Thermal analysis and experimental study of end-pumped Nd: YLF laser at 1053 nm

El-Agmy, R. M.; Al-Hosiny, N.

doi:10.1007/s13320-017-0412-6

Cited by 8 publications

(3 citation statements)

References 21 publications

(21 reference statements)

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“…where m, K 0, and T 0 are the best-fit to measured data provided by [14]. For a Super-Gaussian double-end pumping, Q(r,z) can be presented as:…”

Section: Thermal Modelingmentioning

confidence: 99%

“…[12]. A numerical investigation of thermal effects in single and double end-pumped solid-state lasers was achieved using the finite element method (FEM) for many commonly used lasers media crystals [13][14]. The FEM incorporated in LASCAD software was also used to evaluate thermal focal length and temperature distribution in a CW Nd: YAG laser rod for a double end-pumped laser media under Gaussian and super-Gaussian pumping beam profiles [15].…”

Section: Introductionmentioning

confidence: 99%

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Effects of pumping profiles on the temperature distributions in doubleend pumped solid-state lasers: A comparison study

Jawad¹,

AbdulRazzaq²,

Shibib³

2022

ETJ

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 Understanding the thermal behavior of dual end-pumped solid-state lasers.  The exponent of the beam profile has a significant effect on the temperature distributions.  Monitoring the thermal behavior keeps the performance of the lasers before being subject to damage.  A theoretical basis for laser cavity design of dual-end-pumped cylindrical laser rods was provided.In this work, the effects of pumping profiles on the temperature distributions in solid-state lasers pumped by laser diode from two different end faces were studied. With different pump spot radii of , various exponent factors were examined to evaluate the behavior of temperature distributions due to Gaussian and super-Gaussian profiles. For a Gaussian pumping (n=2), the maximum temperature difference on each rod face was calculated to be 295.5 K and 226 K, respectively, at a total pump power of 92.8 W (46.4 W per face). While at the same pumping power, the temperature decreased as the n exponent increased. A good match was obtained between the proposed model and the previous works listed in the literature.

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“…where m, K 0, and T 0 are the best-fit to measured data provided by [14]. For a Super-Gaussian double-end pumping, Q(r,z) can be presented as:…”

Section: Thermal Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of pumping profiles on the temperature distributions in doubleend pumped solid-state lasers: A comparison study

Jawad¹,

AbdulRazzaq²,

Shibib³

2022

ETJ

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show abstract

“…The derived thermal expression can serve as a guide for laser designers and a highly reliable reference for the complex thermal analysis of laser cavities. The thermal effects in single-and double-end-pumped solid-state lasers for several widely used laser materials was numerically investigated by [9,10] using finite element analysis (FEA). In all calculations, the FEA code incorporated with the laser cavity analysis and design (LASCAD) software was used in thermal and structural analyses.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Thermal Effects within Cylindrical Shape Solid-State Laser Rod

Razzaq¹,

Hubeatir²

2020

MSF

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In this work, a temperature-dependent analytical model was modified to predict the thermal effects of diode laser double–end-pumped cylindrical laser rod under Gaussian pump beam distribution. Heat load and temperature distribution were analyzed using the Kirchhoff integral transform method. Results show that a maximum temperature difference of approximately 69.61 K was obtained on each side face of the laser rod at a maximum power of 40 W (equally divided on each face). The total thermal focal length of approximately 34.64 mm was calculated under the Gaussian pumping profile. The finite element method code incorporated with well-verified software was used to numerically verify the obtained results, where the analytical and numerical results are highly matched. The results reveal that the total thermal focal length produced in a double–end-pumped geometry is two times less than that obtained from a single-end-pumped geometry.

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