A Cr2+:CdSe Laser with a CW Power of More Than 20 W

Zakharov, N. G.; Zorin, R.; Лазаренко, В. И.; Saltykov, E. V.; Lobanova, A.; Marugin, A. V.; Garyutkin, V. A.; Mishchenko, G. M.; Volkov, M.V.; Starikov, F. A.

doi:10.1134/s1063785022040150

Cited by 2 publications

(6 citation statements)

References 5 publications

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“…Thus, in the experiment with increase in the pumping radiation power by 2 times (which corresponds to increase Thermal conductivity coefficient q, W/(cm•K) 0.13 [5] 0.062( a) [5] 0.0585 [4] 0.069( c) [5] 0.063 [5] Thermooptical constant dn/dT , •10…”

Section: Calculation Results and Discussionmentioning

confidence: 99%

“…An average output power of about 40 W was obtained with repetitively pulsed lamp pumping. The development of this direction led to the implementation of continuous generation with rotating active elements made of crystals [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…In the paper [5] a parallelepiped-shaped Cr 2+ : CdSe crystal was used as active element, it moved perpendicular to the resonator axis at a speed of 28 m/s. Note that the active element was grown from the vapor phase using the technology described in [6].…”

Section: Introductionmentioning

confidence: 99%

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Modeling of optical inhomogeneities in Cr-=SUP=-2+-=/SUP=-:CdSe lasers with a moving active element

Volkov M.V.,

Garutkin V.A,

Zakharov N.G.

et al. 2023

Technical Physics

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The work is devoted to modeling the heating of moving active elements from CdSe and estimates emerging optical inhomogeneities. Active elements in the form of a parallelepiped are considered, which rotated in a circle perpendicular to the generation axis. As a result of calculations, it was found that the temperature distribution in the active element that occurs during the operation of the laser can be represented as the sum of two components. The first component is formed due to the balance between heat emission in the active element due to pumping and heat removal from it, which leads to the appearance of an aberration, which is the sum of "tilt" and "defocusing". The second component is formed directly during the passage of the pump spot through the active element, is determined only by the heat release density and is not related to the cooling method of the active element. It leads to the appearance of "Gaussian" aberration, the amplitude of this aberration is directly proportional to the power of heat emission and inversely proportional to the frequency of rotation of the active element. Keywords: mobile active elements, optical inhomogeneities of the refractive index, Cr2+:CdSe laser.

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Section: Calculation Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modeling of optical inhomogeneities in Cr-=SUP=-2+-=/SUP=-:CdSe lasers with a moving active element

Volkov M.V.,

Garutkin V.A,

Zakharov N.G.

et al. 2023

Technical Physics

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“…In numerical simulations active element in the form of a parallelepiped with a length of 4.5 mm has been considered. The heat release density and cooling conditions of the active element specified in the calculation corresponded to [3]. Figure 1 shows the typical temperature distribution in the region of the pump beam and its cross section at x=0 mm.…”

Section: Modeling Of Thermal Inhomogeneitiesmentioning

confidence: 99%

“…Figure 3 shows its characteristic response functions. The heat release density and cooling conditions correspond to the conditions [3]. The gain coefficient of the laser radiation has been calculated in the following simplified form:…”

Section: Modeling Of Intra-cavity Correctionmentioning

confidence: 99%

Adaptive optics for Cr:CdSe laser with a moving active element

Volkov

Garutkin

Zakharov

et al. 2022

28th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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The results of numerical studies of the possibility and efficiency of intra-cavity phase correction of Cr:CdSe laser radiation with the moving active elements using an adaptive optical system without a wavefront sensor are presented. The beam quality of the Cr:CdSe laser directly depends on the speed of movement of the active element due to the influence of thermal effects. The peak radiation power has determined by the efficiency of the resonator and the cooling system of the active element. It has been shown that the using of intra-cavity adaptive correction in the Cr:CdSe laser can significantly reduce the influence of thermal effects and expand the range of laser operation in single-mode regime.

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A Cr2+:CdSe Laser with a CW Power of More Than 20 W

Cited by 2 publications

References 5 publications

Modeling of optical inhomogeneities in Cr-=SUP=-2+-=/SUP=-:CdSe lasers with a moving active element

Modeling of optical inhomogeneities in Cr-=SUP=-2+-=/SUP=-:CdSe lasers with a moving active element

Adaptive optics for Cr:CdSe laser with a moving active element

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