Tm:YAG crystal-derived double-clad fibers – A hybrid approach towards high gain and high efficiency Tm lasers
The hybrid approach of combining a Tm:YAG laser crystal with an amorphous fused silica tube is investigated to evaluate the suitability of the resulting crystal-derived fibers for efficient double-clad fiber lasers. The fabrication process and fiber properties of these Tm fibers are investigated, fo...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-08-01
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| Series: | Optical Materials: X |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590147822000432 |
| _version_ | 1818028997964988416 |
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| author | Martin Leich Robert Müller Sonja Unger Anka Schwuchow Jan Dellith Adrian Lorenz Jens Kobelke Matthias Jäger |
| author_facet | Martin Leich Robert Müller Sonja Unger Anka Schwuchow Jan Dellith Adrian Lorenz Jens Kobelke Matthias Jäger |
| author_sort | Martin Leich |
| collection | DOAJ |
| description | The hybrid approach of combining a Tm:YAG laser crystal with an amorphous fused silica tube is investigated to evaluate the suitability of the resulting crystal-derived fibers for efficient double-clad fiber lasers. The fabrication process and fiber properties of these Tm fibers are investigated, focusing on the dependence of the active fiber properties on the incorporated Tm3+ concentration. Crystal rods with different doping concentrations (TmxY1-x)3Al5O12 (x = 0.02, 0.05 and 0.08) were used as starting core material for fiber drawing. The investigated fibers are mechanically stable and result in a fairly homogenous and amorphous core glass with optical absorption and emission spectra that are similar to conventional Tm:Al doped silica fibers. Regarding laser properties with 790 nm cladding pumping, we could achieve a maximum slope efficiency of 47% with an output power of 4 W. The fiber laser results are compared to a conventionally fabricated double-clad Tm fiber prepared by Modified Chemical Vapor Deposition and solution doping. To the best of our knowledge, we demonstrate the highest laser output and the highest efficiency obtained from a Tm:YAG crystal-derived fiber. |
| first_indexed | 2024-12-10T05:12:41Z |
| format | Article |
| id | doaj.art-996e4adb1fa54c0da48ce497b6923505 |
| institution | Directory Open Access Journal |
| issn | 2590-1478 |
| language | English |
| last_indexed | 2024-12-10T05:12:41Z |
| publishDate | 2022-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Optical Materials: X |
| spelling | doaj.art-996e4adb1fa54c0da48ce497b69235052022-12-22T02:01:04ZengElsevierOptical Materials: X2590-14782022-08-0115100179Tm:YAG crystal-derived double-clad fibers – A hybrid approach towards high gain and high efficiency Tm lasersMartin Leich0Robert Müller1Sonja Unger2Anka Schwuchow3Jan Dellith4Adrian Lorenz5Jens Kobelke6Matthias Jäger7Corresponding author.; Leibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, Jena, 07745, GermanyLeibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, Jena, 07745, GermanyLeibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, Jena, 07745, GermanyLeibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, Jena, 07745, GermanyLeibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, Jena, 07745, GermanyLeibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, Jena, 07745, GermanyLeibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, Jena, 07745, GermanyLeibniz Institute of Photonic Technology, Albert-Einstein-Str. 9, Jena, 07745, GermanyThe hybrid approach of combining a Tm:YAG laser crystal with an amorphous fused silica tube is investigated to evaluate the suitability of the resulting crystal-derived fibers for efficient double-clad fiber lasers. The fabrication process and fiber properties of these Tm fibers are investigated, focusing on the dependence of the active fiber properties on the incorporated Tm3+ concentration. Crystal rods with different doping concentrations (TmxY1-x)3Al5O12 (x = 0.02, 0.05 and 0.08) were used as starting core material for fiber drawing. The investigated fibers are mechanically stable and result in a fairly homogenous and amorphous core glass with optical absorption and emission spectra that are similar to conventional Tm:Al doped silica fibers. Regarding laser properties with 790 nm cladding pumping, we could achieve a maximum slope efficiency of 47% with an output power of 4 W. The fiber laser results are compared to a conventionally fabricated double-clad Tm fiber prepared by Modified Chemical Vapor Deposition and solution doping. To the best of our knowledge, we demonstrate the highest laser output and the highest efficiency obtained from a Tm:YAG crystal-derived fiber.http://www.sciencedirect.com/science/article/pii/S2590147822000432Tm-doped fiberDouble-clad fiberFiber laserMolten Core Method |
| spellingShingle | Martin Leich Robert Müller Sonja Unger Anka Schwuchow Jan Dellith Adrian Lorenz Jens Kobelke Matthias Jäger Tm:YAG crystal-derived double-clad fibers – A hybrid approach towards high gain and high efficiency Tm lasers Optical Materials: X Tm-doped fiber Double-clad fiber Fiber laser Molten Core Method |
| title | Tm:YAG crystal-derived double-clad fibers – A hybrid approach towards high gain and high efficiency Tm lasers |
| title_full | Tm:YAG crystal-derived double-clad fibers – A hybrid approach towards high gain and high efficiency Tm lasers |
| title_fullStr | Tm:YAG crystal-derived double-clad fibers – A hybrid approach towards high gain and high efficiency Tm lasers |
| title_full_unstemmed | Tm:YAG crystal-derived double-clad fibers – A hybrid approach towards high gain and high efficiency Tm lasers |
| title_short | Tm:YAG crystal-derived double-clad fibers – A hybrid approach towards high gain and high efficiency Tm lasers |
| title_sort | tm yag crystal derived double clad fibers a hybrid approach towards high gain and high efficiency tm lasers |
| topic | Tm-doped fiber Double-clad fiber Fiber laser Molten Core Method |
| url | http://www.sciencedirect.com/science/article/pii/S2590147822000432 |
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