Depolarization of radiation from high-power neodymium lasers and second harmonic generation of partly depolarized radiation

Arifzhanov, S. B.; Gulamov, A. A.; Redkorechev, V. I.; Usmanov, T.

doi:10.1070/qe1985v015n07abeh007293

Cited by 4 publications

(2 citation statements)

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“…Approximately, the same part of radiation at the fundamental frequency was converted into the second harmonic in both cases: partially polarized and the linearly polarized radiation. In work [21], it is noted that the presence of partial depolarization of a few per cent in the linearly polarized radiation for ooe interaction insignificantly influences conversion efficiency. This similarity of the conversion process in these two cases can also be explained by a more homogeneous spatial distribution of radiation intensity over the beam cross-section for partially polarized radiation (see figure 3).…”

Section: Experiments and Theorymentioning

confidence: 99%

Nonlinear optical conversion of Nd:glass laser multimode radiation into the second harmonic in KDP crystal

Dmitriev

Осипов

Puzyrev

et al. 2012

J. Phys. B: At. Mol. Opt. Phys.

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The second-harmonic generation (SHG) of Nd:glass multimode laser radiation in a 3 cm long KDP crystal has been studied both experimentally and theoretically for type I doubling at power densities of up to 2.5 GW cm −2 , radiation divergence of 0.5-3.5 mrad and between 100-1000 transverse modes. The theoretical calculations of SHG were performed in the fixed-field approximation, fixed-intensity approximation and in the nonlinear regime. The maximum experimental conversion efficiency of 52% was obtained for the case of partially polarized radiation with divergence of 0.5 mrad and 100 transverse modes.

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Section: Experiments and Theorymentioning

confidence: 99%

Nonlinear optical conversion of Nd:glass laser multimode radiation into the second harmonic in KDP crystal

Dmitriev

Осипов

Puzyrev

et al. 2012

J. Phys. B: At. Mol. Opt. Phys.

View full text Add to dashboard Cite

show abstract

“…7 at Rochester, and although It Is relatively Insensitive to the intensity and phase fluctuations of the drive beam, it is extremely sensitive to the beam's polarization field. 8 Thus, one would guess that the nonlinear optical process that contributes most to the anomalous frequency conversion behavior is Item #1 with the second and third Items contributing in a less direct way. The last two items on the list are treated elsewhere and will not be discussed further here.…”

Section: Nonlinear Optical Processesmentioning

confidence: 99%