Nonlinear refractive index of vanadate crystals in the near IR region

Водчиц, А. И.; Orlovich, V. A.; Апанасевич, П. А.

doi:10.1007/s10812-012-9554-x

Cited by 10 publications

(7 citation statements)

References 14 publications

(18 reference statements)

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“…For CW and pulsed operation, the saturation fluence then decreases by a factor of 5 as well, enhancing the power or energy extraction efficiencies in damage-limited operation. The saturation intensity, found by dividing Equation (76) by the upper level fluorescence lifetime, decreases by the same factor of 5 as well.…”

Section: Spectroscopic and Lasing Parametersmentioning

confidence: 71%

The Application of Cryogenic Laser Physics to the Development of High Average Power Ultra-Short Pulse Lasers

Brown¹,

Tornegård²,

Kolis

et al. 2016

Applied Sciences

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Ultrafast laser physics continues to advance at a rapid pace, driven primarily by the development of more powerful and sophisticated diode-pumping sources, the development of new laser materials, and new laser and amplification approaches such as optical parametric chirped-pulse amplification. The rapid development of high average power cryogenic laser sources seems likely to play a crucial role in realizing the long-sought goal of powerful ultrafast sources that offer concomitant high peak and average powers. In this paper, we review the optical, thermal, thermo-optic and laser parameters important to cryogenic laser technology, recently achieved laser and laser materials progress, the progression of cryogenic laser technology, discuss the importance of cryogenic laser technology in ultrafast laser science, and what advances are likely to be achieved in the near-future.

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Section: Spectroscopic and Lasing Parametersmentioning

confidence: 71%

The Application of Cryogenic Laser Physics to the Development of High Average Power Ultra-Short Pulse Lasers

Brown¹,

Tornegård²,

Kolis

et al. 2016

Applied Sciences

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show abstract

“…It can be shown that the semiclassical equations ( 20), ( 21), ( 25), ( 27), (30), (32) obtained from the wave equation for the field in the laser cavity are fully consistent with the equations of quantum theory of intracavity Raman conversion based on the analysis and transformation of the field + matter Hamiltonian [23]. This is achieved when in the quantum equations the frequency Stark shifts, the self-energy terms, and the quantum noise are neglected, and the operator equations are reformulated into equations for quantum-mechanical averages.…”

Section: Discussionmentioning

confidence: 99%

“…In this paper, the effects of the non-resonant third-order susceptibility are not taken into account. In most Raman-active crystals providing effective Raman scattering in the near IR region, such as barium nitrate, diamond, vanadates, tungstates, molybdates, etc, the nonlinear refraction coefficients (being proportional to non-resonant third-order susceptibilities), do not exceed the value of n 2 ≈ 2 10 −15 cm 2 W −1 [30][31][32]. Accordingly, for the intracavity intensities 5 GW cm −2 that is realized very often in compact solid-state Raman lasers the corrections for refractive indices (product n 2 -intensity) are less than 10 −5 .…”

Section: Theorymentioning

confidence: 99%

Semiclassical theory of transient intracavity stimulated Raman scattering in compact lasers

Voitikov¹,

Demidovich²,

Danailov³

et al. 2014

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

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We have developed a semiclassical theory of transient intracavity stimulated Raman scattering (SRS) of the fundamental (laser) wave into Stokes and anti-Stokes waves of several orders in compact lasers. From the analysis of the nonlinear wave equation for the field in the laser cavity and the constitutive equations for the Raman medium a hierarchy of rate equations for the amplitudes of the fundamental and Stokes/anti-Stokes waves, amplitudes of collective vibrations and populations of excited states of the Raman medium has been obtained. It has been shown that the known semiclassical and phenomenological models of intracavity SRS-conversion are special cases of the proposed theory. We have used the theory to calculate the output pulse parameters of a solid-state Raman microchip laser in which we obtained experimentally, along with high peak power first Stokes pulses, also first anti-Stokes and second Stokes radiation but only in the spectrum. The results of modelling agree well with the experimental data and show that anti-Stokes radiation is due to the multiwave mixing.

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“…[35][36][37][38][39][40][41][42]). in Table 1 [35][36][37][38][39][40][41][42] . Among these, Nd:GdVO 4 is an attractive candidate for high-power lasers because of its considerably higher thermal conductivity, which endows it with an ideal combination of the merits of Nd:YVO 4 and Nd:YAG [35,43] .…”

Section: Introductionmentioning

confidence: 99%

High-repetition-rate and high-power picosecond regenerative amplifier based on a single bulk Nd:GdVO4 crystal

Guo

Wang

Lin

et al. 2019

High Pow Laser Sci Eng

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We report on a high-repetition-rate, high-power continuously pumped Nd:GdVO4 regenerative amplifier. Numerical simulations successfully pinpoint the optimum working point free of bifurcation instability with simultaneous efficient energy extraction. At a repetition rate of 100 kHz, a maximum output power of 23 W was obtained with a pulse duration of 27 ps, corresponding to a pulse energy of $230~\unicode[STIX]{x03BC}\text{J}$ . The system displayed an outstanding stability with a root mean square power noise as low as 0.3%. The geometry of the optical resonator and the pumping scheme enhanced output power in the $\text{TEM}_{00}$ mode with a single bulk crystal. Accordingly, nearly diffraction-limited beam quality was produced with $M^{2}\approx 1.2$ at full pump power.

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Nonlinear refractive index of vanadate crystals in the near IR region

Cited by 10 publications

References 14 publications

The Application of Cryogenic Laser Physics to the Development of High Average Power Ultra-Short Pulse Lasers

The Application of Cryogenic Laser Physics to the Development of High Average Power Ultra-Short Pulse Lasers

Semiclassical theory of transient intracavity stimulated Raman scattering in compact lasers

High-repetition-rate and high-power picosecond regenerative amplifier based on a single bulk Nd:GdVO4 crystal

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