21 μm composite Tm/Ho:YAG laser
| Autor: | Yan Ge, Haizhou Huang, Wu Hongchun, Hui Zheng, Jianhong Huang, Wen Weng, Wenxiong Lin |
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| Rok vydání: | 2018 |
| Předmět: |
Active laser medium
Materials science Laser diode business.industry Slope efficiency Energy conversion efficiency 02 engineering and technology Laser 01 natural sciences Waveguide (optics) Atomic and Molecular Physics and Optics law.invention 010309 optics 020210 optoelectronics & photonics Optics law Fiber laser 0103 physical sciences 0202 electrical engineering electronic engineering information engineering business Diffusion bonding |
| Zdroj: | Optics Letters. 43:1271 |
| ISSN: | 1539-4794 0146-9592 |
| Popis: | We realize Ho laser operation in a composite Tm/Ho:YAG gain medium for the first time, to the best of our knowledge, which was integrated via diffusion bonding the Tm-doped and Ho-doped crystals into a single bulk structure. A maximum output power around 6 W was obtained with a slope efficiency of 40.1% and conversion efficiency (CE) of 33.6% from the absorbed 785 nm laser diode to 2122 nm Ho laser, which is comparable with CE in 1.9 μm LD pumped Ho lasers. Such a scheme is demonstrated to be another valid way for Ho laser generation here, which is of significance to be adopted in other host media or waveguide structures for an assessable, compact, and efficient Ho laser. |
| Databáze: | OpenAIRE |
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