Optimization of Nd-Doped LMA Fibers for High-Power Laser Emission Near 915 nm
We report on the development of low numerical aperture (NA) Nd-doped large mode area (LMA) fibers with optimized core/clad geometry to achieve high-power laser emission near 915 nm while maintaining near diffraction-limited output beam. The influence of clad-to-core ratio on the detriment...
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/10345644/ |
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| author | Raphael Florentin Kilian Le Corre Thierry Robin Alexandre Barnini Roopa Prakash Giorgio Santarelli Herve Gilles Sylvain Girard Mathieu Laroche |
| author_facet | Raphael Florentin Kilian Le Corre Thierry Robin Alexandre Barnini Roopa Prakash Giorgio Santarelli Herve Gilles Sylvain Girard Mathieu Laroche |
| author_sort | Raphael Florentin |
| collection | DOAJ |
| description | We report on the development of low numerical aperture (NA) Nd-doped large mode area (LMA) fibers with optimized core/clad geometry to achieve high-power laser emission near 915 nm while maintaining near diffraction-limited output beam. The influence of clad-to-core ratio on the detrimental amplified spontaneous emission (ASE) at 1050 nm and on the beam quality was studied experimentally in different amplifier configurations. We also show that bending the Nd-doped LMA fiber to a precise radius of curvature significantly improves the overall laser performances of these fibers by limiting both higher-order modes and spurious ASE at 1050 nm. The possibility of all-fiber multi-stages amplifier configurations with diffraction-limited output beam is finally discussed. |
| format | Article |
| id | doaj-art-0dae52f7f4ba498793583c24789b47b0 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-0dae52f7f4ba498793583c24789b47b02025-08-20T03:33:02ZengIEEEIEEE Photonics Journal1943-06552024-01-011611610.1109/JPHOT.2023.333984910345644Optimization of Nd-Doped LMA Fibers for High-Power Laser Emission Near 915 nmRaphael Florentin0https://orcid.org/0000-0002-6443-7899Kilian Le Corre1Thierry Robin2Alexandre Barnini3Roopa Prakash4Giorgio Santarelli5https://orcid.org/0000-0003-2219-2632Herve Gilles6Sylvain Girard7Mathieu Laroche8Centre de recherche sur les ions, les matériaux et la photonique, ENSICAEN-CNRS-CEA, Normandie Université, Caen, FranceExail (formerly iXblue), Lannion, FranceExail (formerly iXblue), Lannion, FranceExail (formerly iXblue), Lannion, FranceLP2N, Talence, FranceLP2N, Talence, FranceCentre de recherche sur les ions, les matériaux et la photonique, ENSICAEN-CNRS-CEA, Normandie Université, Caen, FranceCentre de recherche sur les ions, les matériaux et la photonique, ENSICAEN-CNRS-CEA, Normandie Université, Caen, FranceCentre de recherche sur les ions, les matériaux et la photonique, ENSICAEN-CNRS-CEA, Normandie Université, Caen, FranceWe report on the development of low numerical aperture (NA) Nd-doped large mode area (LMA) fibers with optimized core/clad geometry to achieve high-power laser emission near 915 nm while maintaining near diffraction-limited output beam. The influence of clad-to-core ratio on the detrimental amplified spontaneous emission (ASE) at 1050 nm and on the beam quality was studied experimentally in different amplifier configurations. We also show that bending the Nd-doped LMA fiber to a precise radius of curvature significantly improves the overall laser performances of these fibers by limiting both higher-order modes and spurious ASE at 1050 nm. The possibility of all-fiber multi-stages amplifier configurations with diffraction-limited output beam is finally discussed.https://ieeexplore.ieee.org/document/10345644/Optical fibers amplifiersNd-doped fibersLMA fiber amplifiers |
| spellingShingle | Raphael Florentin Kilian Le Corre Thierry Robin Alexandre Barnini Roopa Prakash Giorgio Santarelli Herve Gilles Sylvain Girard Mathieu Laroche Optimization of Nd-Doped LMA Fibers for High-Power Laser Emission Near 915 nm IEEE Photonics Journal Optical fibers amplifiers Nd-doped fibers LMA fiber amplifiers |
| title | Optimization of Nd-Doped LMA Fibers for High-Power Laser Emission Near 915 nm |
| title_full | Optimization of Nd-Doped LMA Fibers for High-Power Laser Emission Near 915 nm |
| title_fullStr | Optimization of Nd-Doped LMA Fibers for High-Power Laser Emission Near 915 nm |
| title_full_unstemmed | Optimization of Nd-Doped LMA Fibers for High-Power Laser Emission Near 915 nm |
| title_short | Optimization of Nd-Doped LMA Fibers for High-Power Laser Emission Near 915 nm |
| title_sort | optimization of nd doped lma fibers for high power laser emission near 915 nm |
| topic | Optical fibers amplifiers Nd-doped fibers LMA fiber amplifiers |
| url | https://ieeexplore.ieee.org/document/10345644/ |
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