Emerging transparent conducting oxides material: 2-dimensional plasmonic Zn doped CuGaO2 nanoplates for Q-switched fiber laser
| Autor: | Hongda Wu, Danni Li, He Zhang, Xiaohui Ma, Jingzhi Yin, Guanxin Wang, Xu Yingtian, Liang Jin, Xiaoyi Wang, Linlin Shi |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.industry Energy conversion efficiency Doping Nonlinear optics Pulse duration Saturable absorption 02 engineering and technology 021001 nanoscience & nanotechnology Laser 01 natural sciences Atomic and Molecular Physics and Optics law.invention 010309 optics Optics law Fiber laser 0103 physical sciences Optoelectronics 0210 nano-technology business Plasmon |
| Zdroj: | Optics Express. 27:25718 |
| ISSN: | 1094-4087 |
| DOI: | 10.1364/oe.27.025718 |
| Popis: | A passively Q-switched Er3+ doped fiber laser has been realized by using Zn doped hexagonal CuGaO2 (CGZO) nanoplates (NPs) as a saturable absorber (SA) for the first time. The CGZO NPs SA film exhibits strong saturable absorption property, meanwhile with a small nonsaturable loss of 5.179%, and the modulation depth is up to 40.821%. A stable passively Q-switched laser, which was centered at 1559.75 nm, was achieved, and the threshold was as low as 42 mW. With an increase of the pump power from 42mW to 361mW, the pulse duration decreases from 36 μs to 1.71 μs, and the maximum output power of 12.1 mW is achieved. Particularly, the optical-optical conversion efficiency of the Q-Switched laser based on CGZO NPs reached 3.76%. Due to whispering-gallery-mode (WGM) resonance in CGZO NPs, the nonlinear optical response of CGZO NPs has been enhancement. These findings demonstrate that CGZO NPs are promising SA for fabricating high-efficiency and low-threshold pulse lasers. |
| Databáze: | OpenAIRE |
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