Spectrum broadening of second harmonic femtosecond pulse in nonlinear crystal

S. V. Alekseev; V. F. Losev; V. I. Trunov; S. A. Frolov

doi:10.1117/12.2613936

2 December 2021 Spectrum broadening of second harmonic femtosecond pulse in nonlinear crystal

S. V. Alekseev, V. F. Losev, V. I. Trunov, S. A. Frolov

Proceedings Volume 12086, XV International Conference on Pulsed Lasers and Laser Applications; 120860J (2021) https://doi.org/10.1117/12.2613936
Event: XV International Conference on Pulsed Lasers and Laser Applications, 2021, Tomsk, Russian Federation

Abstract

The results of experimental and theoretical studies of behavior spectral profile of second harmonic (SH) radiation with a central wavelength of 475-477 nm during its formation in a nonlinear KDP crystal, depending on the phase matching angle and radiation intensity are presented. It is shown that a change in the propagation angle of fundamental radiation to one or the other side of phase matching angle by 16– 20 min leads to a spatially inhomogeneous broadening of the second harmonic spectrum up to two times and a shift of its maximum (averaged over the beam cross section) to shorter wavelengths from the central wavelength.

Citation Download Citation

S. V. Alekseev, V. F. Losev, V. I. Trunov, and S. A. Frolov "Spectrum broadening of second harmonic femtosecond pulse in nonlinear crystal", Proc. SPIE 12086, XV International Conference on Pulsed Lasers and Laser Applications, 120860J (2 December 2021); https://doi.org/10.1117/12.2613936

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