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Passive Q-switch mode-locking of 1.34 μ m Nd:GdVO4 lasers with Co2+:LMA saturable absorber

✍ Scribed by B.-T. Zhang; J.-L. He; H.-T. Huang; C.-H. Zuo; K.-J. Yang; X.-L. Dong; J.-L. Xu; S. Zhao

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
164 KB
Volume
6
Category
Article
ISSN
1612-2011

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✦ Synopsis

A diode-end-pumped passively Q-switched modelocked Nd:GdVO4 laser operating at 1.34 μm by using the Co 2+ :LaMgAl 11 O 19 (Co 2+ :LMA) as the saturable absorber in a Z-type cavity has been demonstrated in our experiment for the first time. The repetition rate of the Q-switched pulse envelop increases from 4.2 kHz to 17 kHz as the pump power increases from 3.8 W to 8.9 W, and a maximum Q-switched and modelocked fundamental mode average output power of 126 mW is obtained. The mode-locked pulse inside the Q-switched pulse has a repetition rate of 114 MHz, and its average pulse width is estimated to be about 280 ps.

Average output power, mW

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