Chinese Optics Letters, Volume. 6, Issue 4, 286(2008)
A periodically poled LiNbO3 optical parametric generator in wavelength conversion from 2 to 3.88~4.34 \mum
A periodically poled lithium niobate (PPLN) optical parametric generator (OPG) pumped by a laser diode (LD)-pumped Q-switched Tm,Ho:GdVO4 laser operated at 2.048 \mum with pump pulse of 25 ns and repetition rate of 10 kHz is reported. A continuous tunable middle-infrared (mid-IR) spectrum of 3.88~4.34 \mum is obtained by changing the crystal temperature from 50 to 124 oC. When the incident pump power is 3 W, the total OPG output power is 95 mW, corresponding to optical conversion efficiency of 3.2%.
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Xingbao Zhang, Youlun Ju, Yuezhu Wang, Baoquan Yao, Yunjun Zhang. A periodically poled LiNbO3 optical parametric generator in wavelength conversion from 2 to 3.88~4.34 \mum[J]. Chinese Optics Letters, 2008, 6(4): 286
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