期刊
IEEE JOURNAL OF QUANTUM ELECTRONICS
卷 48, 期 5, 页码 616-621出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JQE.2012.2188500
关键词
Acousto-optic Q-switched laser; erbium-ytterbium laser; Er:Yb:LuAl3(BO3)(4) crystal; Er:Yb:YAl3(BO3)(4) crystal; intracavity frequency doubling laser
资金
- National Natural Science Foundation of China [50802094, 91122033]
- Natural Science Foundation of Fujian Province [2011J01375]
- Chinese Academy of Sciences [KJCX2-EW-H03-01]
Laser oscillations except for 1560 nm were suppressed and efficient acousto-optic Q-switched pulse lasers at a single wavelength of 1560 nm were realized in Er:Yb:RAl3(BO3)(4) (R = Y and Lu) crystals by a special design of the cavity mirror transmissions, when a 970-nm diode laser with a 2% duty cycle was used as the pump source. At an absorbed pump power of 13.5 W and a pulse repetition frequency of 1 kHz, 400-mu J pulse energy with a width of 155 ns and 580-mu J pulse energy with a width of 110 ns were achieved in Er:Yb:YAl3(BO3)(4) and Er:Yb:LuAl3(BO3)(4) crystals, respectively. Furthermore, intracavity frequency doubling 780-nm Q-switched pulse lasers were realized by using a KTP nonlinear optical crystal. The pulse energy and width were 30 mu J and 80 ns for Er:Yb:YAl3(BO3)(4) crystal and 50 mu J and 68 ns for Er:Yb:LuAl3(BO3)(4) crystal, respectively.
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