期刊
LASER PHYSICS
卷 20, 期 8, 页码 1687-1691出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1054660X10150089
关键词
-
资金
- Shanghai Municipal Science and Technology Commission [05S207103]
We fabricate a transparent glass ceramic contains magnesium-aluminum spinel nanocrystallites doped with Co2+ ions. The ground-state and excited-state absorption cross section of this glass ceramic at 1.54 mu m are estimated to be (2.8 +/- 0.3) x 10(-19) cm(2) and (4.8 +/- 0.5) x 10(-20) cm(2), respectively. For the first time, the passively Q-swithched operation of LD pumped 1.54 mu m microchip Yb3+/Er3+ glass laser is realized with transparent glass ceramic as saturable absorber. The Q-switched pulses of 3.846 kHz in repetition rate, 6.2 ns in duration and 6.3 mu J in energy are obtained. At last, the dependences of pulse width and repetition rate on pump power are also investigated.
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