Experimental investigation of a high-power 1018 nm monolithic tandem pump fiber source using 20/400 µm Yb-doped fiber

Lafouti, Majid; Latifi, Hamid; Fathi, Hossein; Ebrahimzadeh, Saeid; Sarikhani, S.; Sarabi, Hassan; Vatani, Vahid; Nabavi, Seyed Hassan

doi:10.1117/12.2520720

Cited by 2 publications

(2 citation statements)

References 19 publications

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“…Ytterbium ion (Yb 3+ ) has been widely studied as an optimal gain medium for high-power lasers due to its small quantum defect. [1][2][3][4][5][6][7][8][9][10][11][12] Due to the high Yb 3+ solubility, high gain single-frequency laser can be obtained from a Yb 3+ -doped phosphate fiber with a short linear cavity. 13 Thus, improving the laser performance of phosphate fibers is conducive to the miniaturization and integration of optical devices with linear cavity structure.…”

Section: Introductionmentioning

confidence: 99%

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Material constraint‐based laser performance estimation of Yb³⁺‐doped phosphate fibers

Yan

Chen

et al. 2021

J. Am. Ceram. Soc.

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Based on the material properties of 47 Yb 3+ -doped phosphate fibers with different sizes and lengths, a laser performance estimation model was established to estimate the laser wavelength just above the threshold (λ th ), the laser threshold (P th ), and the laser slope efficiency (η). This model was solved via a numerical computing method with an accuracy of 0.01. Under the material constraints of this model, λ th , P th , and η were investigated by sensitivity analysis and Monte Carlo numerical simulation. The results show that short fibers with a small core diameter may more easily produce a shorter λ th . Additionally, for constant material properties, fibers with a longer λ th may have a lower P th and higher η than other fibers. Verifying the above conjecture, an output power of 8.7 W with 35% enhancement in slope efficiency was obtained from an optimized phosphate fiber for an optical path in which the output of the short-wave laser was inhibited. This model can be extended to simulate the lasing wavelength of multi-composition fibers, providing a theoretical basis for special laser bands, laser material preparation, and fiber structure design.

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Section: Introductionmentioning

confidence: 99%

“…Ytterbium ion (Yb 3+ ) has been widely studied as an optimal gain medium for high‐power lasers due to its small quantum defect 1‐12 . Due to the high Yb 3+ solubility, high gain single‐frequency laser can be obtained from a Yb 3+ ‐doped phosphate fiber with a short linear cavity 13 .…”

Section: Introductionmentioning

confidence: 99%

Material constraint‐based laser performance estimation of Yb³⁺‐doped phosphate fibers

Yan

Chen

et al. 2021

J. Am. Ceram. Soc.

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High-power 1018 nm Yb³⁺ doped fiber lasers with different YDF core and coiling diameters: theoretical and experimental study

et al. 2023

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In this paper, the effect of the active fiber’s core/cladding area ratio on the output parameters of 1018 nm fiber lasers has been investigated. In this regard, we conducted a comprehensive study of two fiber lasers that utilized 25/400 and 30/250 µm ytterbium-doped fibers (YDFs), both theoretically and experimentally. The optimum length of YDFs required for 40 dB of amplified spontaneous emission suppression was calculated. Theoretical studies also identified the YDF breaking zone for lengths greater than the optimum. The experimental results showed that selecting the proper dimensions and coiling diameter for the active fiber significantly increased the power and efficiency of the YDF laser. We obtained an output power of 943 W with a 75.5% slope efficiency for the co-pumped 30/250 µm YDFL which, to the best of our knowledge, is the highest reported value for the 1018 nm co-pumped fiber laser. An analysis of the experimental and theoretical results revealed that YDFs with a core/cladding area ratio greater than 1% are more suitable for realizing a high-power 1018 nm fiber laser. The findings of this study are crucial for the development of high-power 1018 nm fiber lasers with improved performance.

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Experimental investigation of a high-power 1018 nm monolithic tandem pump fiber source using 20/400 µm Yb-doped fiber

Cited by 2 publications

References 19 publications

Material constraint‐based laser performance estimation of Yb³⁺‐doped phosphate fibers

Material constraint‐based laser performance estimation of Yb³⁺‐doped phosphate fibers

High-power 1018 nm Yb³⁺ doped fiber lasers with different YDF core and coiling diameters: theoretical and experimental study

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Experimental investigation of a high-power 1018 nm monolithic tandem pump fiber source using 20/400 µm Yb-doped fiber

Cited by 2 publications

References 19 publications

Material constraint‐based laser performance estimation of Yb3+‐doped phosphate fibers

Material constraint‐based laser performance estimation of Yb3+‐doped phosphate fibers

High-power 1018 nm Yb3+ doped fiber lasers with different YDF core and coiling diameters: theoretical and experimental study

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Material constraint‐based laser performance estimation of Yb³⁺‐doped phosphate fibers

Material constraint‐based laser performance estimation of Yb³⁺‐doped phosphate fibers

High-power 1018 nm Yb³⁺ doped fiber lasers with different YDF core and coiling diameters: theoretical and experimental study