A Passive Q-Switched Microchip Er/Yb Glass Laser Pumped by Laser Diode  

作　　者：宋峰 吴朝晖 刘淑静 蔡虹 田建国 张光寅 Boris Denker Sergei Sverchkov 

机构地区：[1]Photonics Center, Nankai University, Tianjin 300071 [2]Key Laboratory of Advanced Technique and Fabrication for Weak-Light Nonlinear Photonics Materials (Ministry of Education), Nankai University, Tianjin 300457 [3]General Physics Institute (GPI), Russian Academy of Sciences

出　　处：《Chinese Physics Letters》2006年第5期1195-1197,共3页中国物理快报（英文版）

基　　金：Supported by the Program for the New Century Excellent Talents, Excellent Young Teachers in Universities and Scientific Research Foundation for Returned 0verseas Chinese Scholars by M0E and the Natural Science Foundation of Tianjin City 05YFGPGX05100.

摘　　要：A laser-diode-pumped 1.54-μm passive Q-switched erbium doped glass laser was reported. We utilize a laser diode with wavelength of 973nm to pump a 1-mm Er/Yb co-doped phosphate glass with the erbium and ytterbium concentrations of 1 wt.% and 21 wt.%, respectively. A Co^2＋ ：MgAl2O4 slab crystal was used as a passive Q- switcher. Q-switched pulses with repetition frequency of 800Hz, width of 7.4ns, peak power of 2.2kW and average power of 13.3 m W were obtained when absorbed pump power was 4 75 m W. A sandwich structure of the Q- switched microchip Er/Yb glass laser was demonstrated, which shows shorter pulse width of 6.8 ns. Dependences of pulse duration and repetition frequency on pump power were also investigated.A laser-diode-pumped 1.54-μm passive Q-switched erbium doped glass laser was reported. We utilize a laser diode with wavelength of 973nm to pump a 1-mm Er/Yb co-doped phosphate glass with the erbium and ytterbium concentrations of 1 wt.% and 21 wt.%, respectively. A Co^2＋ ：MgAl2O4 slab crystal was used as a passive Q- switcher. Q-switched pulses with repetition frequency of 800Hz, width of 7.4ns, peak power of 2.2kW and average power of 13.3 m W were obtained when absorbed pump power was 4 75 m W. A sandwich structure of the Q- switched microchip Er/Yb glass laser was demonstrated, which shows shorter pulse width of 6.8 ns. Dependences of pulse duration and repetition frequency on pump power were also investigated.

关 键 词：ER-YB PHOSPHATE-GLASS SATURABLE ABSORBER 

分 类 号：TN24[电子电信—物理电子学]