Title :
Highly thermal-shock-resistant operation of diode edge-pumped, composite all-ceramic Yb:YAG microchip lasers
Author :
Tsunekane, M. ; Taira, T.
Author_Institution :
Inst. for Molecular Sci. (IMS), Okazaki
Abstract :
A novel solid-state laser material of composite all-ceramic Yb:Y3Al5O12 is evaluated as a high-power, diode edge-pumped microchip laser. 520 W quasi-continuous-wave (quasi-cw; 10ms with 10Hz) and 414 W continuous-wave (cw) output powers were successfully obtained at incident pump powers of 997 W in quasi-cw and 946 W in cw operation, respectively, from the 3-mm-diameter, Yb doped ceramic core. The cw output power densities of 5.9 kW/cm2 and 0.29 MW/cm3 in the core area and volume, respectively, are the highest as the active-mirror solid-state lasers. It is concluded that the high-power operation of the all-ceramic microchip laser demonstrates the advantage of high thermal shock resistance of the ceramic material.
Keywords :
ceramics; composite materials; laser mirrors; microchip lasers; optical materials; thermal shock; ytterbium; YAG:Yb; active-mirror solid-state lasers; composite all-ceramic microchip lasers; continuous-wave lasers; diode edge-pumped lasers; power 414 W; power 520 W; power 946 W; power 997 W; size 3 mm; solid-state laser material; thermal-shock-resistant operation; ytterbium doped ceramic core; Ceramics; Composite materials; Diodes; Microchip lasers; Optical materials; Power generation; Power lasers; Pump lasers; Solid lasers; Thermal resistance;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4385845
