High power and beam quality continuous-wave Nd:GdVO_4 laser in-band diode-pumped at 912  nm

Nadimi, Mohammad; Waritanant, Tanant; Major, Arkady

doi:10.1364/prj.5.000346

Cited by 52 publications

(15 citation statements)

References 36 publications

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“…At the Lloyd image plane a clear CR beam with two concentric rings separated by the Poggendorff dark ring was obtained which in the far-field became a spot known as Raman. Future experiments will focus on further power scaling including the use of popular Nd-ion laser crystals [67][68][69][70] as well as continuous or discrete wavelength tunability [71][72][73][74][75] of the produced CR radiation.…”

Section: Resultsmentioning

confidence: 99%

Diode-pumped Yb:CALGO laser with conical refraction output

Reza

Akbari

Fedorova

et al. 2020

Solid State Lasers XXIX: Technology and Devices

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A high power conical refraction (CR) laser was demonstrated based on Yb:CALGO laser crystal with a separate intracavity CR element. The CR laser delivered the maximum output power of 6.25 W at 25 W of incident pump power which is the highest output power for the CR lasers to date. The separation of the CR element from the laser gain medium reduced the complexity of laser pumping. The generated CR laser beam exhibited excellent quality with well-resolved concentric rings and the Poggendorff dark ring.

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Section: Resultsmentioning

confidence: 99%

Diode-pumped Yb:CALGO laser with conical refraction output

Reza

Akbari

Fedorova

et al. 2020

Solid State Lasers XXIX: Technology and Devices

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“…By exploiting this feature, the oscillating wavelength with higher spectral intensity can be further suppressed so that DW components with equal intensities can be generated. In a similar fashion, the wavelength of the CR laser radiation can be also tuned over the available gain bandwidth of laser materials [47][48][49][50][51].…”

Section: Discussionmentioning

confidence: 99%

Conical refraction Nd:CALGO laser with dual-wavelength output

Akbari

Fedorova

et al. 2021

Solid State Lasers XXX: Technology and Devices

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“…The uneven absorption intensity of pump light makes the temperature of the part of gain crystals near the pump source much higher than that away from the pump source and the thermal effect much worse. Thereby the thermal lens effect, thermal birefringence effect, and even laser damage are more serious near the pump surface under high power pumped, which limits improvements of the output power and laser beam quality. − …”

Section: Introductionmentioning

confidence: 99%

Growth of a Gradient-Doped Single-Crystal Rod with Designable Distribution of Doped Ions by a Laser-Heated Pedestal Growth Method

Dai

Dong

Zhang

et al. 2023

Crystal Growth & Design

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The thermal effect of a diode pumped solid-state laser mainly caused by nonuniform thermal distribution is the significant bottleneck limiting the output power achievable. In this work, a novel strategy to synthesize YAG crystal thin rods with a designable axial dopant gradient based on the laser-heated pedestal growth (LHPG) method was developed. To make the pump light uniformly absorbed through the whole rod, the optimal doping concentration profile along the axis of single-crystal rods (SCRs) was theoretically deduced. Finite element simulation results demonstrated that the Nd:YAG crystal thin rods with a designed dopant gradient can significantly reduce heat loads under laser operation. Using the grown gradient doped SCRs as a gain medium, the laser diode pumped continuous-wave laser at ∼1.06 μm was achieved with the highest slope efficiency of 44% and a maximum output power of 6.46 W. Under the same conditions, the slope efficiency of the uniformly doped SCRs was 38.7% and the maximum output power was 4.95 W. The results show that the SCRs with gradient dopants possess better thermal management and superior laser performance. Significantly, this method also provides a new idea for realizing the controllable distribution of doped ions in crystal growth.

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High power and beam quality continuous-wave Nd:GdVO_4 laser in-band diode-pumped at 912 nm

Cited by 52 publications

References 36 publications

Diode-pumped Yb:CALGO laser with conical refraction output

Diode-pumped Yb:CALGO laser with conical refraction output

Conical refraction Nd:CALGO laser with dual-wavelength output

Growth of a Gradient-Doped Single-Crystal Rod with Designable Distribution of Doped Ions by a Laser-Heated Pedestal Growth Method

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