A good thermo-optic property of strontium dodeca-aluminum oxide[SrAl_(12)O_(12),SRA]host material is very advantageous to the development of high-performance lasers by doping rare-earth ions for gain medium.In this wo...A good thermo-optic property of strontium dodeca-aluminum oxide[SrAl_(12)O_(12),SRA]host material is very advantageous to the development of high-performance lasers by doping rare-earth ions for gain medium.In this work,we report on diode-end-pumped high-performance continuous-wave and passively Q-switched Nd:SRA lasers.For continuous-wave operation,a maximum output power of 6.45 W is achieved at 1049 nm with a slope eficiency of about 41.6%.Using a Y_(3)Al_(12)O_(19)etalon,we have firstly achieved a 1066 nm laser with a maximum output power of 4.15 W and a slope efficiency of about 27%,to the best of our knowledge.For passively Q switched operation,with Cr^(4+):YAG as a saturable absorber,a maximum average output power of 1.82 W was achieved with the shortest pulse width of 18.2 ns at pulse repetition rate of 22.9 kHz.The single-pulse energy and pulse peak power were 79.4μJ and 4.3 kW.This work has further verified that the Nd:SRA crystal is very promising for high-performance laser generation.展开更多
基金This work was partially supported by the National Natural Science Foundation of China(No.61621001)Qinglan Project of the Young and Middle-aged Academic Leader of Jjiangsu College and University.
文摘A good thermo-optic property of strontium dodeca-aluminum oxide[SrAl_(12)O_(12),SRA]host material is very advantageous to the development of high-performance lasers by doping rare-earth ions for gain medium.In this work,we report on diode-end-pumped high-performance continuous-wave and passively Q-switched Nd:SRA lasers.For continuous-wave operation,a maximum output power of 6.45 W is achieved at 1049 nm with a slope eficiency of about 41.6%.Using a Y_(3)Al_(12)O_(19)etalon,we have firstly achieved a 1066 nm laser with a maximum output power of 4.15 W and a slope efficiency of about 27%,to the best of our knowledge.For passively Q switched operation,with Cr^(4+):YAG as a saturable absorber,a maximum average output power of 1.82 W was achieved with the shortest pulse width of 18.2 ns at pulse repetition rate of 22.9 kHz.The single-pulse energy and pulse peak power were 79.4μJ and 4.3 kW.This work has further verified that the Nd:SRA crystal is very promising for high-performance laser generation.
