Xiaoke Yin, Le He, Shaokun Liu, Yingbo Chu, Nengli Dai, Jinyan Li. Bismuth‐Doped Phosphosilicate Fiber for O+E Band Amplification[J]. Chinese Journal of Lasers, 2024, 51(2): 0206002
- Chinese Journal of Lasers
- Vol. 51, Issue 2, 0206002 (2024)
Fig. 1. Refractive index profile of Bi-doped fiber preform with cross-sectional image of BPSF shown in inset
Fig. 2. Absorption spectrum of BPSF
Fig. 3. Experimental setup for unsaturated loss measurement
Fig. 4. Fiber loss versus 1240 nm pump power
Fig. 5. Experimental setup for gain measurement of Bi-doped fiber
Fig. 6. Measurement results. (a) ASE spectrum under 1240 nm pump; (b) output spectrum when fiber length is 140 m with input spectrum shown in inset
Fig. 7. Measured results of BPSF amplification performance
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