Investigation of the spatial structure of a high-power fiber laser beam

Nosov, P. A.; Shirankov, A. F.; Grigoryants, A. G.; Tretyakov, R. S.

doi:10.1088/1742-6596/584/1/012006

Cited by 12 publications

(2 citation statements)

References 11 publications

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“…When processing the measurement results, it is convenient to represent the hyperbolic dependence of the laser beam radius as w(z) = √ a + bz + cz 2 [10]. The coefficients a, b, c could be found by the least squares method using the following matrix expression [23]:…”

Section: Iso Methodsmentioning

confidence: 99%

Reconstructing the Spatial Parameters of a Laser Beam Using the Transport-of-Intensity Equation

Kovalev

Gritsenko

Stsepuro

et al. 2022

Sensors

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A simple method for reconstructing the spatial parameters of a laser beam, based on the transport-of-intensity equation, is presented. Registration of cross-section intensity distributions in several planes was carried out using a single CMOS camera. The processing of the experimental measurements with the help of specialized software helped to reconstruct all of the spatial parameters, namely, the radius and position of the waist, Rayleigh length, angular divergence, quality parameter M2 The method was compared with measurements made according to the international standard ISO 11146 and showed that the difference in the spatial parameters is 10% or less, which shows good agreement.

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Section: Iso Methodsmentioning

confidence: 99%

Reconstructing the Spatial Parameters of a Laser Beam Using the Transport-of-Intensity Equation

Kovalev

Gritsenko

Stsepuro

et al. 2022

Sensors

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“…Второй этап -это непосредственно сам процесс нанесения разработанного рисунка на Al-пленку посредством лазерной абляции при помощи лазерного гравера PEDB-400B. В качестве источника излучения будем применять волоконный ИК лазер, который широко применяется в лазерных системах и технологиях [13][14][15][16][17].…”

Section: экспериментальная частьunclassified

Исследование Параметров Прозрачных Токопроводящих Периодических Структур, Изготовленных Методом Лазерной Абляции

Остриков¹,

Носов²,

Михалёв³

et al. 2022

Оптика И Спектроскопия

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In this paper we report on results of an investigation of a transparent mesh electrode in a wide wavelength range 550 – 2000 nm with low electrical resistance manufactured by laser ablation with using an aluminum film with a thickness of 30 µm on a polyimide substrate with a thickness of 20 µm. The method is implemented using a fiber ytterbium nanosecond laser with a wavelength of radiation 1064 nm. The structure we have obtained has a transmittance > 50% in the designated spectrum range and the electrical resistance < 1.5 Ω/sq.

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