Mitigation of mode instability in laser oscillators based on deuterium loading
| Autor: | Haozhen Xu, Jinyan Li, Yibo Wang, Yingbin Xing, Haiqing Li, Jinggang Peng, Luyun Yang, Nengli Dai, Gui Chen, Ruiting Cao, Yisha Chen, Lei Liao |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.industry Mode (statistics) 02 engineering and technology 021001 nanoscience & nanotechnology Laser 01 natural sciences Instability Atomic and Molecular Physics and Optics Power (physics) law.invention 010309 optics Optics Deuterium law Fiber laser 0103 physical sciences Fiber Laser power scaling Atomic physics 0210 nano-technology business |
| Zdroj: | Optics Express. 27:25964 |
| ISSN: | 1094-4087 |
| DOI: | 10.1364/oe.27.025964 |
| Popis: | Ytterbium-doped fiber (YDF) loaded with deuterium is used herein to mitigate mode instability. Experimental results reveal that this method can increase the mode instability threshold in a laser oscillator. Specifically, when the YDF was loaded with deuterium over two- and four-week periods, the mode instability threshold power increased from ∼459 W to ∼533 W (16%) and to ∼622 W (35%), respectively, but the respective laser efficiencies were almost unaffected (71.5% vs. 72.9% and 75.4%). In conclusion, deuterium loading is effective in the mitigation of mode instability. It is envisaged to be applied in the power scaling of high-power fiber lasers. |
| Databáze: | OpenAIRE |
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