Translated Title
Research of optical parametric oscillation of periodically poled MgO-doped LiNbO3 crystal
Translated Abstract
In order to achieve high conversion rate of 3μm infrared laser output from an optical parametric oscillation , by using the applied pulse electric field method , periodically poled grating of 31.2μm was prepared on MgO-doped( mole fraction of 0.05) lithium niobate crystal with the thickness of 1mm.The relationship between idler wavelength and temperature when periodically poled MgO-doped LiNbO3 pumped by 1064nm pulsed laser was studied by theoretical calculation and simulation . Acousto-optic Q-switched Nd∶YAG laser with the wavelength of 1064 nm was used as the fundamental source to operate optical parametric oscillation experiment with pulse width of 200ns and repetition rate of 20kHz.When pulse input power is 5.567W at the temperature of 80℃, idler output power of 1.141W was obtained with output wavelength of 3μm.The maximum conversion efficiency from incident pump power to idler output was 20.1%.The results show that this method of preparation by periodically poled lithium niobate optical parametric oscillation has high optical conversion efficiency .
Translated Keyword
nonlinear optics
optical parametric oscillation
periodically poled MgO-doped LiNbO 3
quasi phase match
Access Number
WF:perioarticaljgjs201603023
