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2.79 μm high peak power LGS electro-optically Q-switched Cr,Er:YSGG laser
Li Wang1, Jintao Wang, Jingwei Yang
1Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei, China.
Optics Letters
|August 14, 2013
Abstract:
A flash lamp pumped Cr,Er:YSGG laser utilizing a langasite (LGS) crystal as an electro-optic Q-switch is proposed and demonstrated. It is proved that a LGS crystal with relatively high damage threshold can be used as the electro-optic Q-switch at 2.79 μm, and 216 mJ pulse energy with 14.36 ns pulse width is achieved. Its corresponding peak power of pulse can reach 15 MW, to our knowledge the best result at a 2.79 μm wavelength.
