We report the optimization of a tunable source of near-infrared radiation based on a multigrating periodically poled
lithium niobate (PPLN). The pump source for the PPLN optical parametric oscillator (OPO) was diode pumped Qswitched
nanosecond Nd:YVO4 laser emitting the radiation at 1064 nm with the pulse repetition rate from 0.2 kHz to
40 kHz. The influence of the output-coupler and the resonator length on the efficiency of the PPLN OPO was
investigated. For this aim eight mirrors with different reflectance were tested. A minimum threshold of 30 μJ was
measured. The highest output power was 660 mW at 1.64 μm when the pump power was 3 W at 15 kHz pulse repetition
rate. The bulk grating periods of the PPLN structure determined the signal in the range of 1.49-2.1 μm and idler in the range of 2.1-3.8 μm.
We report standardized absorption and scattering losses measurements of the nonlinear crystals LiInSe2 and LiInS2 in IR range by high average power 1064 nm radiation and tunable radiation of optical parametric oscillator (OPO) based on a
periodically poled lithium niobate (PPLN) pumped by a diode-pumped, Q-switched TEM00 mode Nd:YVO4 laser
operated at 1064 nm.
We report standardized absorption and scattering losses measurements of the nonlinear crystals LiInSe2 and LiInS2 in IR
range by high average power 1064 nm radiation and tunable radiation of optical parametric oscillator (OPO) based on a
periodically poled lithium niobate (PPLN) pumped by a diode-pumped, Q-switched TEM00 mode Nd:YVO4 laser
operated at 1064 nm.
Conference Committee Involvement (1)
Sixth International Conference on Advanced Optical Materials and Devices
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