100 W continuous linearly polarized, high beam quality output from standard side-pumped Nd:YAG laser modules

Bereczki, Allan; Wetter, Niklaus Ursus

doi:10.1016/j.optlastec.2017.05.020

Cited by 19 publications

(7 citation statements)

References 22 publications

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“…Например, можно использовать схему резонатора, в которой уже учитывается оптическая сила возникающей линзы. Как правило, такие схемы разрабатываются под заданные тип резонатора и мощность излучения накачки, и работают они в узком диапазоне параметров лазерной системы, см., например, [11][12][13].…”

Section: результаты расчетов и их обсуждениеunclassified

Моделирование оптических неоднородностей в Cr-=SUP=-2+-=/SUP=-:CdSe-лазерах с подвижными активными элементами

Волков¹,

Гарюткин²,

Захаров³

et al. 2023

Журнал Технической Физики

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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.

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Section: результаты расчетов и их обсуждениеunclassified

Моделирование оптических неоднородностей в Cr-=SUP=-2+-=/SUP=-:CdSe-лазерах с подвижными активными элементами

Волков¹,

Гарюткин²,

Захаров³

et al. 2023

Журнал Технической Физики

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“…In a previous work, a Nd:YAG linear resonator with two diode side-pumped laser modules was utilized to produce up to 100.5W of continuous, linearly polarized output [4]. The same modules were utilized in a DSR ring resonator.…”

Section: Introductionmentioning

confidence: 99%

Dynamic stable ring resonator for high-power continuous single-frequency lasers: conditions for a compact resonator

Wetter¹,

Bereczki²

2023

Preprint

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When considering dynamically stable resonators, ring lasers are good choices because they have a twice larger stability interval when compared to linear resonators and sensitivity to misalignment decreasing with pump power, however literature does not provide easy design guidelines. A ring resonator utilizing Nd:YAG side pumped by diodes allowed single frequency operation. The output single-frequency laser had good output characteristics, however the overall length of resonator did not allow for building a compact device with low misalignment sensitivity and larger spacing between longitudinal modes which could improve single-frequency performance. Based on previously developed equations, which allow for ease of design of a ring DSR, we discuss how to build an equivalent ring resonator, aiming to building a shorter resonator with the same stability zone parameters. The study of the symmetric resonator containing a pair of lenses allowed finding the conditions to build the shortest possible resonator.

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“…However, when the stationary beam waists are increased, the induced birefringence causes a separation between the radial and tangential stability intervals of the resonator preventing the simultaneous oscillation of both polarizations, which limits the maximum stationary beam radius in the rod to approximately 1.1 mm for Nd:YAG rods, with stationary beam waist typically being 50% to 83% of the rod radius [2]. The use of the joint stability zones may bring some advantages [3][4][5][6][7] allowing for a wider composed zone, and, depending on chosen parameters presents decreasing sensitivity to misalignment at higher pump powers. Nevertheless, they have a discontinuity in the middle of the composed zone where beam radius at rod diverges quickly but it may be possible to oscillate each, the radial and tangential polarizations, in a separate stability interval.…”

Section: Introductionmentioning

confidence: 99%

“…In a previous work, a Nd:YAG linear resonator with two diode side-pumped laser modules was utilized to produce up to 100.5W of continuous, linearly polarized output [4].…”

Section: Introductionmentioning

confidence: 99%

Dynamic stable ring resonator for high-power continuous single-frequency lasers: conditions for a compact resonator

Bereczki¹,

Wetter²

2023

Appl. Opt.

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When considering dynamically stable resonators, ring lasers are good choices because they have a stability interval that is twice as large as that of linear resonators and sensitivity to misalignment decreasing with pump power; however, the literature does not provide easy design guidelines. A ring resonator utilizing Nd:YAG side pumped by diodes allowed single-frequency operation. The output single-frequency laser had good output characteristics; however, the overall length of the resonator did not allow for building a compact device with low misalignment sensitivity and larger spacing between longitudinal modes which could improve single-frequency performance. Based on previously developed equations, which allow for ease of design of a ring dynamically stable resonator, we discuss how to build an equivalent ring resonator, aiming to building a shorter resonator with the same stability zone parameters. The study of the symmetric resonator containing a pair of lenses allowed us to find the conditions to build the shortest possible resonator.

show abstract

100 W continuous linearly polarized, high beam quality output from standard side-pumped Nd:YAG laser modules

Cited by 19 publications

References 22 publications

Моделирование оптических неоднородностей в Cr-=SUP=-2+-=/SUP=-:CdSe-лазерах с подвижными активными элементами

Моделирование оптических неоднородностей в Cr-=SUP=-2+-=/SUP=-:CdSe-лазерах с подвижными активными элементами

Dynamic stable ring resonator for high-power continuous single-frequency lasers: conditions for a compact resonator

Dynamic stable ring resonator for high-power continuous single-frequency lasers: conditions for a compact resonator

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