Solar-pumped dual-rod Ce:Nd:YAG laser with 58 W continuous-wave output power and 5.1° tracking error compensation width

Almeida, Joana; Liang, Dawei; Catela, Miguel; Costa, Hugo; Garcia, Dário; Tibúrcio, Bruno D.; Guillot, Emmanuel; Vistas, Cláudia R.

doi:10.1364/oe.507258

Cited by 4 publications

(2 citation statements)

References 41 publications

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“…1 Recent results on multirod solar lasers. 12,14,15,18,20,21 Sherniyozov, Payziyev, and Begimqulov: Enhancing solar laser performance. .…”

Section: Description Of the Solar Laser Multirod Modelmentioning

confidence: 99%

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Enhancing solar laser performance through multirod configurations

Sherniyozov,

Payziyev,

Begimqulov

2024

J. Photon. Energy

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We investigated the efficacy of multirod configurations in end-side pumped solar lasers using simulation studies. Employing a Monte-Carlo photon tracing technique, we developed a simulation model for a three-rod solar laser, validated and calibrated with recent experimental data. Our study of various multirod patterns identified configurations with three and seven rods as promising alternatives to single rods. Multirod solar laser systems showed notable enhancements in laser output power, doubling the output when compared. This substantial improvement was attributed to factors including pumping distributions, resonator losses, and thermal effects. We also addressed technical challenges associated with multiple rod configurations, proposing potential solutions. Our findings emphasize the potential of multirod configurations for enhancing solar laser performance.

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“…1 Recent results on multirod solar lasers. 12,14,15,18,20,21 Sherniyozov, Payziyev, and Begimqulov: Enhancing solar laser performance. .…”

Section: Description Of the Solar Laser Multirod Modelmentioning

confidence: 99%

“…16 Stable emissions from multirod are studied aiming to prevent solar tracking issues. [17][18][19] Figure 1 summarizes the most recent experimental and numerical results on multirod configurations.…”

Section: Introductionmentioning

confidence: 99%

Enhancing solar laser performance through multirod configurations

Sherniyozov,

Payziyev,

Begimqulov

2024

J. Photon. Energy

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Highly transparent Ce:Nd:YAG ceramic with good light conversion capacity for solar-pumped solid-state lasers

Zheng,

Xie,

Zhou

et al. 2024

Opt. Express

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Developing a high quality ceramic laser gain medium for solar directly pumped solid state lasers is essential, and yet the light conversion efficiency of the gain media for solar pumping remains a challenge. In this study, Ce and Nd ions, co-doped YAG transparent ceramics with theoretical transmittance and stable Ce3+ valent state were developed, and revealed that the absorbed visible light and light conversion efficiency in Ce,Nd:YAG ceramics were 3.98 times and 1.34 times higher than those in widely reported Cr,Nd:YAG ceramics, respectively. A concentration matching principle between Ce3+ and Nd3+ ions in YAG was established, and a higher Nd3+ ion doping concentration with a relatively low Ce3+ concentration was favorable to improve both the light conversion efficiency and emission intensity at 1064 nm of Ce,Nd:YAG ceramics. Energy transfer efficiency from Ce3+ to Nd3+ of the 0.3 at.%Ce,1.5at.%Nd:YAG ceramic reached as high as 61.71% at room temperature. Surprisingly, it was further promoted to 64.31% at a higher temperature of 473 K. More excited electrons at the upper energy level of Ce3+ ion under the high temperature accounted for this novel phenomenon. This study proposes a new design strategy of gain materials for solar directly pumped solid state lasers.

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Fully planar solar-pumped fiber laser with 0.1% slope efficiency

Endo,

Tomizawa,

Nagano

et al. 2024

Opt. Lett.

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A slope efficiency of 0.1% has been achieved for a fully planar solar-pumped fiber laser (SPFL) with a diameter of 30 cm and an output power of 34 mW. The fiber length is constrained to 400 m, but numerical simulations indicate that the maximum laser output power can be elevated to 113 mW by simply extending the length of the fiber and housing it in the same body. The tolerance to the solar tracking error was quantified, and the results demonstrated that more than 80% of the maximum output power can be sustained up to a ±23° tracking error. This study demonstrates the capability of the fully planar SPFL to operate without solar tracking.

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Solar-pumped dual-rod Ce:Nd:YAG laser with 58 W continuous-wave output power and 5.1° tracking error compensation width

Cited by 4 publications

References 41 publications

Enhancing solar laser performance through multirod configurations

Enhancing solar laser performance through multirod configurations

Highly transparent Ce:Nd:YAG ceramic with good light conversion capacity for solar-pumped solid-state lasers

Fully planar solar-pumped fiber laser with 0.1% slope efficiency

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