论文信息 - Development of kW class Nd:YAG composite ceramic thin disc laser

Development of kW class Nd:YAG composite ceramic thin disc laser

We are developing a high-repetition and high-average-power Nd:YAG laser amplifier pumped by fiber coupled LDs in order to apply to laser machining of carbon composite materials such as CFRP (Carbon Fiber Reinforced Plastic). Final target is 1.5 kW output at wavelength of 1064 nm by 8 kW LD pumping. The amplifier consists of several Nd:YAG ceramic thin discs on a non-doped ceramic YAG block. At first, we measured wave-front distortion and small-signal gain of a prototype amplifier whose target is more than 500 W output.

[1] Lin Li,et al. Process development of laser machining of carbon fibre reinfoenced plastic composites , 2008 .

[2] Dafu Cui,et al. A kilowatt level diode-side-pumped QCW Nd:YAG ceramic laser , 2010 .

[3] H Inoue,et al. Laser machining of CFRP composites using a ultra short pulsed laser , 2009 .

[4] J. Limpert,et al. Average power of 1.1 kW from spectrally combined, fiber-amplified, nanosecond-pulsed sources. , 2009, Optics letters.

[5] J. Holzrichter. High-power solid-state lasers , 1985, Nature.

[6] H. Hoffmann,et al. Compact diode-pumped 1.1 kW Yb:YAG Innoslab femtosecond amplifier. , 2010, Optics letters.

[7] Cesar Jauregui,et al. 26 mJ, 130 W Q-switched fiber-laser system with near-diffraction-limited beam quality. , 2012, Optics letters.

[8] Tino Eidam,et al. Femtosecond fiber CPA system emitting 830 W average output power. , 2010, Optics letters.