Xiran Zhu, Bin Zhang, Zilun Chen, Desheng Zhao, Linyong Yang, Jing Hou. Mid-infrared side-pumping combiner and all-fiber superfluorescent fiber source (invited)[J]. Infrared and Laser Engineering, 2023, 52(5): 20230101
- Infrared and Laser Engineering
- Vol. 52, Issue 5, 20230101 (2023)
Fig. 1. (a) Schematic diagram of tapered pump fiber parameters; (b) Schematic diagram of the pump-signal coupling process; (c) Diagram of combiner test device
Fig. 2. (a) Evolution diagram of combiner output power with pump power increasing; (b) Evolution diagram of combiner holder’s temperature with pump power increasing
Fig. 3. Mid-infrared all-fiber superfluorescence fiber source experimental device
Fig. 4. (a) Evolution of mid-infrared superfluorescence spectra at the pumping power of 0.39-1.8 W; (b) Evolution of mid-infrared superfluorescence spectra at pump power of 1.8-5.6 W
Fig. 5. Energy level structure diagram of Er3+
Fig. 6. (a) Evolution diagram of backward output power with pump power increasing; (b) Evolution diagram of forward output power with pump power increasing
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Table 1. Test results of combiner’s coupling efficiencies under different pump fiber tapering para-meters
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