Dual-wavelength erbium-doped fluoride fiber laser
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The laser source with 3 μm/2 μm output wavelength has many application prospects in clinical medicine, photoelectric countermeasure, and scientific research measurement. An Er3+ doped ZBLAN fiber laser with output wavelength of 2 .8 μm and 1 .6 μm is experimentally studied. By setting the pump power to 5 W, a continuous dual-wavelength output with a central wavelength of 2.803 μm and 1.61 μm is obtained and the corresponding maximum output power is 362.4 mW and 108.6 mW. The slope efficiency is 12.1% and 4.94% respectively. What’s more, the slope efficiency is 12.1% and 4.94% respectively, and the fluctuation rates of peak power of the two wavelengths are 9.7% and 2.1% within 4 h which indicate that the laser has relatively good stability.
KeywordsFiber laser Er-doped fluoride Cascaded mode 2.8 μm/1.6 μm
This work has been supported by the National Natural Science Foundation of China (Grant No.61675035. It provides basic theoretical research and copyright fees) and People’s Government of Jilin Province (Grant No. 20160204012GX. It provides device processing and testing costs).
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
Ethics approval was not needed.
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