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Volume 25 - ICOP & ICPET 2019
ICOP & ICPET _ INPC _ ICOFS 2019, 25 - ICOP & ICPET 2019: 793-796 |
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Shahnani E, Yousefi M H, Dehghan M. Analysis OPO laser efficiency in the range of 400 to 2000 nm . ICOP & ICPET _ INPC _ ICOFS 2019; 25 :793-796
URL: http://opsi.ir/article-1-1836-en.html
URL: http://opsi.ir/article-1-1836-en.html
1- Esfahan, Shahin Shahr, Malek Ashtar university
Abstract: (1452 Views)
The purpose of this study is to design a tunable laser in the range of 400 to 2000 nm. The laser pump used in this oscillator is the third harmonic of a Nd-YAG laser with a wavelength of 355 nm and a nonlinear crystal used in the cavity of this oscillator is BBO. In order to produce tangible efficiency, the phase matching angles required for this oscillator with the help of software MATLAB is calculated.The effective factor in the efficiency of the optical parametric oscillator is the intensity ratio of the input pump beam to the pump threshold required to initiate the parametric process. With the help of numerical calculations, the optimal value for this factor is calculated and using that optimum length for the nonlinear crystal in the parametric oscillator is determined. The suitable length for BBO crystals in this research is 10 to 15 mm.
Keywords: Optical parametric oscillator, phase matching angles, Maximum oscillator efficiency, optimal crystal length
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