Zhigang Han, Yunhan Zheng, Haoye Wang, Fangxin Li, Jiale Chen, Rihong Zhu. Home-made 6.7 kW narrow linewidth triple-cladding fiber laser[J]. Infrared and Laser Engineering, 2022, 51(2): 20210849
- Infrared and Laser Engineering
- Vol. 51, Issue 2, 20210849 (2022)
Fig. 1. (a) Structure, (b) optical path and (c) refractive index distribution of the Yb3+ doped LMA TCF
Fig. 2. Output spectrum varies with (a) amplifier gain fiber length and (b) core diameter
Fig. 3. Variations in the (a) polymer clad temperature with backward pump power, temperature difference between core and polymer clad at a total pump power of 5 kW
Fig. 4. (a) Variations in the core and polymer clad temperature with backward pump power for different thermal conductivities; (b) Variations of core temperature with thermal conductivity
Fig. 5. Variation of power upper limit with external temperature for different 2nd pump power ratios
Fig. 6. Schematic diagram of the home-made triple-cladding narrow linewidth fiber laser
Fig. 7. Comparison of the upper limit for the thermal effect power under different coupling methods
Fig. 8. Output power characteristics of the home-made high-power triple-clad narrow linewidth fiber laser
Fig. 9. Spectral characteristics of the home-made high-power triple-cladding narrow linewidth fiber laser
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Table 1. Parameters used in the simulation of a 34/460/530 μm LMA-YTF amplifier
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Table 2. Parameters used in the thermal effect simulation of a 34/460/530 μm LMA-YTF amplifier
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