesquioxide ceramic lasers are most promising for the femto-second lasers for industry.
We are developing world original technology for solid state lasers. It makes possible to design the crystalline material by the modern ceramic technology.	Pulse train and auto-correlation trace.